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2586 lines
82 KiB
2586 lines
82 KiB
/* |
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* utils for libavcodec |
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* Copyright (c) 2001 Fabrice Bellard |
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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/** |
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* @file |
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* utils. |
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*/ |
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|
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#include "libavutil/avassert.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/crc.h" |
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#include "libavutil/mathematics.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/audioconvert.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/samplefmt.h" |
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#include "libavutil/dict.h" |
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#include "libavutil/avassert.h" |
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "libavutil/opt.h" |
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#include "thread.h" |
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#include "frame_thread_encoder.h" |
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#include "audioconvert.h" |
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#include "internal.h" |
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#include "bytestream.h" |
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#include <stdlib.h> |
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#include <stdarg.h> |
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#include <limits.h> |
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#include <float.h> |
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|
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static int volatile entangled_thread_counter = 0; |
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static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op); |
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static void *codec_mutex; |
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static void *avformat_mutex; |
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|
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void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size) |
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{ |
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if (min_size < *size) |
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return ptr; |
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|
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min_size = FFMAX(17 * min_size / 16 + 32, min_size); |
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|
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ptr = av_realloc(ptr, min_size); |
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/* we could set this to the unmodified min_size but this is safer |
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* if the user lost the ptr and uses NULL now |
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*/ |
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if (!ptr) |
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min_size = 0; |
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|
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*size = min_size; |
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|
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return ptr; |
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} |
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|
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static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc) |
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{ |
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void **p = ptr; |
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if (min_size < *size) |
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return 0; |
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min_size = FFMAX(17 * min_size / 16 + 32, min_size); |
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av_free(*p); |
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*p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size); |
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if (!*p) |
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min_size = 0; |
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*size = min_size; |
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return 1; |
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} |
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|
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void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size) |
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{ |
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ff_fast_malloc(ptr, size, min_size, 0); |
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} |
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|
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void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size) |
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{ |
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uint8_t **p = ptr; |
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if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { |
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av_freep(p); |
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*size = 0; |
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return; |
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} |
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if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1)) |
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memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); |
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} |
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|
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void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size) |
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{ |
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uint8_t **p = ptr; |
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if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { |
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av_freep(p); |
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*size = 0; |
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return; |
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} |
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if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1)) |
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memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE); |
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} |
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|
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/* encoder management */ |
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static AVCodec *first_avcodec = NULL; |
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|
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AVCodec *av_codec_next(const AVCodec *c) |
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{ |
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if (c) |
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return c->next; |
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else |
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return first_avcodec; |
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} |
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|
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static void avcodec_init(void) |
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{ |
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static int initialized = 0; |
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|
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if (initialized != 0) |
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return; |
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initialized = 1; |
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|
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ff_dsputil_static_init(); |
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} |
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int av_codec_is_encoder(const AVCodec *codec) |
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{ |
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return codec && (codec->encode_sub || codec->encode2); |
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} |
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|
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int av_codec_is_decoder(const AVCodec *codec) |
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{ |
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return codec && codec->decode; |
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} |
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void avcodec_register(AVCodec *codec) |
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{ |
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AVCodec **p; |
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avcodec_init(); |
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p = &first_avcodec; |
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while (*p != NULL) |
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p = &(*p)->next; |
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*p = codec; |
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codec->next = NULL; |
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|
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if (codec->init_static_data) |
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codec->init_static_data(codec); |
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} |
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|
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unsigned avcodec_get_edge_width(void) |
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{ |
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return EDGE_WIDTH; |
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} |
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|
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void avcodec_set_dimensions(AVCodecContext *s, int width, int height) |
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{ |
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s->coded_width = width; |
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s->coded_height = height; |
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s->width = -((-width ) >> s->lowres); |
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s->height = -((-height) >> s->lowres); |
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} |
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#define INTERNAL_BUFFER_SIZE (32 + 1) |
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|
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void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, |
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int linesize_align[AV_NUM_DATA_POINTERS]) |
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{ |
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int i; |
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int w_align = 1; |
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int h_align = 1; |
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|
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switch (s->pix_fmt) { |
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case AV_PIX_FMT_YUV420P: |
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case AV_PIX_FMT_YUYV422: |
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case AV_PIX_FMT_UYVY422: |
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case AV_PIX_FMT_YUV422P: |
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case AV_PIX_FMT_YUV440P: |
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case AV_PIX_FMT_YUV444P: |
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case AV_PIX_FMT_GBRP: |
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case AV_PIX_FMT_GRAY8: |
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case AV_PIX_FMT_GRAY16BE: |
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case AV_PIX_FMT_GRAY16LE: |
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case AV_PIX_FMT_YUVJ420P: |
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case AV_PIX_FMT_YUVJ422P: |
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case AV_PIX_FMT_YUVJ440P: |
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case AV_PIX_FMT_YUVJ444P: |
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case AV_PIX_FMT_YUVA420P: |
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case AV_PIX_FMT_YUVA422P: |
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case AV_PIX_FMT_YUVA444P: |
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case AV_PIX_FMT_YUV420P9LE: |
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case AV_PIX_FMT_YUV420P9BE: |
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case AV_PIX_FMT_YUV420P10LE: |
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case AV_PIX_FMT_YUV420P10BE: |
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case AV_PIX_FMT_YUV420P12LE: |
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case AV_PIX_FMT_YUV420P12BE: |
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case AV_PIX_FMT_YUV420P14LE: |
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case AV_PIX_FMT_YUV420P14BE: |
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case AV_PIX_FMT_YUV422P9LE: |
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case AV_PIX_FMT_YUV422P9BE: |
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case AV_PIX_FMT_YUV422P10LE: |
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case AV_PIX_FMT_YUV422P10BE: |
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case AV_PIX_FMT_YUV422P12LE: |
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case AV_PIX_FMT_YUV422P12BE: |
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case AV_PIX_FMT_YUV422P14LE: |
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case AV_PIX_FMT_YUV422P14BE: |
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case AV_PIX_FMT_YUV444P9LE: |
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case AV_PIX_FMT_YUV444P9BE: |
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case AV_PIX_FMT_YUV444P10LE: |
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case AV_PIX_FMT_YUV444P10BE: |
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case AV_PIX_FMT_YUV444P12LE: |
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case AV_PIX_FMT_YUV444P12BE: |
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case AV_PIX_FMT_YUV444P14LE: |
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case AV_PIX_FMT_YUV444P14BE: |
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case AV_PIX_FMT_GBRP9LE: |
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case AV_PIX_FMT_GBRP9BE: |
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case AV_PIX_FMT_GBRP10LE: |
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case AV_PIX_FMT_GBRP10BE: |
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case AV_PIX_FMT_GBRP12LE: |
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case AV_PIX_FMT_GBRP12BE: |
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case AV_PIX_FMT_GBRP14LE: |
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case AV_PIX_FMT_GBRP14BE: |
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w_align = 16; //FIXME assume 16 pixel per macroblock |
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h_align = 16 * 2; // interlaced needs 2 macroblocks height |
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break; |
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case AV_PIX_FMT_YUV411P: |
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case AV_PIX_FMT_UYYVYY411: |
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w_align = 32; |
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h_align = 8; |
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break; |
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case AV_PIX_FMT_YUV410P: |
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if (s->codec_id == AV_CODEC_ID_SVQ1) { |
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w_align = 64; |
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h_align = 64; |
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} |
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case AV_PIX_FMT_RGB555: |
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if (s->codec_id == AV_CODEC_ID_RPZA) { |
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w_align = 4; |
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h_align = 4; |
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} |
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case AV_PIX_FMT_PAL8: |
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case AV_PIX_FMT_BGR8: |
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case AV_PIX_FMT_RGB8: |
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if (s->codec_id == AV_CODEC_ID_SMC) { |
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w_align = 4; |
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h_align = 4; |
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} |
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break; |
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case AV_PIX_FMT_BGR24: |
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if ((s->codec_id == AV_CODEC_ID_MSZH) || |
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(s->codec_id == AV_CODEC_ID_ZLIB)) { |
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w_align = 4; |
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h_align = 4; |
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} |
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break; |
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default: |
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w_align = 1; |
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h_align = 1; |
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break; |
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} |
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if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) { |
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w_align = FFMAX(w_align, 8); |
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} |
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*width = FFALIGN(*width, w_align); |
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*height = FFALIGN(*height, h_align); |
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if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) |
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// some of the optimized chroma MC reads one line too much |
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// which is also done in mpeg decoders with lowres > 0 |
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*height += 2; |
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for (i = 0; i < 4; i++) |
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linesize_align[i] = STRIDE_ALIGN; |
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} |
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void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height) |
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{ |
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int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w; |
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int linesize_align[AV_NUM_DATA_POINTERS]; |
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int align; |
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avcodec_align_dimensions2(s, width, height, linesize_align); |
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align = FFMAX(linesize_align[0], linesize_align[3]); |
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linesize_align[1] <<= chroma_shift; |
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linesize_align[2] <<= chroma_shift; |
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align = FFMAX3(align, linesize_align[1], linesize_align[2]); |
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*width = FFALIGN(*width, align); |
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} |
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|
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void ff_init_buffer_info(AVCodecContext *s, AVFrame *frame) |
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{ |
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if (s->pkt) { |
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frame->pkt_pts = s->pkt->pts; |
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frame->pkt_pos = s->pkt->pos; |
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frame->pkt_duration = s->pkt->duration; |
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} else { |
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frame->pkt_pts = AV_NOPTS_VALUE; |
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frame->pkt_pos = -1; |
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frame->pkt_duration = 0; |
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} |
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frame->reordered_opaque = s->reordered_opaque; |
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|
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switch (s->codec->type) { |
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case AVMEDIA_TYPE_VIDEO: |
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frame->width = s->width; |
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frame->height = s->height; |
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frame->format = s->pix_fmt; |
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frame->sample_aspect_ratio = s->sample_aspect_ratio; |
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break; |
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case AVMEDIA_TYPE_AUDIO: |
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frame->sample_rate = s->sample_rate; |
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frame->format = s->sample_fmt; |
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frame->channel_layout = s->channel_layout; |
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frame->channels = s->channels; |
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break; |
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} |
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} |
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|
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int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, |
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enum AVSampleFormat sample_fmt, const uint8_t *buf, |
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int buf_size, int align) |
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{ |
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int ch, planar, needed_size, ret = 0; |
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|
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needed_size = av_samples_get_buffer_size(NULL, nb_channels, |
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frame->nb_samples, sample_fmt, |
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align); |
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if (buf_size < needed_size) |
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return AVERROR(EINVAL); |
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planar = av_sample_fmt_is_planar(sample_fmt); |
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if (planar && nb_channels > AV_NUM_DATA_POINTERS) { |
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if (!(frame->extended_data = av_mallocz(nb_channels * |
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sizeof(*frame->extended_data)))) |
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return AVERROR(ENOMEM); |
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} else { |
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frame->extended_data = frame->data; |
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} |
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|
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if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0], |
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(uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples, |
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sample_fmt, align)) < 0) { |
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if (frame->extended_data != frame->data) |
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av_freep(&frame->extended_data); |
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return ret; |
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} |
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if (frame->extended_data != frame->data) { |
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for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++) |
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frame->data[ch] = frame->extended_data[ch]; |
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} |
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|
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return ret; |
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} |
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|
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static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
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{ |
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AVCodecInternal *avci = avctx->internal; |
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InternalBuffer *buf; |
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int buf_size, ret; |
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|
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buf_size = av_samples_get_buffer_size(NULL, avctx->channels, |
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frame->nb_samples, avctx->sample_fmt, |
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0); |
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if (buf_size < 0) |
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return AVERROR(EINVAL); |
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|
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/* allocate InternalBuffer if needed */ |
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if (!avci->buffer) { |
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avci->buffer = av_mallocz(sizeof(InternalBuffer)); |
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if (!avci->buffer) |
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return AVERROR(ENOMEM); |
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} |
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buf = avci->buffer; |
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|
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/* if there is a previously-used internal buffer, check its size and |
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* channel count to see if we can reuse it */ |
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if (buf->extended_data) { |
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/* if current buffer is too small, free it */ |
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if (buf->extended_data[0] && buf_size > buf->audio_data_size) { |
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av_free(buf->extended_data[0]); |
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if (buf->extended_data != buf->data) |
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av_free(buf->extended_data); |
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buf->extended_data = NULL; |
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buf->data[0] = NULL; |
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} |
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/* if number of channels has changed, reset and/or free extended data |
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* pointers but leave data buffer in buf->data[0] for reuse */ |
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if (buf->nb_channels != avctx->channels) { |
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if (buf->extended_data != buf->data) |
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av_free(buf->extended_data); |
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buf->extended_data = NULL; |
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} |
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} |
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|
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/* if there is no previous buffer or the previous buffer cannot be used |
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* as-is, allocate a new buffer and/or rearrange the channel pointers */ |
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if (!buf->extended_data) { |
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if (!buf->data[0]) { |
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if (!(buf->data[0] = av_mallocz(buf_size))) |
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return AVERROR(ENOMEM); |
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buf->audio_data_size = buf_size; |
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} |
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if ((ret = avcodec_fill_audio_frame(frame, avctx->channels, |
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avctx->sample_fmt, buf->data[0], |
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buf->audio_data_size, 0))) |
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return ret; |
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|
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if (frame->extended_data == frame->data) |
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buf->extended_data = buf->data; |
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else |
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buf->extended_data = frame->extended_data; |
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memcpy(buf->data, frame->data, sizeof(frame->data)); |
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buf->linesize[0] = frame->linesize[0]; |
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buf->nb_channels = avctx->channels; |
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} else { |
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/* copy InternalBuffer info to the AVFrame */ |
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frame->extended_data = buf->extended_data; |
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frame->linesize[0] = buf->linesize[0]; |
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memcpy(frame->data, buf->data, sizeof(frame->data)); |
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} |
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|
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frame->type = FF_BUFFER_TYPE_INTERNAL; |
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ff_init_buffer_info(avctx, frame); |
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|
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if (avctx->debug & FF_DEBUG_BUFFERS) |
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av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p, " |
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"internal audio buffer used\n", frame); |
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|
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return 0; |
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} |
|
|
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static int video_get_buffer(AVCodecContext *s, AVFrame *pic) |
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{ |
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int i; |
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int w = s->width; |
|
int h = s->height; |
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InternalBuffer *buf; |
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AVCodecInternal *avci = s->internal; |
|
|
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if (pic->data[0] != NULL) { |
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av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n"); |
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return -1; |
|
} |
|
if (avci->buffer_count >= INTERNAL_BUFFER_SIZE) { |
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av_log(s, AV_LOG_ERROR, "buffer_count overflow (missing release_buffer?)\n"); |
|
return -1; |
|
} |
|
|
|
if (av_image_check_size(w, h, 0, s) || s->pix_fmt<0) { |
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av_log(s, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n"); |
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return -1; |
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} |
|
|
|
if (!avci->buffer) { |
|
avci->buffer = av_mallocz((INTERNAL_BUFFER_SIZE + 1) * |
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sizeof(InternalBuffer)); |
|
} |
|
|
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buf = &avci->buffer[avci->buffer_count]; |
|
|
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if (buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)) { |
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for (i = 0; i < AV_NUM_DATA_POINTERS; i++) { |
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av_freep(&buf->base[i]); |
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buf->data[i] = NULL; |
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} |
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} |
|
|
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if (!buf->base[0]) { |
|
int h_chroma_shift, v_chroma_shift; |
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int size[4] = { 0 }; |
|
int tmpsize; |
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int unaligned; |
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AVPicture picture; |
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int stride_align[AV_NUM_DATA_POINTERS]; |
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const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1 + 1; |
|
|
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avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift); |
|
|
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avcodec_align_dimensions2(s, &w, &h, stride_align); |
|
|
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if (!(s->flags & CODEC_FLAG_EMU_EDGE)) { |
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w += EDGE_WIDTH * 2; |
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h += EDGE_WIDTH * 2; |
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} |
|
|
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do { |
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// NOTE: do not align linesizes individually, this breaks e.g. assumptions |
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// that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2 |
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av_image_fill_linesizes(picture.linesize, s->pix_fmt, w); |
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// increase alignment of w for next try (rhs gives the lowest bit set in w) |
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w += w & ~(w - 1); |
|
|
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unaligned = 0; |
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for (i = 0; i < 4; i++) |
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unaligned |= picture.linesize[i] % stride_align[i]; |
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} while (unaligned); |
|
|
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tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize); |
|
if (tmpsize < 0) |
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return -1; |
|
|
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for (i = 0; i < 3 && picture.data[i + 1]; i++) |
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size[i] = picture.data[i + 1] - picture.data[i]; |
|
size[i] = tmpsize - (picture.data[i] - picture.data[0]); |
|
|
|
memset(buf->base, 0, sizeof(buf->base)); |
|
memset(buf->data, 0, sizeof(buf->data)); |
|
|
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for (i = 0; i < 4 && size[i]; i++) { |
|
const int h_shift = i == 0 ? 0 : h_chroma_shift; |
|
const int v_shift = i == 0 ? 0 : v_chroma_shift; |
|
|
|
buf->linesize[i] = picture.linesize[i]; |
|
|
|
buf->base[i] = av_malloc(size[i] + 16); //FIXME 16 |
|
if (buf->base[i] == NULL) |
|
return AVERROR(ENOMEM); |
|
memset(buf->base[i], 128, size[i]); |
|
|
|
// no edge if EDGE EMU or not planar YUV |
|
if ((s->flags & CODEC_FLAG_EMU_EDGE) || !size[2]) |
|
buf->data[i] = buf->base[i]; |
|
else |
|
buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i] * EDGE_WIDTH >> v_shift) + (pixel_size * EDGE_WIDTH >> h_shift), stride_align[i]); |
|
} |
|
for (; i < AV_NUM_DATA_POINTERS; i++) { |
|
buf->base[i] = buf->data[i] = NULL; |
|
buf->linesize[i] = 0; |
|
} |
|
if (size[1] && !size[2]) |
|
ff_set_systematic_pal2((uint32_t *)buf->data[1], s->pix_fmt); |
|
buf->width = s->width; |
|
buf->height = s->height; |
|
buf->pix_fmt = s->pix_fmt; |
|
} |
|
pic->type = FF_BUFFER_TYPE_INTERNAL; |
|
|
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) { |
|
pic->base[i] = buf->base[i]; |
|
pic->data[i] = buf->data[i]; |
|
pic->linesize[i] = buf->linesize[i]; |
|
} |
|
pic->extended_data = pic->data; |
|
avci->buffer_count++; |
|
pic->width = buf->width; |
|
pic->height = buf->height; |
|
pic->format = buf->pix_fmt; |
|
|
|
ff_init_buffer_info(s, pic); |
|
|
|
if (s->debug & FF_DEBUG_BUFFERS) |
|
av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d " |
|
"buffers used\n", pic, avci->buffer_count); |
|
|
|
return 0; |
|
} |
|
|
|
int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
|
{ |
|
switch (avctx->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
return video_get_buffer(avctx, frame); |
|
case AVMEDIA_TYPE_AUDIO: |
|
return audio_get_buffer(avctx, frame); |
|
default: |
|
return -1; |
|
} |
|
} |
|
|
|
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic) |
|
{ |
|
int i; |
|
InternalBuffer *buf, *last; |
|
AVCodecInternal *avci = s->internal; |
|
|
|
av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO); |
|
|
|
assert(pic->type == FF_BUFFER_TYPE_INTERNAL); |
|
assert(avci->buffer_count); |
|
|
|
if (avci->buffer) { |
|
buf = NULL; /* avoids warning */ |
|
for (i = 0; i < avci->buffer_count; i++) { //just 3-5 checks so is not worth to optimize |
|
buf = &avci->buffer[i]; |
|
if (buf->data[0] == pic->data[0]) |
|
break; |
|
} |
|
av_assert0(i < avci->buffer_count); |
|
avci->buffer_count--; |
|
last = &avci->buffer[avci->buffer_count]; |
|
|
|
if (buf != last) |
|
FFSWAP(InternalBuffer, *buf, *last); |
|
} |
|
|
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) |
|
pic->data[i] = NULL; |
|
// pic->base[i]=NULL; |
|
|
|
if (s->debug & FF_DEBUG_BUFFERS) |
|
av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d " |
|
"buffers used\n", pic, avci->buffer_count); |
|
} |
|
|
|
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic) |
|
{ |
|
AVFrame temp_pic; |
|
int i; |
|
|
|
av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO); |
|
|
|
if (pic->data[0] && (pic->width != s->width || pic->height != s->height || pic->format != s->pix_fmt)) { |
|
av_log(s, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n", |
|
pic->width, pic->height, av_get_pix_fmt_name(pic->format), s->width, s->height, av_get_pix_fmt_name(s->pix_fmt)); |
|
s->release_buffer(s, pic); |
|
} |
|
|
|
ff_init_buffer_info(s, pic); |
|
|
|
/* If no picture return a new buffer */ |
|
if (pic->data[0] == NULL) { |
|
/* We will copy from buffer, so must be readable */ |
|
pic->buffer_hints |= FF_BUFFER_HINTS_READABLE; |
|
return s->get_buffer(s, pic); |
|
} |
|
|
|
assert(s->pix_fmt == pic->format); |
|
|
|
/* If internal buffer type return the same buffer */ |
|
if (pic->type == FF_BUFFER_TYPE_INTERNAL) { |
|
return 0; |
|
} |
|
|
|
/* |
|
* Not internal type and reget_buffer not overridden, emulate cr buffer |
|
*/ |
|
temp_pic = *pic; |
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) |
|
pic->data[i] = pic->base[i] = NULL; |
|
pic->opaque = NULL; |
|
/* Allocate new frame */ |
|
if (s->get_buffer(s, pic)) |
|
return -1; |
|
/* Copy image data from old buffer to new buffer */ |
|
av_picture_copy((AVPicture *)pic, (AVPicture *)&temp_pic, s->pix_fmt, s->width, |
|
s->height); |
|
s->release_buffer(s, &temp_pic); // Release old frame |
|
return 0; |
|
} |
|
|
|
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < count; i++) { |
|
int r = func(c, (char *)arg + i * size); |
|
if (ret) |
|
ret[i] = r; |
|
} |
|
return 0; |
|
} |
|
|
|
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < count; i++) { |
|
int r = func(c, arg, i, 0); |
|
if (ret) |
|
ret[i] = r; |
|
} |
|
return 0; |
|
} |
|
|
|
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt) |
|
{ |
|
while (*fmt != AV_PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt)) |
|
++fmt; |
|
return fmt[0]; |
|
} |
|
|
|
void avcodec_get_frame_defaults(AVFrame *frame) |
|
{ |
|
#if LIBAVCODEC_VERSION_MAJOR >= 55 |
|
// extended_data should explicitly be freed when needed, this code is unsafe currently |
|
// also this is not compatible to the <55 ABI/API |
|
if (frame->extended_data != frame->data && 0) |
|
av_freep(&frame->extended_data); |
|
#endif |
|
|
|
memset(frame, 0, sizeof(AVFrame)); |
|
|
|
frame->pts = |
|
frame->pkt_dts = |
|
frame->pkt_pts = |
|
frame->best_effort_timestamp = AV_NOPTS_VALUE; |
|
frame->pkt_duration = 0; |
|
frame->pkt_pos = -1; |
|
frame->key_frame = 1; |
|
frame->sample_aspect_ratio = (AVRational) {0, 1 }; |
|
frame->format = -1; /* unknown */ |
|
frame->extended_data = frame->data; |
|
} |
|
|
|
AVFrame *avcodec_alloc_frame(void) |
|
{ |
|
AVFrame *frame = av_malloc(sizeof(AVFrame)); |
|
|
|
if (frame == NULL) |
|
return NULL; |
|
|
|
frame->extended_data = NULL; |
|
avcodec_get_frame_defaults(frame); |
|
|
|
return frame; |
|
} |
|
|
|
void avcodec_free_frame(AVFrame **frame) |
|
{ |
|
AVFrame *f; |
|
|
|
if (!frame || !*frame) |
|
return; |
|
|
|
f = *frame; |
|
|
|
if (f->extended_data != f->data) |
|
av_freep(&f->extended_data); |
|
|
|
av_freep(frame); |
|
} |
|
|
|
#define MAKE_ACCESSORS(str, name, type, field) \ |
|
type av_##name##_get_##field(const str *s) { return s->field; } \ |
|
void av_##name##_set_##field(str *s, type v) { s->field = v; } |
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp) |
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration) |
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos) |
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout) |
|
MAKE_ACCESSORS(AVFrame, frame, int, channels) |
|
MAKE_ACCESSORS(AVFrame, frame, int, sample_rate) |
|
MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata) |
|
MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags) |
|
|
|
MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase) |
|
MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor) |
|
|
|
static void avcodec_get_subtitle_defaults(AVSubtitle *sub) |
|
{ |
|
memset(sub, 0, sizeof(*sub)); |
|
sub->pts = AV_NOPTS_VALUE; |
|
} |
|
|
|
static int get_bit_rate(AVCodecContext *ctx) |
|
{ |
|
int bit_rate; |
|
int bits_per_sample; |
|
|
|
switch (ctx->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
case AVMEDIA_TYPE_DATA: |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
case AVMEDIA_TYPE_ATTACHMENT: |
|
bit_rate = ctx->bit_rate; |
|
break; |
|
case AVMEDIA_TYPE_AUDIO: |
|
bits_per_sample = av_get_bits_per_sample(ctx->codec_id); |
|
bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate; |
|
break; |
|
default: |
|
bit_rate = 0; |
|
break; |
|
} |
|
return bit_rate; |
|
} |
|
|
|
#if FF_API_AVCODEC_OPEN |
|
int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec) |
|
{ |
|
return avcodec_open2(avctx, codec, NULL); |
|
} |
|
#endif |
|
|
|
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
|
{ |
|
int ret = 0; |
|
AVDictionary *tmp = NULL; |
|
|
|
if (avcodec_is_open(avctx)) |
|
return 0; |
|
|
|
if ((!codec && !avctx->codec)) { |
|
av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2().\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
if ((codec && avctx->codec && codec != avctx->codec)) { |
|
av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, " |
|
"but %s passed to avcodec_open2().\n", avctx->codec->name, codec->name); |
|
return AVERROR(EINVAL); |
|
} |
|
if (!codec) |
|
codec = avctx->codec; |
|
|
|
if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE) |
|
return AVERROR(EINVAL); |
|
|
|
if (options) |
|
av_dict_copy(&tmp, *options, 0); |
|
|
|
/* If there is a user-supplied mutex locking routine, call it. */ |
|
if (ff_lockmgr_cb) { |
|
if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) |
|
return -1; |
|
} |
|
|
|
entangled_thread_counter++; |
|
if (entangled_thread_counter != 1) { |
|
av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n"); |
|
ret = -1; |
|
goto end; |
|
} |
|
|
|
avctx->internal = av_mallocz(sizeof(AVCodecInternal)); |
|
if (!avctx->internal) { |
|
ret = AVERROR(ENOMEM); |
|
goto end; |
|
} |
|
|
|
if (codec->priv_data_size > 0) { |
|
if (!avctx->priv_data) { |
|
avctx->priv_data = av_mallocz(codec->priv_data_size); |
|
if (!avctx->priv_data) { |
|
ret = AVERROR(ENOMEM); |
|
goto end; |
|
} |
|
if (codec->priv_class) { |
|
*(const AVClass **)avctx->priv_data = codec->priv_class; |
|
av_opt_set_defaults(avctx->priv_data); |
|
} |
|
} |
|
if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0) |
|
goto free_and_end; |
|
} else { |
|
avctx->priv_data = NULL; |
|
} |
|
if ((ret = av_opt_set_dict(avctx, &tmp)) < 0) |
|
goto free_and_end; |
|
|
|
if (codec->capabilities & CODEC_CAP_EXPERIMENTAL) |
|
if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
|
av_log(avctx, AV_LOG_ERROR, "Codec is experimental but experimental codecs are not enabled, try -strict -2\n"); |
|
ret = -1; |
|
goto free_and_end; |
|
} |
|
|
|
//We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions |
|
if (!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == AV_CODEC_ID_H264)){ |
|
|
|
if (avctx->coded_width && avctx->coded_height) |
|
avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); |
|
else if (avctx->width && avctx->height) |
|
avcodec_set_dimensions(avctx, avctx->width, avctx->height); |
|
} |
|
|
|
if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height) |
|
&& ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0 |
|
|| av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) { |
|
av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n"); |
|
avcodec_set_dimensions(avctx, 0, 0); |
|
} |
|
|
|
/* if the decoder init function was already called previously, |
|
* free the already allocated subtitle_header before overwriting it */ |
|
if (av_codec_is_decoder(codec)) |
|
av_freep(&avctx->subtitle_header); |
|
|
|
#define SANE_NB_CHANNELS 128U |
|
if (avctx->channels > SANE_NB_CHANNELS) { |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
|
|
avctx->codec = codec; |
|
if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && |
|
avctx->codec_id == AV_CODEC_ID_NONE) { |
|
avctx->codec_type = codec->type; |
|
avctx->codec_id = codec->id; |
|
} |
|
if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type |
|
&& avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) { |
|
av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n"); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
avctx->frame_number = 0; |
|
avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id); |
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && |
|
(!avctx->time_base.num || !avctx->time_base.den)) { |
|
avctx->time_base.num = 1; |
|
avctx->time_base.den = avctx->sample_rate; |
|
} |
|
|
|
if (!HAVE_THREADS) |
|
av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n"); |
|
|
|
if (HAVE_THREADS) { |
|
entangled_thread_counter--; //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem |
|
ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL); |
|
entangled_thread_counter++; |
|
if (ret < 0) |
|
goto free_and_end; |
|
} |
|
|
|
if (HAVE_THREADS && !avctx->thread_opaque |
|
&& !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) { |
|
ret = ff_thread_init(avctx); |
|
if (ret < 0) { |
|
goto free_and_end; |
|
} |
|
} |
|
if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS)) |
|
avctx->thread_count = 1; |
|
|
|
if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) { |
|
av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n", |
|
avctx->codec->max_lowres); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
|
|
if (av_codec_is_encoder(avctx->codec)) { |
|
int i; |
|
if (avctx->codec->sample_fmts) { |
|
for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) { |
|
if (avctx->sample_fmt == avctx->codec->sample_fmts[i]) |
|
break; |
|
if (avctx->channels == 1 && |
|
av_get_planar_sample_fmt(avctx->sample_fmt) == |
|
av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) { |
|
avctx->sample_fmt = avctx->codec->sample_fmts[i]; |
|
break; |
|
} |
|
} |
|
if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) { |
|
av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n"); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
} |
|
if (avctx->codec->pix_fmts) { |
|
for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++) |
|
if (avctx->pix_fmt == avctx->codec->pix_fmts[i]) |
|
break; |
|
if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE |
|
&& !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG) |
|
&& avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) { |
|
av_log(avctx, AV_LOG_ERROR, "Specified pix_fmt is not supported\n"); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
} |
|
if (avctx->codec->supported_samplerates) { |
|
for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++) |
|
if (avctx->sample_rate == avctx->codec->supported_samplerates[i]) |
|
break; |
|
if (avctx->codec->supported_samplerates[i] == 0) { |
|
av_log(avctx, AV_LOG_ERROR, "Specified sample_rate is not supported\n"); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
} |
|
if (avctx->codec->channel_layouts) { |
|
if (!avctx->channel_layout) { |
|
av_log(avctx, AV_LOG_WARNING, "channel_layout not specified\n"); |
|
} else { |
|
for (i = 0; avctx->codec->channel_layouts[i] != 0; i++) |
|
if (avctx->channel_layout == avctx->codec->channel_layouts[i]) |
|
break; |
|
if (avctx->codec->channel_layouts[i] == 0) { |
|
av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n"); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
} |
|
} |
|
if (avctx->channel_layout && avctx->channels) { |
|
if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) { |
|
av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n"); |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
} else if (avctx->channel_layout) { |
|
avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
|
} |
|
} |
|
|
|
avctx->pts_correction_num_faulty_pts = |
|
avctx->pts_correction_num_faulty_dts = 0; |
|
avctx->pts_correction_last_pts = |
|
avctx->pts_correction_last_dts = INT64_MIN; |
|
|
|
if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) |
|
|| avctx->internal->frame_thread_encoder)) { |
|
ret = avctx->codec->init(avctx); |
|
if (ret < 0) { |
|
goto free_and_end; |
|
} |
|
} |
|
|
|
ret=0; |
|
|
|
if (av_codec_is_decoder(avctx->codec)) { |
|
if (!avctx->bit_rate) |
|
avctx->bit_rate = get_bit_rate(avctx); |
|
/* validate channel layout from the decoder */ |
|
if (avctx->channel_layout) { |
|
int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
|
if (!avctx->channels) |
|
avctx->channels = channels; |
|
else if (channels != avctx->channels) { |
|
av_log(avctx, AV_LOG_WARNING, |
|
"channel layout does not match number of channels\n"); |
|
avctx->channel_layout = 0; |
|
} |
|
} |
|
} |
|
end: |
|
entangled_thread_counter--; |
|
|
|
/* Release any user-supplied mutex. */ |
|
if (ff_lockmgr_cb) { |
|
(*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE); |
|
} |
|
if (options) { |
|
av_dict_free(options); |
|
*options = tmp; |
|
} |
|
|
|
return ret; |
|
free_and_end: |
|
av_dict_free(&tmp); |
|
av_freep(&avctx->priv_data); |
|
av_freep(&avctx->internal); |
|
avctx->codec = NULL; |
|
goto end; |
|
} |
|
|
|
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size) |
|
{ |
|
if (size < 0 || avpkt->size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { |
|
av_log(avctx, AV_LOG_ERROR, "Size %d invalid\n", size); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (avctx) { |
|
av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer); |
|
if (!avpkt->data || avpkt->size < size) { |
|
av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size); |
|
avpkt->data = avctx->internal->byte_buffer; |
|
avpkt->size = avctx->internal->byte_buffer_size; |
|
avpkt->destruct = NULL; |
|
} |
|
} |
|
|
|
if (avpkt->data) { |
|
void *destruct = avpkt->destruct; |
|
|
|
if (avpkt->size < size) { |
|
av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %d)\n", avpkt->size, size); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
av_init_packet(avpkt); |
|
avpkt->destruct = destruct; |
|
avpkt->size = size; |
|
return 0; |
|
} else { |
|
int ret = av_new_packet(avpkt, size); |
|
if (ret < 0) |
|
av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", size); |
|
return ret; |
|
} |
|
} |
|
|
|
int ff_alloc_packet(AVPacket *avpkt, int size) |
|
{ |
|
return ff_alloc_packet2(NULL, avpkt, size); |
|
} |
|
|
|
/** |
|
* Pad last frame with silence. |
|
*/ |
|
static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) |
|
{ |
|
AVFrame *frame = NULL; |
|
uint8_t *buf = NULL; |
|
int ret; |
|
|
|
if (!(frame = avcodec_alloc_frame())) |
|
return AVERROR(ENOMEM); |
|
*frame = *src; |
|
|
|
if ((ret = av_samples_get_buffer_size(&frame->linesize[0], s->channels, |
|
s->frame_size, s->sample_fmt, 0)) < 0) |
|
goto fail; |
|
|
|
if (!(buf = av_malloc(ret))) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
frame->nb_samples = s->frame_size; |
|
if ((ret = avcodec_fill_audio_frame(frame, s->channels, s->sample_fmt, |
|
buf, ret, 0)) < 0) |
|
goto fail; |
|
if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0, |
|
src->nb_samples, s->channels, s->sample_fmt)) < 0) |
|
goto fail; |
|
if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples, |
|
frame->nb_samples - src->nb_samples, |
|
s->channels, s->sample_fmt)) < 0) |
|
goto fail; |
|
|
|
*dst = frame; |
|
|
|
return 0; |
|
|
|
fail: |
|
if (frame->extended_data != frame->data) |
|
av_freep(&frame->extended_data); |
|
av_freep(&buf); |
|
av_freep(&frame); |
|
return ret; |
|
} |
|
|
|
int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, |
|
AVPacket *avpkt, |
|
const AVFrame *frame, |
|
int *got_packet_ptr) |
|
{ |
|
AVFrame tmp; |
|
AVFrame *padded_frame = NULL; |
|
int ret; |
|
AVPacket user_pkt = *avpkt; |
|
int needs_realloc = !user_pkt.data; |
|
|
|
*got_packet_ptr = 0; |
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) { |
|
av_free_packet(avpkt); |
|
av_init_packet(avpkt); |
|
return 0; |
|
} |
|
|
|
/* ensure that extended_data is properly set */ |
|
if (frame && !frame->extended_data) { |
|
if (av_sample_fmt_is_planar(avctx->sample_fmt) && |
|
avctx->channels > AV_NUM_DATA_POINTERS) { |
|
av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, " |
|
"with more than %d channels, but extended_data is not set.\n", |
|
AV_NUM_DATA_POINTERS); |
|
return AVERROR(EINVAL); |
|
} |
|
av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n"); |
|
|
|
tmp = *frame; |
|
tmp.extended_data = tmp.data; |
|
frame = &tmp; |
|
} |
|
|
|
/* check for valid frame size */ |
|
if (frame) { |
|
if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) { |
|
if (frame->nb_samples > avctx->frame_size) { |
|
av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
} else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) { |
|
if (frame->nb_samples < avctx->frame_size && |
|
!avctx->internal->last_audio_frame) { |
|
ret = pad_last_frame(avctx, &padded_frame, frame); |
|
if (ret < 0) |
|
return ret; |
|
|
|
frame = padded_frame; |
|
avctx->internal->last_audio_frame = 1; |
|
} |
|
|
|
if (frame->nb_samples != avctx->frame_size) { |
|
av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size); |
|
ret = AVERROR(EINVAL); |
|
goto end; |
|
} |
|
} |
|
} |
|
|
|
ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); |
|
if (!ret) { |
|
if (*got_packet_ptr) { |
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) { |
|
if (avpkt->pts == AV_NOPTS_VALUE) |
|
avpkt->pts = frame->pts; |
|
if (!avpkt->duration) |
|
avpkt->duration = ff_samples_to_time_base(avctx, |
|
frame->nb_samples); |
|
} |
|
avpkt->dts = avpkt->pts; |
|
} else { |
|
avpkt->size = 0; |
|
} |
|
} |
|
if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { |
|
needs_realloc = 0; |
|
if (user_pkt.data) { |
|
if (user_pkt.size >= avpkt->size) { |
|
memcpy(user_pkt.data, avpkt->data, avpkt->size); |
|
} else { |
|
av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); |
|
avpkt->size = user_pkt.size; |
|
ret = -1; |
|
} |
|
avpkt->data = user_pkt.data; |
|
avpkt->destruct = user_pkt.destruct; |
|
} else { |
|
if (av_dup_packet(avpkt) < 0) { |
|
ret = AVERROR(ENOMEM); |
|
} |
|
} |
|
} |
|
|
|
if (!ret) { |
|
if (needs_realloc && avpkt->data) { |
|
uint8_t *new_data = av_realloc(avpkt->data, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE); |
|
if (new_data) |
|
avpkt->data = new_data; |
|
} |
|
|
|
avctx->frame_number++; |
|
} |
|
|
|
if (ret < 0 || !*got_packet_ptr) { |
|
av_free_packet(avpkt); |
|
av_init_packet(avpkt); |
|
goto end; |
|
} |
|
|
|
/* NOTE: if we add any audio encoders which output non-keyframe packets, |
|
* this needs to be moved to the encoders, but for now we can do it |
|
* here to simplify things */ |
|
avpkt->flags |= AV_PKT_FLAG_KEY; |
|
|
|
end: |
|
if (padded_frame) { |
|
av_freep(&padded_frame->data[0]); |
|
if (padded_frame->extended_data != padded_frame->data) |
|
av_freep(&padded_frame->extended_data); |
|
av_freep(&padded_frame); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
#if FF_API_OLD_DECODE_AUDIO |
|
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, |
|
uint8_t *buf, int buf_size, |
|
const short *samples) |
|
{ |
|
AVPacket pkt; |
|
AVFrame frame0; |
|
AVFrame *frame; |
|
int ret, samples_size, got_packet; |
|
|
|
av_init_packet(&pkt); |
|
pkt.data = buf; |
|
pkt.size = buf_size; |
|
|
|
if (samples) { |
|
frame = &frame0; |
|
avcodec_get_frame_defaults(frame); |
|
|
|
if (avctx->frame_size) { |
|
frame->nb_samples = avctx->frame_size; |
|
} else { |
|
/* if frame_size is not set, the number of samples must be |
|
* calculated from the buffer size */ |
|
int64_t nb_samples; |
|
if (!av_get_bits_per_sample(avctx->codec_id)) { |
|
av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not " |
|
"support this codec\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
nb_samples = (int64_t)buf_size * 8 / |
|
(av_get_bits_per_sample(avctx->codec_id) * |
|
avctx->channels); |
|
if (nb_samples >= INT_MAX) |
|
return AVERROR(EINVAL); |
|
frame->nb_samples = nb_samples; |
|
} |
|
|
|
/* it is assumed that the samples buffer is large enough based on the |
|
* relevant parameters */ |
|
samples_size = av_samples_get_buffer_size(NULL, avctx->channels, |
|
frame->nb_samples, |
|
avctx->sample_fmt, 1); |
|
if ((ret = avcodec_fill_audio_frame(frame, avctx->channels, |
|
avctx->sample_fmt, |
|
(const uint8_t *)samples, |
|
samples_size, 1))) |
|
return ret; |
|
|
|
/* fabricate frame pts from sample count. |
|
* this is needed because the avcodec_encode_audio() API does not have |
|
* a way for the user to provide pts */ |
|
if (avctx->sample_rate && avctx->time_base.num) |
|
frame->pts = ff_samples_to_time_base(avctx, |
|
avctx->internal->sample_count); |
|
else |
|
frame->pts = AV_NOPTS_VALUE; |
|
avctx->internal->sample_count += frame->nb_samples; |
|
} else { |
|
frame = NULL; |
|
} |
|
|
|
got_packet = 0; |
|
ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet); |
|
if (!ret && got_packet && avctx->coded_frame) { |
|
avctx->coded_frame->pts = pkt.pts; |
|
avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); |
|
} |
|
/* free any side data since we cannot return it */ |
|
ff_packet_free_side_data(&pkt); |
|
|
|
if (frame && frame->extended_data != frame->data) |
|
av_freep(&frame->extended_data); |
|
|
|
return ret ? ret : pkt.size; |
|
} |
|
|
|
#endif |
|
|
|
#if FF_API_OLD_ENCODE_VIDEO |
|
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
|
const AVFrame *pict) |
|
{ |
|
AVPacket pkt; |
|
int ret, got_packet = 0; |
|
|
|
if (buf_size < FF_MIN_BUFFER_SIZE) { |
|
av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n"); |
|
return -1; |
|
} |
|
|
|
av_init_packet(&pkt); |
|
pkt.data = buf; |
|
pkt.size = buf_size; |
|
|
|
ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet); |
|
if (!ret && got_packet && avctx->coded_frame) { |
|
avctx->coded_frame->pts = pkt.pts; |
|
avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); |
|
} |
|
|
|
/* free any side data since we cannot return it */ |
|
if (pkt.side_data_elems > 0) { |
|
int i; |
|
for (i = 0; i < pkt.side_data_elems; i++) |
|
av_free(pkt.side_data[i].data); |
|
av_freep(&pkt.side_data); |
|
pkt.side_data_elems = 0; |
|
} |
|
|
|
return ret ? ret : pkt.size; |
|
} |
|
|
|
#endif |
|
|
|
int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, |
|
AVPacket *avpkt, |
|
const AVFrame *frame, |
|
int *got_packet_ptr) |
|
{ |
|
int ret; |
|
AVPacket user_pkt = *avpkt; |
|
int needs_realloc = !user_pkt.data; |
|
|
|
*got_packet_ptr = 0; |
|
|
|
if(HAVE_THREADS && avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME)) |
|
return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr); |
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) { |
|
av_free_packet(avpkt); |
|
av_init_packet(avpkt); |
|
avpkt->size = 0; |
|
return 0; |
|
} |
|
|
|
if (av_image_check_size(avctx->width, avctx->height, 0, avctx)) |
|
return AVERROR(EINVAL); |
|
|
|
av_assert0(avctx->codec->encode2); |
|
|
|
ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); |
|
av_assert0(ret <= 0); |
|
|
|
if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { |
|
needs_realloc = 0; |
|
if (user_pkt.data) { |
|
if (user_pkt.size >= avpkt->size) { |
|
memcpy(user_pkt.data, avpkt->data, avpkt->size); |
|
} else { |
|
av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); |
|
avpkt->size = user_pkt.size; |
|
ret = -1; |
|
} |
|
avpkt->data = user_pkt.data; |
|
avpkt->destruct = user_pkt.destruct; |
|
} else { |
|
if (av_dup_packet(avpkt) < 0) { |
|
ret = AVERROR(ENOMEM); |
|
} |
|
} |
|
} |
|
|
|
if (!ret) { |
|
if (!*got_packet_ptr) |
|
avpkt->size = 0; |
|
else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) |
|
avpkt->pts = avpkt->dts = frame->pts; |
|
|
|
if (needs_realloc && avpkt->data && |
|
avpkt->destruct == av_destruct_packet) { |
|
uint8_t *new_data = av_realloc(avpkt->data, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE); |
|
if (new_data) |
|
avpkt->data = new_data; |
|
} |
|
|
|
avctx->frame_number++; |
|
} |
|
|
|
if (ret < 0 || !*got_packet_ptr) |
|
av_free_packet(avpkt); |
|
|
|
emms_c(); |
|
return ret; |
|
} |
|
|
|
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
|
const AVSubtitle *sub) |
|
{ |
|
int ret; |
|
if (sub->start_display_time) { |
|
av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n"); |
|
return -1; |
|
} |
|
|
|
ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub); |
|
avctx->frame_number++; |
|
return ret; |
|
} |
|
|
|
/** |
|
* Attempt to guess proper monotonic timestamps for decoded video frames |
|
* which might have incorrect times. Input timestamps may wrap around, in |
|
* which case the output will as well. |
|
* |
|
* @param pts the pts field of the decoded AVPacket, as passed through |
|
* AVFrame.pkt_pts |
|
* @param dts the dts field of the decoded AVPacket |
|
* @return one of the input values, may be AV_NOPTS_VALUE |
|
*/ |
|
static int64_t guess_correct_pts(AVCodecContext *ctx, |
|
int64_t reordered_pts, int64_t dts) |
|
{ |
|
int64_t pts = AV_NOPTS_VALUE; |
|
|
|
if (dts != AV_NOPTS_VALUE) { |
|
ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts; |
|
ctx->pts_correction_last_dts = dts; |
|
} |
|
if (reordered_pts != AV_NOPTS_VALUE) { |
|
ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts; |
|
ctx->pts_correction_last_pts = reordered_pts; |
|
} |
|
if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE) |
|
&& reordered_pts != AV_NOPTS_VALUE) |
|
pts = reordered_pts; |
|
else |
|
pts = dts; |
|
|
|
return pts; |
|
} |
|
|
|
static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt) |
|
{ |
|
int size = 0; |
|
const uint8_t *data; |
|
uint32_t flags; |
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) |
|
return; |
|
|
|
data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); |
|
if (!data || size < 4) |
|
return; |
|
flags = bytestream_get_le32(&data); |
|
size -= 4; |
|
if (size < 4) /* Required for any of the changes */ |
|
return; |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { |
|
avctx->channels = bytestream_get_le32(&data); |
|
size -= 4; |
|
} |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { |
|
if (size < 8) |
|
return; |
|
avctx->channel_layout = bytestream_get_le64(&data); |
|
size -= 8; |
|
} |
|
if (size < 4) |
|
return; |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { |
|
avctx->sample_rate = bytestream_get_le32(&data); |
|
size -= 4; |
|
} |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { |
|
if (size < 8) |
|
return; |
|
avctx->width = bytestream_get_le32(&data); |
|
avctx->height = bytestream_get_le32(&data); |
|
avcodec_set_dimensions(avctx, avctx->width, avctx->height); |
|
size -= 8; |
|
} |
|
} |
|
|
|
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, |
|
int *got_picture_ptr, |
|
const AVPacket *avpkt) |
|
{ |
|
int ret; |
|
// copy to ensure we do not change avpkt |
|
AVPacket tmp = *avpkt; |
|
|
|
if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) { |
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
*got_picture_ptr = 0; |
|
if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) |
|
return AVERROR(EINVAL); |
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { |
|
int did_split = av_packet_split_side_data(&tmp); |
|
apply_param_change(avctx, &tmp); |
|
avctx->pkt = &tmp; |
|
if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
|
ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, |
|
&tmp); |
|
else { |
|
ret = avctx->codec->decode(avctx, picture, got_picture_ptr, |
|
&tmp); |
|
picture->pkt_dts = avpkt->dts; |
|
|
|
if(!avctx->has_b_frames){ |
|
picture->pkt_pos = avpkt->pos; |
|
} |
|
//FIXME these should be under if(!avctx->has_b_frames) |
|
if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio; |
|
if (!picture->width) picture->width = avctx->width; |
|
if (!picture->height) picture->height = avctx->height; |
|
if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt; |
|
} |
|
|
|
emms_c(); //needed to avoid an emms_c() call before every return; |
|
|
|
avctx->pkt = NULL; |
|
if (did_split) { |
|
ff_packet_free_side_data(&tmp); |
|
if(ret == tmp.size) |
|
ret = avpkt->size; |
|
} |
|
|
|
if (*got_picture_ptr){ |
|
avctx->frame_number++; |
|
picture->best_effort_timestamp = guess_correct_pts(avctx, |
|
picture->pkt_pts, |
|
picture->pkt_dts); |
|
} |
|
} else |
|
ret = 0; |
|
|
|
/* many decoders assign whole AVFrames, thus overwriting extended_data; |
|
* make sure it's set correctly */ |
|
picture->extended_data = picture->data; |
|
|
|
return ret; |
|
} |
|
|
|
#if FF_API_OLD_DECODE_AUDIO |
|
int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples, |
|
int *frame_size_ptr, |
|
AVPacket *avpkt) |
|
{ |
|
AVFrame frame; |
|
int ret, got_frame = 0; |
|
|
|
if (avctx->get_buffer != avcodec_default_get_buffer) { |
|
av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with" |
|
"avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n"); |
|
av_log(avctx, AV_LOG_ERROR, "Please port your application to " |
|
"avcodec_decode_audio4()\n"); |
|
avctx->get_buffer = avcodec_default_get_buffer; |
|
avctx->release_buffer = avcodec_default_release_buffer; |
|
} |
|
|
|
ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt); |
|
|
|
if (ret >= 0 && got_frame) { |
|
int ch, plane_size; |
|
int planar = av_sample_fmt_is_planar(avctx->sample_fmt); |
|
int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels, |
|
frame.nb_samples, |
|
avctx->sample_fmt, 1); |
|
if (*frame_size_ptr < data_size) { |
|
av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for " |
|
"the current frame (%d < %d)\n", *frame_size_ptr, data_size); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
memcpy(samples, frame.extended_data[0], plane_size); |
|
|
|
if (planar && avctx->channels > 1) { |
|
uint8_t *out = ((uint8_t *)samples) + plane_size; |
|
for (ch = 1; ch < avctx->channels; ch++) { |
|
memcpy(out, frame.extended_data[ch], plane_size); |
|
out += plane_size; |
|
} |
|
} |
|
*frame_size_ptr = data_size; |
|
} else { |
|
*frame_size_ptr = 0; |
|
} |
|
return ret; |
|
} |
|
|
|
#endif |
|
|
|
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, |
|
AVFrame *frame, |
|
int *got_frame_ptr, |
|
const AVPacket *avpkt) |
|
{ |
|
int planar, channels; |
|
int ret = 0; |
|
|
|
*got_frame_ptr = 0; |
|
|
|
if (!avpkt->data && avpkt->size) { |
|
av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) { |
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) { |
|
uint8_t *side; |
|
int side_size; |
|
// copy to ensure we do not change avpkt |
|
AVPacket tmp = *avpkt; |
|
int did_split = av_packet_split_side_data(&tmp); |
|
apply_param_change(avctx, &tmp); |
|
|
|
avctx->pkt = &tmp; |
|
ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp); |
|
if (ret >= 0 && *got_frame_ptr) { |
|
avctx->frame_number++; |
|
frame->pkt_dts = avpkt->dts; |
|
frame->best_effort_timestamp = guess_correct_pts(avctx, |
|
frame->pkt_pts, |
|
frame->pkt_dts); |
|
if (frame->format == AV_SAMPLE_FMT_NONE) |
|
frame->format = avctx->sample_fmt; |
|
if (!frame->channel_layout) |
|
frame->channel_layout = avctx->channel_layout; |
|
if (!frame->channels) |
|
frame->channels = avctx->channels; |
|
if (!frame->sample_rate) |
|
frame->sample_rate = avctx->sample_rate; |
|
} |
|
|
|
side= av_packet_get_side_data(avctx->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size); |
|
if(side && side_size>=10) { |
|
avctx->internal->skip_samples = AV_RL32(side); |
|
av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n", |
|
avctx->internal->skip_samples); |
|
} |
|
if (avctx->internal->skip_samples) { |
|
if(frame->nb_samples <= avctx->internal->skip_samples){ |
|
*got_frame_ptr = 0; |
|
avctx->internal->skip_samples -= frame->nb_samples; |
|
av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n", |
|
avctx->internal->skip_samples); |
|
} else { |
|
av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples, |
|
frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format); |
|
if(avctx->pkt_timebase.num && avctx->sample_rate) { |
|
int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples, |
|
(AVRational){1, avctx->sample_rate}, |
|
avctx->pkt_timebase); |
|
if(frame->pkt_pts!=AV_NOPTS_VALUE) |
|
frame->pkt_pts += diff_ts; |
|
if(frame->pkt_dts!=AV_NOPTS_VALUE) |
|
frame->pkt_dts += diff_ts; |
|
if (frame->pkt_duration >= diff_ts) |
|
frame->pkt_duration -= diff_ts; |
|
} else { |
|
av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n"); |
|
} |
|
av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n", |
|
avctx->internal->skip_samples, frame->nb_samples); |
|
frame->nb_samples -= avctx->internal->skip_samples; |
|
avctx->internal->skip_samples = 0; |
|
} |
|
} |
|
|
|
avctx->pkt = NULL; |
|
if (did_split) { |
|
ff_packet_free_side_data(&tmp); |
|
if(ret == tmp.size) |
|
ret = avpkt->size; |
|
} |
|
} |
|
|
|
/* many decoders assign whole AVFrames, thus overwriting extended_data; |
|
* make sure it's set correctly; assume decoders that actually use |
|
* extended_data are doing it correctly */ |
|
planar = av_sample_fmt_is_planar(frame->format); |
|
channels = av_get_channel_layout_nb_channels(frame->channel_layout); |
|
if (!(planar && channels > AV_NUM_DATA_POINTERS)) |
|
frame->extended_data = frame->data; |
|
|
|
return ret; |
|
} |
|
|
|
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, |
|
int *got_sub_ptr, |
|
AVPacket *avpkt) |
|
{ |
|
int ret; |
|
|
|
if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) { |
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
avctx->pkt = avpkt; |
|
*got_sub_ptr = 0; |
|
avcodec_get_subtitle_defaults(sub); |
|
if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE) |
|
sub->pts = av_rescale_q(avpkt->pts, |
|
avctx->pkt_timebase, AV_TIME_BASE_Q); |
|
ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt); |
|
if (*got_sub_ptr) |
|
avctx->frame_number++; |
|
return ret; |
|
} |
|
|
|
void avsubtitle_free(AVSubtitle *sub) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < sub->num_rects; i++) { |
|
av_freep(&sub->rects[i]->pict.data[0]); |
|
av_freep(&sub->rects[i]->pict.data[1]); |
|
av_freep(&sub->rects[i]->pict.data[2]); |
|
av_freep(&sub->rects[i]->pict.data[3]); |
|
av_freep(&sub->rects[i]->text); |
|
av_freep(&sub->rects[i]->ass); |
|
av_freep(&sub->rects[i]); |
|
} |
|
|
|
av_freep(&sub->rects); |
|
|
|
memset(sub, 0, sizeof(AVSubtitle)); |
|
} |
|
|
|
av_cold int avcodec_close(AVCodecContext *avctx) |
|
{ |
|
/* If there is a user-supplied mutex locking routine, call it. */ |
|
if (ff_lockmgr_cb) { |
|
if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) |
|
return -1; |
|
} |
|
|
|
entangled_thread_counter++; |
|
if (entangled_thread_counter != 1) { |
|
av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n"); |
|
entangled_thread_counter--; |
|
return -1; |
|
} |
|
|
|
if (avcodec_is_open(avctx)) { |
|
if (HAVE_THREADS && avctx->internal->frame_thread_encoder && avctx->thread_count > 1) { |
|
entangled_thread_counter --; |
|
ff_frame_thread_encoder_free(avctx); |
|
entangled_thread_counter ++; |
|
} |
|
if (HAVE_THREADS && avctx->thread_opaque) |
|
ff_thread_free(avctx); |
|
if (avctx->codec && avctx->codec->close) |
|
avctx->codec->close(avctx); |
|
avcodec_default_free_buffers(avctx); |
|
avctx->coded_frame = NULL; |
|
avctx->internal->byte_buffer_size = 0; |
|
av_freep(&avctx->internal->byte_buffer); |
|
av_freep(&avctx->internal); |
|
} |
|
|
|
if (avctx->priv_data && avctx->codec && avctx->codec->priv_class) |
|
av_opt_free(avctx->priv_data); |
|
av_opt_free(avctx); |
|
av_freep(&avctx->priv_data); |
|
if (av_codec_is_encoder(avctx->codec)) |
|
av_freep(&avctx->extradata); |
|
avctx->codec = NULL; |
|
avctx->active_thread_type = 0; |
|
entangled_thread_counter--; |
|
|
|
/* Release any user-supplied mutex. */ |
|
if (ff_lockmgr_cb) { |
|
(*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE); |
|
} |
|
return 0; |
|
} |
|
|
|
static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id) |
|
{ |
|
switch(id){ |
|
//This is for future deprecatec codec ids, its empty since |
|
//last major bump but will fill up again over time, please don't remove it |
|
// case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO; |
|
case AV_CODEC_ID_OPUS_DEPRECATED: return AV_CODEC_ID_OPUS; |
|
default : return id; |
|
} |
|
} |
|
|
|
AVCodec *avcodec_find_encoder(enum AVCodecID id) |
|
{ |
|
AVCodec *p, *experimental = NULL; |
|
p = first_avcodec; |
|
id= remap_deprecated_codec_id(id); |
|
while (p) { |
|
if (av_codec_is_encoder(p) && p->id == id) { |
|
if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) { |
|
experimental = p; |
|
} else |
|
return p; |
|
} |
|
p = p->next; |
|
} |
|
return experimental; |
|
} |
|
|
|
AVCodec *avcodec_find_encoder_by_name(const char *name) |
|
{ |
|
AVCodec *p; |
|
if (!name) |
|
return NULL; |
|
p = first_avcodec; |
|
while (p) { |
|
if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0) |
|
return p; |
|
p = p->next; |
|
} |
|
return NULL; |
|
} |
|
|
|
AVCodec *avcodec_find_decoder(enum AVCodecID id) |
|
{ |
|
AVCodec *p, *experimental=NULL; |
|
p = first_avcodec; |
|
id= remap_deprecated_codec_id(id); |
|
while (p) { |
|
if (av_codec_is_decoder(p) && p->id == id) { |
|
if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) { |
|
experimental = p; |
|
} else |
|
return p; |
|
} |
|
p = p->next; |
|
} |
|
return experimental; |
|
} |
|
|
|
AVCodec *avcodec_find_decoder_by_name(const char *name) |
|
{ |
|
AVCodec *p; |
|
if (!name) |
|
return NULL; |
|
p = first_avcodec; |
|
while (p) { |
|
if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0) |
|
return p; |
|
p = p->next; |
|
} |
|
return NULL; |
|
} |
|
|
|
const char *avcodec_get_name(enum AVCodecID id) |
|
{ |
|
const AVCodecDescriptor *cd; |
|
AVCodec *codec; |
|
|
|
if (id == AV_CODEC_ID_NONE) |
|
return "none"; |
|
cd = avcodec_descriptor_get(id); |
|
if (cd) |
|
return cd->name; |
|
av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id); |
|
codec = avcodec_find_decoder(id); |
|
if (codec) |
|
return codec->name; |
|
codec = avcodec_find_encoder(id); |
|
if (codec) |
|
return codec->name; |
|
return "unknown_codec"; |
|
} |
|
|
|
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag) |
|
{ |
|
int i, len, ret = 0; |
|
|
|
#define IS_PRINT(x) \ |
|
(((x) >= '0' && (x) <= '9') || \ |
|
((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \ |
|
((x) == '.' || (x) == ' ' || (x) == '-')) |
|
|
|
for (i = 0; i < 4; i++) { |
|
len = snprintf(buf, buf_size, |
|
IS_PRINT(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF); |
|
buf += len; |
|
buf_size = buf_size > len ? buf_size - len : 0; |
|
ret += len; |
|
codec_tag >>= 8; |
|
} |
|
return ret; |
|
} |
|
|
|
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) |
|
{ |
|
const char *codec_type; |
|
const char *codec_name; |
|
const char *profile = NULL; |
|
const AVCodec *p; |
|
int bitrate; |
|
AVRational display_aspect_ratio; |
|
|
|
if (!buf || buf_size <= 0) |
|
return; |
|
codec_type = av_get_media_type_string(enc->codec_type); |
|
codec_name = avcodec_get_name(enc->codec_id); |
|
if (enc->profile != FF_PROFILE_UNKNOWN) { |
|
if (enc->codec) |
|
p = enc->codec; |
|
else |
|
p = encode ? avcodec_find_encoder(enc->codec_id) : |
|
avcodec_find_decoder(enc->codec_id); |
|
if (p) |
|
profile = av_get_profile_name(p, enc->profile); |
|
} |
|
|
|
snprintf(buf, buf_size, "%s: %s%s", codec_type ? codec_type : "unknown", |
|
codec_name, enc->mb_decision ? " (hq)" : ""); |
|
buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */ |
|
if (profile) |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile); |
|
if (enc->codec_tag) { |
|
char tag_buf[32]; |
|
av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag); |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
" (%s / 0x%04X)", tag_buf, enc->codec_tag); |
|
} |
|
|
|
switch (enc->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
if (enc->pix_fmt != AV_PIX_FMT_NONE) { |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", %s", |
|
av_get_pix_fmt_name(enc->pix_fmt)); |
|
} |
|
if (enc->width) { |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", %dx%d", |
|
enc->width, enc->height); |
|
if (enc->sample_aspect_ratio.num) { |
|
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, |
|
enc->width * enc->sample_aspect_ratio.num, |
|
enc->height * enc->sample_aspect_ratio.den, |
|
1024 * 1024); |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
" [SAR %d:%d DAR %d:%d]", |
|
enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den, |
|
display_aspect_ratio.num, display_aspect_ratio.den); |
|
} |
|
if (av_log_get_level() >= AV_LOG_DEBUG) { |
|
int g = av_gcd(enc->time_base.num, enc->time_base.den); |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", %d/%d", |
|
enc->time_base.num / g, enc->time_base.den / g); |
|
} |
|
} |
|
if (encode) { |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", q=%d-%d", enc->qmin, enc->qmax); |
|
} |
|
break; |
|
case AVMEDIA_TYPE_AUDIO: |
|
if (enc->sample_rate) { |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", %d Hz", enc->sample_rate); |
|
} |
|
av_strlcat(buf, ", ", buf_size); |
|
av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout); |
|
if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) { |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", %s", av_get_sample_fmt_name(enc->sample_fmt)); |
|
} |
|
break; |
|
default: |
|
return; |
|
} |
|
if (encode) { |
|
if (enc->flags & CODEC_FLAG_PASS1) |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", pass 1"); |
|
if (enc->flags & CODEC_FLAG_PASS2) |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", pass 2"); |
|
} |
|
bitrate = get_bit_rate(enc); |
|
if (bitrate != 0) { |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
", %d kb/s", bitrate / 1000); |
|
} |
|
} |
|
|
|
const char *av_get_profile_name(const AVCodec *codec, int profile) |
|
{ |
|
const AVProfile *p; |
|
if (profile == FF_PROFILE_UNKNOWN || !codec->profiles) |
|
return NULL; |
|
|
|
for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) |
|
if (p->profile == profile) |
|
return p->name; |
|
|
|
return NULL; |
|
} |
|
|
|
unsigned avcodec_version(void) |
|
{ |
|
// av_assert0(AV_CODEC_ID_V410==164); |
|
av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563); |
|
av_assert0(AV_CODEC_ID_ADPCM_G722==69660); |
|
// av_assert0(AV_CODEC_ID_BMV_AUDIO==86071); |
|
av_assert0(AV_CODEC_ID_SRT==94216); |
|
av_assert0(LIBAVCODEC_VERSION_MICRO >= 100); |
|
|
|
return LIBAVCODEC_VERSION_INT; |
|
} |
|
|
|
const char *avcodec_configuration(void) |
|
{ |
|
return FFMPEG_CONFIGURATION; |
|
} |
|
|
|
const char *avcodec_license(void) |
|
{ |
|
#define LICENSE_PREFIX "libavcodec license: " |
|
return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; |
|
} |
|
|
|
void avcodec_flush_buffers(AVCodecContext *avctx) |
|
{ |
|
if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
|
ff_thread_flush(avctx); |
|
else if (avctx->codec->flush) |
|
avctx->codec->flush(avctx); |
|
|
|
avctx->pts_correction_last_pts = |
|
avctx->pts_correction_last_dts = INT64_MIN; |
|
} |
|
|
|
static void video_free_buffers(AVCodecContext *s) |
|
{ |
|
AVCodecInternal *avci = s->internal; |
|
int i, j; |
|
|
|
if (!avci->buffer) |
|
return; |
|
|
|
if (avci->buffer_count) |
|
av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n", |
|
avci->buffer_count); |
|
for (i = 0; i < INTERNAL_BUFFER_SIZE; i++) { |
|
InternalBuffer *buf = &avci->buffer[i]; |
|
for (j = 0; j < 4; j++) { |
|
av_freep(&buf->base[j]); |
|
buf->data[j] = NULL; |
|
} |
|
} |
|
av_freep(&avci->buffer); |
|
|
|
avci->buffer_count = 0; |
|
} |
|
|
|
static void audio_free_buffers(AVCodecContext *avctx) |
|
{ |
|
AVCodecInternal *avci = avctx->internal; |
|
InternalBuffer *buf; |
|
|
|
if (!avci->buffer) |
|
return; |
|
buf = avci->buffer; |
|
|
|
if (buf->extended_data) { |
|
av_free(buf->extended_data[0]); |
|
if (buf->extended_data != buf->data) |
|
av_freep(&buf->extended_data); |
|
} |
|
av_freep(&avci->buffer); |
|
} |
|
|
|
void avcodec_default_free_buffers(AVCodecContext *avctx) |
|
{ |
|
switch (avctx->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
video_free_buffers(avctx); |
|
break; |
|
case AVMEDIA_TYPE_AUDIO: |
|
audio_free_buffers(avctx); |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
|
|
int av_get_exact_bits_per_sample(enum AVCodecID codec_id) |
|
{ |
|
switch (codec_id) { |
|
case AV_CODEC_ID_ADPCM_CT: |
|
case AV_CODEC_ID_ADPCM_IMA_APC: |
|
case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: |
|
case AV_CODEC_ID_ADPCM_IMA_WS: |
|
case AV_CODEC_ID_ADPCM_G722: |
|
case AV_CODEC_ID_ADPCM_YAMAHA: |
|
return 4; |
|
case AV_CODEC_ID_PCM_ALAW: |
|
case AV_CODEC_ID_PCM_MULAW: |
|
case AV_CODEC_ID_PCM_S8: |
|
case AV_CODEC_ID_PCM_U8: |
|
case AV_CODEC_ID_PCM_ZORK: |
|
return 8; |
|
case AV_CODEC_ID_PCM_S16BE: |
|
case AV_CODEC_ID_PCM_S16LE: |
|
case AV_CODEC_ID_PCM_S16LE_PLANAR: |
|
case AV_CODEC_ID_PCM_U16BE: |
|
case AV_CODEC_ID_PCM_U16LE: |
|
return 16; |
|
case AV_CODEC_ID_PCM_S24DAUD: |
|
case AV_CODEC_ID_PCM_S24BE: |
|
case AV_CODEC_ID_PCM_S24LE: |
|
case AV_CODEC_ID_PCM_U24BE: |
|
case AV_CODEC_ID_PCM_U24LE: |
|
return 24; |
|
case AV_CODEC_ID_PCM_S32BE: |
|
case AV_CODEC_ID_PCM_S32LE: |
|
case AV_CODEC_ID_PCM_U32BE: |
|
case AV_CODEC_ID_PCM_U32LE: |
|
case AV_CODEC_ID_PCM_F32BE: |
|
case AV_CODEC_ID_PCM_F32LE: |
|
return 32; |
|
case AV_CODEC_ID_PCM_F64BE: |
|
case AV_CODEC_ID_PCM_F64LE: |
|
return 64; |
|
default: |
|
return 0; |
|
} |
|
} |
|
|
|
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be) |
|
{ |
|
static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = { |
|
[AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, |
|
[AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, |
|
[AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, |
|
[AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, |
|
[AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, |
|
[AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, |
|
[AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, |
|
[AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, |
|
[AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, |
|
[AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, |
|
}; |
|
if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB) |
|
return AV_CODEC_ID_NONE; |
|
if (be < 0 || be > 1) |
|
be = AV_NE(1, 0); |
|
return map[fmt][be]; |
|
} |
|
|
|
int av_get_bits_per_sample(enum AVCodecID codec_id) |
|
{ |
|
switch (codec_id) { |
|
case AV_CODEC_ID_ADPCM_SBPRO_2: |
|
return 2; |
|
case AV_CODEC_ID_ADPCM_SBPRO_3: |
|
return 3; |
|
case AV_CODEC_ID_ADPCM_SBPRO_4: |
|
case AV_CODEC_ID_ADPCM_IMA_WAV: |
|
case AV_CODEC_ID_ADPCM_IMA_QT: |
|
case AV_CODEC_ID_ADPCM_SWF: |
|
case AV_CODEC_ID_ADPCM_MS: |
|
return 4; |
|
default: |
|
return av_get_exact_bits_per_sample(codec_id); |
|
} |
|
} |
|
|
|
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes) |
|
{ |
|
int id, sr, ch, ba, tag, bps; |
|
|
|
id = avctx->codec_id; |
|
sr = avctx->sample_rate; |
|
ch = avctx->channels; |
|
ba = avctx->block_align; |
|
tag = avctx->codec_tag; |
|
bps = av_get_exact_bits_per_sample(avctx->codec_id); |
|
|
|
/* codecs with an exact constant bits per sample */ |
|
if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768) |
|
return (frame_bytes * 8LL) / (bps * ch); |
|
bps = avctx->bits_per_coded_sample; |
|
|
|
/* codecs with a fixed packet duration */ |
|
switch (id) { |
|
case AV_CODEC_ID_ADPCM_ADX: return 32; |
|
case AV_CODEC_ID_ADPCM_IMA_QT: return 64; |
|
case AV_CODEC_ID_ADPCM_EA_XAS: return 128; |
|
case AV_CODEC_ID_AMR_NB: |
|
case AV_CODEC_ID_GSM: |
|
case AV_CODEC_ID_QCELP: |
|
case AV_CODEC_ID_RA_288: return 160; |
|
case AV_CODEC_ID_IMC: return 256; |
|
case AV_CODEC_ID_AMR_WB: |
|
case AV_CODEC_ID_GSM_MS: return 320; |
|
case AV_CODEC_ID_MP1: return 384; |
|
case AV_CODEC_ID_ATRAC1: return 512; |
|
case AV_CODEC_ID_ATRAC3: return 1024; |
|
case AV_CODEC_ID_MP2: |
|
case AV_CODEC_ID_MUSEPACK7: return 1152; |
|
case AV_CODEC_ID_AC3: return 1536; |
|
} |
|
|
|
if (sr > 0) { |
|
/* calc from sample rate */ |
|
if (id == AV_CODEC_ID_TTA) |
|
return 256 * sr / 245; |
|
|
|
if (ch > 0) { |
|
/* calc from sample rate and channels */ |
|
if (id == AV_CODEC_ID_BINKAUDIO_DCT) |
|
return (480 << (sr / 22050)) / ch; |
|
} |
|
} |
|
|
|
if (ba > 0) { |
|
/* calc from block_align */ |
|
if (id == AV_CODEC_ID_SIPR) { |
|
switch (ba) { |
|
case 20: return 160; |
|
case 19: return 144; |
|
case 29: return 288; |
|
case 37: return 480; |
|
} |
|
} else if (id == AV_CODEC_ID_ILBC) { |
|
switch (ba) { |
|
case 38: return 160; |
|
case 50: return 240; |
|
} |
|
} |
|
} |
|
|
|
if (frame_bytes > 0) { |
|
/* calc from frame_bytes only */ |
|
if (id == AV_CODEC_ID_TRUESPEECH) |
|
return 240 * (frame_bytes / 32); |
|
if (id == AV_CODEC_ID_NELLYMOSER) |
|
return 256 * (frame_bytes / 64); |
|
if (id == AV_CODEC_ID_RA_144) |
|
return 160 * (frame_bytes / 20); |
|
|
|
if (bps > 0) { |
|
/* calc from frame_bytes and bits_per_coded_sample */ |
|
if (id == AV_CODEC_ID_ADPCM_G726) |
|
return frame_bytes * 8 / bps; |
|
} |
|
|
|
if (ch > 0) { |
|
/* calc from frame_bytes and channels */ |
|
switch (id) { |
|
case AV_CODEC_ID_ADPCM_4XM: |
|
case AV_CODEC_ID_ADPCM_IMA_ISS: |
|
return (frame_bytes - 4 * ch) * 2 / ch; |
|
case AV_CODEC_ID_ADPCM_IMA_SMJPEG: |
|
return (frame_bytes - 4) * 2 / ch; |
|
case AV_CODEC_ID_ADPCM_IMA_AMV: |
|
return (frame_bytes - 8) * 2 / ch; |
|
case AV_CODEC_ID_ADPCM_XA: |
|
return (frame_bytes / 128) * 224 / ch; |
|
case AV_CODEC_ID_INTERPLAY_DPCM: |
|
return (frame_bytes - 6 - ch) / ch; |
|
case AV_CODEC_ID_ROQ_DPCM: |
|
return (frame_bytes - 8) / ch; |
|
case AV_CODEC_ID_XAN_DPCM: |
|
return (frame_bytes - 2 * ch) / ch; |
|
case AV_CODEC_ID_MACE3: |
|
return 3 * frame_bytes / ch; |
|
case AV_CODEC_ID_MACE6: |
|
return 6 * frame_bytes / ch; |
|
case AV_CODEC_ID_PCM_LXF: |
|
return 2 * (frame_bytes / (5 * ch)); |
|
} |
|
|
|
if (tag) { |
|
/* calc from frame_bytes, channels, and codec_tag */ |
|
if (id == AV_CODEC_ID_SOL_DPCM) { |
|
if (tag == 3) |
|
return frame_bytes / ch; |
|
else |
|
return frame_bytes * 2 / ch; |
|
} |
|
} |
|
|
|
if (ba > 0) { |
|
/* calc from frame_bytes, channels, and block_align */ |
|
int blocks = frame_bytes / ba; |
|
switch (avctx->codec_id) { |
|
case AV_CODEC_ID_ADPCM_IMA_WAV: |
|
return blocks * (1 + (ba - 4 * ch) / (4 * ch) * 8); |
|
case AV_CODEC_ID_ADPCM_IMA_DK3: |
|
return blocks * (((ba - 16) * 2 / 3 * 4) / ch); |
|
case AV_CODEC_ID_ADPCM_IMA_DK4: |
|
return blocks * (1 + (ba - 4 * ch) * 2 / ch); |
|
case AV_CODEC_ID_ADPCM_MS: |
|
return blocks * (2 + (ba - 7 * ch) * 2 / ch); |
|
} |
|
} |
|
|
|
if (bps > 0) { |
|
/* calc from frame_bytes, channels, and bits_per_coded_sample */ |
|
switch (avctx->codec_id) { |
|
case AV_CODEC_ID_PCM_DVD: |
|
if(bps<4) |
|
return 0; |
|
return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); |
|
case AV_CODEC_ID_PCM_BLURAY: |
|
if(bps<4) |
|
return 0; |
|
return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8); |
|
case AV_CODEC_ID_S302M: |
|
return 2 * (frame_bytes / ((bps + 4) / 4)) / ch; |
|
} |
|
} |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
#if !HAVE_THREADS |
|
int ff_thread_init(AVCodecContext *s) |
|
{ |
|
return -1; |
|
} |
|
|
|
#endif |
|
|
|
unsigned int av_xiphlacing(unsigned char *s, unsigned int v) |
|
{ |
|
unsigned int n = 0; |
|
|
|
while (v >= 0xff) { |
|
*s++ = 0xff; |
|
v -= 0xff; |
|
n++; |
|
} |
|
*s = v; |
|
n++; |
|
return n; |
|
} |
|
|
|
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b) |
|
{ |
|
int i; |
|
for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ; |
|
return i; |
|
} |
|
|
|
void av_log_missing_feature(void *avc, const char *feature, int want_sample) |
|
{ |
|
av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg " |
|
"version to the newest one from Git. If the problem still " |
|
"occurs, it means that your file has a feature which has not " |
|
"been implemented.\n", feature); |
|
if(want_sample) |
|
av_log_ask_for_sample(avc, NULL); |
|
} |
|
|
|
void av_log_ask_for_sample(void *avc, const char *msg, ...) |
|
{ |
|
va_list argument_list; |
|
|
|
va_start(argument_list, msg); |
|
|
|
if (msg) |
|
av_vlog(avc, AV_LOG_WARNING, msg, argument_list); |
|
av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample " |
|
"of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ " |
|
"and contact the ffmpeg-devel mailing list.\n"); |
|
|
|
va_end(argument_list); |
|
} |
|
|
|
static AVHWAccel *first_hwaccel = NULL; |
|
|
|
void av_register_hwaccel(AVHWAccel *hwaccel) |
|
{ |
|
AVHWAccel **p = &first_hwaccel; |
|
while (*p) |
|
p = &(*p)->next; |
|
*p = hwaccel; |
|
hwaccel->next = NULL; |
|
} |
|
|
|
AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel) |
|
{ |
|
return hwaccel ? hwaccel->next : first_hwaccel; |
|
} |
|
|
|
AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum AVPixelFormat pix_fmt) |
|
{ |
|
AVHWAccel *hwaccel = NULL; |
|
|
|
while ((hwaccel = av_hwaccel_next(hwaccel))) |
|
if (hwaccel->id == codec_id |
|
&& hwaccel->pix_fmt == pix_fmt) |
|
return hwaccel; |
|
return NULL; |
|
} |
|
|
|
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) |
|
{ |
|
if (ff_lockmgr_cb) { |
|
if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY)) |
|
return -1; |
|
if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY)) |
|
return -1; |
|
} |
|
|
|
ff_lockmgr_cb = cb; |
|
|
|
if (ff_lockmgr_cb) { |
|
if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE)) |
|
return -1; |
|
if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE)) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
int avpriv_lock_avformat(void) |
|
{ |
|
if (ff_lockmgr_cb) { |
|
if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
int avpriv_unlock_avformat(void) |
|
{ |
|
if (ff_lockmgr_cb) { |
|
if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
unsigned int avpriv_toupper4(unsigned int x) |
|
{ |
|
return toupper(x & 0xFF) |
|
+ (toupper((x >> 8) & 0xFF) << 8) |
|
+ (toupper((x >> 16) & 0xFF) << 16) |
|
+ (toupper((x >> 24) & 0xFF) << 24); |
|
} |
|
|
|
#if !HAVE_THREADS |
|
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f) |
|
{ |
|
f->owner = avctx; |
|
|
|
ff_init_buffer_info(avctx, f); |
|
|
|
return avctx->get_buffer(avctx, f); |
|
} |
|
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f) |
|
{ |
|
f->owner->release_buffer(f->owner, f); |
|
} |
|
|
|
void ff_thread_finish_setup(AVCodecContext *avctx) |
|
{ |
|
} |
|
|
|
void ff_thread_report_progress(AVFrame *f, int progress, int field) |
|
{ |
|
} |
|
|
|
void ff_thread_await_progress(AVFrame *f, int progress, int field) |
|
{ |
|
} |
|
|
|
int ff_thread_can_start_frame(AVCodecContext *avctx) |
|
{ |
|
return 1; |
|
} |
|
|
|
#endif |
|
|
|
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id) |
|
{ |
|
AVCodec *c= avcodec_find_decoder(codec_id); |
|
if(!c) |
|
c= avcodec_find_encoder(codec_id); |
|
if(c) |
|
return c->type; |
|
|
|
if (codec_id <= AV_CODEC_ID_NONE) |
|
return AVMEDIA_TYPE_UNKNOWN; |
|
else if (codec_id < AV_CODEC_ID_FIRST_AUDIO) |
|
return AVMEDIA_TYPE_VIDEO; |
|
else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE) |
|
return AVMEDIA_TYPE_AUDIO; |
|
else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN) |
|
return AVMEDIA_TYPE_SUBTITLE; |
|
|
|
return AVMEDIA_TYPE_UNKNOWN; |
|
} |
|
|
|
int avcodec_is_open(AVCodecContext *s) |
|
{ |
|
return !!s->internal; |
|
}
|
|
|