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2362 lines
70 KiB
2362 lines
70 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 Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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 "config.h" |
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#include "libavutil/attributes.h" |
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#include "libavutil/avassert.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/channel_layout.h" |
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#include "libavutil/crc.h" |
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#include "libavutil/frame.h" |
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#include "libavutil/internal.h" |
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#include "libavutil/mathematics.h" |
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#include "libavutil/pixdesc.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 "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 "internal.h" |
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#include "bytestream.h" |
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#include "version.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 (*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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#if FF_API_FAST_MALLOC && CONFIG_SHARED && HAVE_SYMVER |
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FF_SYMVER(void*, av_fast_realloc, (void *ptr, unsigned int *size, size_t min_size), "LIBAVCODEC_55") |
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{ |
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return av_fast_realloc(ptr, size, min_size); |
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} |
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|
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FF_SYMVER(void, av_fast_malloc, (void *ptr, unsigned int *size, size_t min_size), "LIBAVCODEC_55") |
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{ |
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av_fast_malloc(ptr, size, min_size); |
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} |
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#endif |
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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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void **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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av_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE); |
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if (*size) |
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memset((uint8_t *)*p + min_size, 0, 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 av_cold 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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if (CONFIG_DSPUTIL) |
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ff_dsputil_static_init(); |
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} |
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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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|
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av_cold 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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#if FF_API_EMU_EDGE |
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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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#endif |
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|
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#if FF_API_SET_DIMENSIONS |
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void avcodec_set_dimensions(AVCodecContext *s, int width, int height) |
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{ |
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ff_set_dimensions(s, width, height); |
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} |
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#endif |
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|
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int ff_set_dimensions(AVCodecContext *s, int width, int height) |
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{ |
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int ret = av_image_check_size(width, height, 0, s); |
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|
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if (ret < 0) |
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width = height = 0; |
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s->width = s->coded_width = width; |
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s->height = s->coded_height = height; |
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|
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return ret; |
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} |
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|
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int ff_side_data_update_matrix_encoding(AVFrame *frame, |
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enum AVMatrixEncoding matrix_encoding) |
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{ |
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AVFrameSideData *side_data; |
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enum AVMatrixEncoding *data; |
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|
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side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING); |
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if (!side_data) |
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side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING, |
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sizeof(enum AVMatrixEncoding)); |
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|
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if (!side_data) |
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return AVERROR(ENOMEM); |
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|
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data = (enum AVMatrixEncoding*)side_data->data; |
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*data = matrix_encoding; |
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|
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return 0; |
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} |
|
|
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#if HAVE_NEON || ARCH_PPC || HAVE_MMX |
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# define STRIDE_ALIGN 16 |
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#else |
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# define STRIDE_ALIGN 8 |
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#endif |
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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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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_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_YUVA422P10LE: |
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case AV_PIX_FMT_YUVA422P10BE: |
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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_YUVA444P10LE: |
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case AV_PIX_FMT_YUVA444P10BE: |
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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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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; |
|
case AV_PIX_FMT_YUV410P: |
|
if (s->codec_id == AV_CODEC_ID_SVQ1) { |
|
w_align = 64; |
|
h_align = 64; |
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} |
|
case AV_PIX_FMT_RGB555: |
|
if (s->codec_id == AV_CODEC_ID_RPZA) { |
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w_align = 4; |
|
h_align = 4; |
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} |
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case AV_PIX_FMT_PAL8: |
|
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: |
|
w_align = 1; |
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h_align = 1; |
|
break; |
|
} |
|
|
|
*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) |
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// some of the optimized chroma MC reads one line too much |
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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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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); |
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int chroma_shift = desc->log2_chroma_w; |
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int linesize_align[AV_NUM_DATA_POINTERS]; |
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int align; |
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|
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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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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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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 * |
|
sizeof(*frame->extended_data)))) |
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return AVERROR(ENOMEM); |
|
} else { |
|
frame->extended_data = frame->data; |
|
} |
|
|
|
if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0], |
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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_free(frame->extended_data); |
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return ret; |
|
} |
|
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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} |
|
|
|
return ret; |
|
} |
|
|
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static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame) |
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{ |
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FramePool *pool = avctx->internal->pool; |
|
int i, ret; |
|
|
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switch (avctx->codec_type) { |
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case AVMEDIA_TYPE_VIDEO: { |
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AVPicture picture; |
|
int size[4] = { 0 }; |
|
int w = frame->width; |
|
int h = frame->height; |
|
int tmpsize, unaligned; |
|
|
|
if (pool->format == frame->format && |
|
pool->width == frame->width && pool->height == frame->height) |
|
return 0; |
|
|
|
avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align); |
|
|
|
if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) { |
|
w += EDGE_WIDTH * 2; |
|
h += EDGE_WIDTH * 2; |
|
} |
|
|
|
do { |
|
// NOTE: do not align linesizes individually, this breaks e.g. assumptions |
|
// that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2 |
|
av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w); |
|
// increase alignment of w for next try (rhs gives the lowest bit set in w) |
|
w += w & ~(w - 1); |
|
|
|
unaligned = 0; |
|
for (i = 0; i < 4; i++) |
|
unaligned |= picture.linesize[i] % pool->stride_align[i]; |
|
} while (unaligned); |
|
|
|
tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h, |
|
NULL, picture.linesize); |
|
if (tmpsize < 0) |
|
return -1; |
|
|
|
for (i = 0; i < 3 && picture.data[i + 1]; i++) |
|
size[i] = picture.data[i + 1] - picture.data[i]; |
|
size[i] = tmpsize - (picture.data[i] - picture.data[0]); |
|
|
|
for (i = 0; i < 4; i++) { |
|
av_buffer_pool_uninit(&pool->pools[i]); |
|
pool->linesize[i] = picture.linesize[i]; |
|
if (size[i]) { |
|
pool->pools[i] = av_buffer_pool_init(size[i] + 16, NULL); |
|
if (!pool->pools[i]) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
} |
|
} |
|
pool->format = frame->format; |
|
pool->width = frame->width; |
|
pool->height = frame->height; |
|
|
|
break; |
|
} |
|
case AVMEDIA_TYPE_AUDIO: { |
|
int ch = av_get_channel_layout_nb_channels(frame->channel_layout); |
|
int planar = av_sample_fmt_is_planar(frame->format); |
|
int planes = planar ? ch : 1; |
|
|
|
if (pool->format == frame->format && pool->planes == planes && |
|
pool->channels == ch && frame->nb_samples == pool->samples) |
|
return 0; |
|
|
|
av_buffer_pool_uninit(&pool->pools[0]); |
|
ret = av_samples_get_buffer_size(&pool->linesize[0], ch, |
|
frame->nb_samples, frame->format, 0); |
|
if (ret < 0) |
|
goto fail; |
|
|
|
pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL); |
|
if (!pool->pools[0]) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
pool->format = frame->format; |
|
pool->planes = planes; |
|
pool->channels = ch; |
|
pool->samples = frame->nb_samples; |
|
break; |
|
} |
|
default: av_assert0(0); |
|
} |
|
return 0; |
|
fail: |
|
for (i = 0; i < 4; i++) |
|
av_buffer_pool_uninit(&pool->pools[i]); |
|
pool->format = -1; |
|
pool->planes = pool->channels = pool->samples = 0; |
|
pool->width = pool->height = 0; |
|
return ret; |
|
} |
|
|
|
static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
|
{ |
|
FramePool *pool = avctx->internal->pool; |
|
int planes = pool->planes; |
|
int i; |
|
|
|
frame->linesize[0] = pool->linesize[0]; |
|
|
|
if (planes > AV_NUM_DATA_POINTERS) { |
|
frame->extended_data = av_mallocz(planes * sizeof(*frame->extended_data)); |
|
frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS; |
|
frame->extended_buf = av_mallocz(frame->nb_extended_buf * |
|
sizeof(*frame->extended_buf)); |
|
if (!frame->extended_data || !frame->extended_buf) { |
|
av_freep(&frame->extended_data); |
|
av_freep(&frame->extended_buf); |
|
return AVERROR(ENOMEM); |
|
} |
|
} else |
|
frame->extended_data = frame->data; |
|
|
|
for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) { |
|
frame->buf[i] = av_buffer_pool_get(pool->pools[0]); |
|
if (!frame->buf[i]) |
|
goto fail; |
|
frame->extended_data[i] = frame->data[i] = frame->buf[i]->data; |
|
} |
|
for (i = 0; i < frame->nb_extended_buf; i++) { |
|
frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]); |
|
if (!frame->extended_buf[i]) |
|
goto fail; |
|
frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data; |
|
} |
|
|
|
if (avctx->debug & FF_DEBUG_BUFFERS) |
|
av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame); |
|
|
|
return 0; |
|
fail: |
|
av_frame_unref(frame); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
static int video_get_buffer(AVCodecContext *s, AVFrame *pic) |
|
{ |
|
FramePool *pool = s->internal->pool; |
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format); |
|
int pixel_size = desc->comp[0].step_minus1 + 1; |
|
int h_chroma_shift, v_chroma_shift; |
|
int i; |
|
|
|
if (pic->data[0] != NULL) { |
|
av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n"); |
|
return -1; |
|
} |
|
|
|
memset(pic->data, 0, sizeof(pic->data)); |
|
pic->extended_data = pic->data; |
|
|
|
av_pix_fmt_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift); |
|
|
|
for (i = 0; i < 4 && pool->pools[i]; i++) { |
|
const int h_shift = i == 0 ? 0 : h_chroma_shift; |
|
const int v_shift = i == 0 ? 0 : v_chroma_shift; |
|
|
|
pic->linesize[i] = pool->linesize[i]; |
|
|
|
pic->buf[i] = av_buffer_pool_get(pool->pools[i]); |
|
if (!pic->buf[i]) |
|
goto fail; |
|
|
|
// no edge if EDGE EMU or not planar YUV |
|
if ((s->flags & CODEC_FLAG_EMU_EDGE) || !pool->pools[2]) |
|
pic->data[i] = pic->buf[i]->data; |
|
else { |
|
pic->data[i] = pic->buf[i]->data + |
|
FFALIGN((pic->linesize[i] * EDGE_WIDTH >> v_shift) + |
|
(pixel_size * EDGE_WIDTH >> h_shift), pool->stride_align[i]); |
|
} |
|
} |
|
for (; i < AV_NUM_DATA_POINTERS; i++) { |
|
pic->data[i] = NULL; |
|
pic->linesize[i] = 0; |
|
} |
|
if (pic->data[1] && !pic->data[2]) |
|
avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt); |
|
|
|
if (s->debug & FF_DEBUG_BUFFERS) |
|
av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic); |
|
|
|
return 0; |
|
fail: |
|
av_frame_unref(pic); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags) |
|
{ |
|
int ret; |
|
|
|
if ((ret = update_frame_pool(avctx, frame)) < 0) |
|
return ret; |
|
|
|
#if FF_API_GET_BUFFER |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
frame->type = FF_BUFFER_TYPE_INTERNAL; |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif |
|
|
|
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; |
|
} |
|
} |
|
|
|
#if FF_API_GET_BUFFER |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
|
{ |
|
return avcodec_default_get_buffer2(avctx, frame, 0); |
|
} |
|
|
|
typedef struct CompatReleaseBufPriv { |
|
AVCodecContext avctx; |
|
AVFrame frame; |
|
} CompatReleaseBufPriv; |
|
|
|
static void compat_free_buffer(void *opaque, uint8_t *data) |
|
{ |
|
CompatReleaseBufPriv *priv = opaque; |
|
if (priv->avctx.release_buffer) |
|
priv->avctx.release_buffer(&priv->avctx, &priv->frame); |
|
av_freep(&priv); |
|
} |
|
|
|
static void compat_release_buffer(void *opaque, uint8_t *data) |
|
{ |
|
AVBufferRef *buf = opaque; |
|
av_buffer_unref(&buf); |
|
} |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif |
|
|
|
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame) |
|
{ |
|
AVPacket *pkt = avctx->internal->pkt; |
|
uint8_t *packet_sd; |
|
int size; |
|
AVFrameSideData *frame_sd; |
|
|
|
|
|
frame->reordered_opaque = avctx->reordered_opaque; |
|
if (!pkt) { |
|
frame->pkt_pts = AV_NOPTS_VALUE; |
|
return 0; |
|
} |
|
|
|
frame->pkt_pts = pkt->pts; |
|
|
|
/* copy the replaygain data to the output frame */ |
|
packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_REPLAYGAIN, &size); |
|
if (packet_sd) { |
|
frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_REPLAYGAIN, size); |
|
if (!frame_sd) |
|
return AVERROR(ENOMEM); |
|
|
|
memcpy(frame_sd->data, packet_sd, size); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) |
|
{ |
|
int override_dimensions = 1; |
|
int ret; |
|
|
|
switch (avctx->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
if (frame->width <= 0 || frame->height <= 0) { |
|
frame->width = FFMAX(avctx->width, avctx->coded_width); |
|
frame->height = FFMAX(avctx->height, avctx->coded_height); |
|
override_dimensions = 0; |
|
} |
|
if (frame->format < 0) |
|
frame->format = avctx->pix_fmt; |
|
if (!frame->sample_aspect_ratio.num) |
|
frame->sample_aspect_ratio = avctx->sample_aspect_ratio; |
|
|
|
if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0) |
|
return ret; |
|
break; |
|
case AVMEDIA_TYPE_AUDIO: |
|
if (!frame->sample_rate) |
|
frame->sample_rate = avctx->sample_rate; |
|
if (frame->format < 0) |
|
frame->format = avctx->sample_fmt; |
|
if (!frame->channel_layout) { |
|
if (avctx->channel_layout) { |
|
if (av_get_channel_layout_nb_channels(avctx->channel_layout) != |
|
avctx->channels) { |
|
av_log(avctx, AV_LOG_ERROR, "Inconsistent channel " |
|
"configuration.\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
frame->channel_layout = avctx->channel_layout; |
|
} else { |
|
if (avctx->channels > FF_SANE_NB_CHANNELS) { |
|
av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n", |
|
avctx->channels); |
|
return AVERROR(ENOSYS); |
|
} |
|
|
|
frame->channel_layout = av_get_default_channel_layout(avctx->channels); |
|
if (!frame->channel_layout) |
|
frame->channel_layout = (1ULL << avctx->channels) - 1; |
|
} |
|
} |
|
break; |
|
default: return AVERROR(EINVAL); |
|
} |
|
|
|
ret = ff_decode_frame_props(avctx, frame); |
|
if (ret < 0) |
|
return ret; |
|
|
|
#if FF_API_GET_BUFFER |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
/* |
|
* Wrap an old get_buffer()-allocated buffer in an bunch of AVBuffers. |
|
* We wrap each plane in its own AVBuffer. Each of those has a reference to |
|
* a dummy AVBuffer as its private data, unreffing it on free. |
|
* When all the planes are freed, the dummy buffer's free callback calls |
|
* release_buffer(). |
|
*/ |
|
if (avctx->get_buffer) { |
|
CompatReleaseBufPriv *priv = NULL; |
|
AVBufferRef *dummy_buf = NULL; |
|
int planes, i, ret; |
|
|
|
if (flags & AV_GET_BUFFER_FLAG_REF) |
|
frame->reference = 1; |
|
|
|
ret = avctx->get_buffer(avctx, frame); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* return if the buffers are already set up |
|
* this would happen e.g. when a custom get_buffer() calls |
|
* avcodec_default_get_buffer |
|
*/ |
|
if (frame->buf[0]) |
|
return 0; |
|
|
|
priv = av_mallocz(sizeof(*priv)); |
|
if (!priv) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
priv->avctx = *avctx; |
|
priv->frame = *frame; |
|
|
|
dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0); |
|
if (!dummy_buf) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
#define WRAP_PLANE(ref_out, data, data_size) \ |
|
do { \ |
|
AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \ |
|
if (!dummy_ref) { \ |
|
ret = AVERROR(ENOMEM); \ |
|
goto fail; \ |
|
} \ |
|
ref_out = av_buffer_create(data, data_size, compat_release_buffer, \ |
|
dummy_ref, 0); \ |
|
if (!ref_out) { \ |
|
av_frame_unref(frame); \ |
|
ret = AVERROR(ENOMEM); \ |
|
goto fail; \ |
|
} \ |
|
} while (0) |
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); |
|
|
|
planes = av_pix_fmt_count_planes(frame->format); |
|
/* workaround for AVHWAccel plane count of 0, buf[0] is used as |
|
check for allocated buffers: make libavcodec happy */ |
|
if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL) |
|
planes = 1; |
|
if (!desc || planes <= 0) { |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
|
|
for (i = 0; i < planes; i++) { |
|
int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0; |
|
int plane_size = (frame->height >> v_shift) * frame->linesize[i]; |
|
|
|
WRAP_PLANE(frame->buf[i], frame->data[i], plane_size); |
|
} |
|
} else { |
|
int planar = av_sample_fmt_is_planar(frame->format); |
|
planes = planar ? avctx->channels : 1; |
|
|
|
if (planes > FF_ARRAY_ELEMS(frame->buf)) { |
|
frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf); |
|
frame->extended_buf = av_malloc(sizeof(*frame->extended_buf) * |
|
frame->nb_extended_buf); |
|
if (!frame->extended_buf) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
} |
|
|
|
for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++) |
|
WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]); |
|
|
|
for (i = 0; i < frame->nb_extended_buf; i++) |
|
WRAP_PLANE(frame->extended_buf[i], |
|
frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)], |
|
frame->linesize[0]); |
|
} |
|
|
|
av_buffer_unref(&dummy_buf); |
|
|
|
frame->width = avctx->width; |
|
frame->height = avctx->height; |
|
|
|
return 0; |
|
|
|
fail: |
|
avctx->release_buffer(avctx, frame); |
|
av_freep(&priv); |
|
av_buffer_unref(&dummy_buf); |
|
return ret; |
|
} |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif |
|
|
|
ret = avctx->get_buffer2(avctx, frame, flags); |
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) { |
|
frame->width = avctx->width; |
|
frame->height = avctx->height; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame) |
|
{ |
|
AVFrame *tmp; |
|
int ret; |
|
|
|
av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO); |
|
|
|
if (!frame->data[0]) |
|
return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); |
|
|
|
if (av_frame_is_writable(frame)) |
|
return ff_decode_frame_props(avctx, frame); |
|
|
|
tmp = av_frame_alloc(); |
|
if (!tmp) |
|
return AVERROR(ENOMEM); |
|
|
|
av_frame_move_ref(tmp, frame); |
|
|
|
ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); |
|
if (ret < 0) { |
|
av_frame_free(&tmp); |
|
return ret; |
|
} |
|
|
|
av_frame_copy(frame, tmp); |
|
av_frame_free(&tmp); |
|
|
|
return 0; |
|
} |
|
|
|
#if FF_API_GET_BUFFER |
|
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic) |
|
{ |
|
av_frame_unref(pic); |
|
} |
|
|
|
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic) |
|
{ |
|
av_assert0(0); |
|
return AVERROR_BUG; |
|
} |
|
#endif |
|
|
|
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; |
|
} |
|
|
|
static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt) |
|
{ |
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); |
|
return desc->flags & AV_PIX_FMT_FLAG_HWACCEL; |
|
} |
|
|
|
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt) |
|
{ |
|
while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt)) |
|
++fmt; |
|
return fmt[0]; |
|
} |
|
|
|
#if FF_API_AVFRAME_LAVC |
|
void avcodec_get_frame_defaults(AVFrame *frame) |
|
{ |
|
if (frame->extended_data != frame->data) |
|
av_freep(&frame->extended_data); |
|
|
|
memset(frame, 0, sizeof(AVFrame)); |
|
|
|
frame->pts = AV_NOPTS_VALUE; |
|
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_mallocz(sizeof(AVFrame)); |
|
|
|
if (frame == NULL) |
|
return NULL; |
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
avcodec_get_frame_defaults(frame); |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
|
|
return frame; |
|
} |
|
|
|
void avcodec_free_frame(AVFrame **frame) |
|
{ |
|
av_frame_free(frame); |
|
} |
|
#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 (lockmgr_cb) { |
|
if ((*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; |
|
} |
|
|
|
avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool)); |
|
if (!avctx->internal->pool) { |
|
ret = AVERROR(ENOMEM); |
|
goto free_and_end; |
|
} |
|
|
|
avctx->internal->to_free = av_frame_alloc(); |
|
if (!avctx->internal->to_free) { |
|
ret = AVERROR(ENOMEM); |
|
goto free_and_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 (avctx->coded_width && avctx->coded_height && !avctx->width && !avctx->height) |
|
ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); |
|
else if (avctx->width && avctx->height) |
|
ret = ff_set_dimensions(avctx, avctx->width, avctx->height); |
|
if (ret < 0) |
|
goto free_and_end; |
|
|
|
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"); |
|
ff_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); |
|
|
|
if (avctx->channels > FF_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; |
|
|
|
if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL && |
|
avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
|
ret = AVERROR_EXPERIMENTAL; |
|
goto free_and_end; |
|
} |
|
|
|
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) { |
|
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 (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) { |
|
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); |
|
} |
|
|
|
if (!avctx->rc_initial_buffer_occupancy) |
|
avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4; |
|
} |
|
|
|
if (avctx->codec->init && !(avctx->active_thread_type & FF_THREAD_FRAME)) { |
|
ret = avctx->codec->init(avctx); |
|
if (ret < 0) { |
|
goto free_and_end; |
|
} |
|
} |
|
|
|
if (av_codec_is_decoder(avctx->codec)) { |
|
/* 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; |
|
} |
|
} |
|
if (avctx->channels && avctx->channels < 0 || |
|
avctx->channels > FF_SANE_NB_CHANNELS) { |
|
ret = AVERROR(EINVAL); |
|
goto free_and_end; |
|
} |
|
} |
|
end: |
|
entangled_thread_counter--; |
|
|
|
/* Release any user-supplied mutex. */ |
|
if (lockmgr_cb) { |
|
(*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); |
|
if (avctx->internal) { |
|
av_frame_free(&avctx->internal->to_free); |
|
av_freep(&avctx->internal->pool); |
|
} |
|
av_freep(&avctx->internal); |
|
avctx->codec = NULL; |
|
goto end; |
|
} |
|
|
|
int ff_alloc_packet(AVPacket *avpkt, int size) |
|
{ |
|
if (size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) |
|
return AVERROR(EINVAL); |
|
|
|
if (avpkt->data) { |
|
AVBufferRef *buf = avpkt->buf; |
|
#if FF_API_DESTRUCT_PACKET |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
void *destruct = avpkt->destruct; |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif |
|
|
|
if (avpkt->size < size) |
|
return AVERROR(EINVAL); |
|
|
|
av_init_packet(avpkt); |
|
#if FF_API_DESTRUCT_PACKET |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
avpkt->destruct = destruct; |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif |
|
avpkt->buf = buf; |
|
avpkt->size = size; |
|
return 0; |
|
} else { |
|
return av_new_packet(avpkt, size); |
|
} |
|
} |
|
|
|
/** |
|
* Pad last frame with silence. |
|
*/ |
|
static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) |
|
{ |
|
AVFrame *frame = NULL; |
|
int ret; |
|
|
|
if (!(frame = av_frame_alloc())) |
|
return AVERROR(ENOMEM); |
|
|
|
frame->format = src->format; |
|
frame->channel_layout = src->channel_layout; |
|
frame->nb_samples = s->frame_size; |
|
ret = av_frame_get_buffer(frame, 32); |
|
if (ret < 0) |
|
goto fail; |
|
|
|
ret = av_frame_copy_props(frame, src); |
|
if (ret < 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: |
|
av_frame_free(&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; |
|
int user_packet = !!avpkt->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) |
|
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) { |
|
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 (!user_packet && avpkt->size) { |
|
ret = av_buffer_realloc(&avpkt->buf, avpkt->size); |
|
if (ret >= 0) |
|
avpkt->data = avpkt->buf->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: |
|
av_frame_free(&padded_frame); |
|
|
|
return ret; |
|
} |
|
|
|
int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, |
|
AVPacket *avpkt, |
|
const AVFrame *frame, |
|
int *got_packet_ptr) |
|
{ |
|
int ret; |
|
int user_packet = !!avpkt->data; |
|
|
|
*got_packet_ptr = 0; |
|
|
|
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); |
|
if (!ret) { |
|
if (!*got_packet_ptr) |
|
avpkt->size = 0; |
|
else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) |
|
avpkt->pts = avpkt->dts = frame->pts; |
|
|
|
if (!user_packet && avpkt->size) { |
|
ret = av_buffer_realloc(&avpkt->buf, avpkt->size); |
|
if (ret >= 0) |
|
avpkt->data = avpkt->buf->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; |
|
} |
|
if (sub->num_rects == 0 || !sub->rects) |
|
return -1; |
|
ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub); |
|
avctx->frame_number++; |
|
return ret; |
|
} |
|
|
|
static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt) |
|
{ |
|
int size = 0, ret; |
|
const uint8_t *data; |
|
uint32_t flags; |
|
|
|
data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); |
|
if (!data) |
|
return 0; |
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) { |
|
av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter " |
|
"changes, but PARAM_CHANGE side data was sent to it.\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (size < 4) |
|
goto fail; |
|
|
|
flags = bytestream_get_le32(&data); |
|
size -= 4; |
|
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { |
|
if (size < 4) |
|
goto fail; |
|
avctx->channels = bytestream_get_le32(&data); |
|
size -= 4; |
|
} |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { |
|
if (size < 8) |
|
goto fail; |
|
avctx->channel_layout = bytestream_get_le64(&data); |
|
size -= 8; |
|
} |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { |
|
if (size < 4) |
|
goto fail; |
|
avctx->sample_rate = bytestream_get_le32(&data); |
|
size -= 4; |
|
} |
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { |
|
if (size < 8) |
|
goto fail; |
|
avctx->width = bytestream_get_le32(&data); |
|
avctx->height = bytestream_get_le32(&data); |
|
size -= 8; |
|
ret = ff_set_dimensions(avctx, avctx->width, avctx->height); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
fail: |
|
av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame) |
|
{ |
|
int ret; |
|
|
|
/* move the original frame to our backup */ |
|
av_frame_unref(avci->to_free); |
|
av_frame_move_ref(avci->to_free, frame); |
|
|
|
/* now copy everything except the AVBufferRefs back |
|
* note that we make a COPY of the side data, so calling av_frame_free() on |
|
* the caller's frame will work properly */ |
|
ret = av_frame_copy_props(frame, avci->to_free); |
|
if (ret < 0) |
|
return ret; |
|
|
|
memcpy(frame->data, avci->to_free->data, sizeof(frame->data)); |
|
memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize)); |
|
if (avci->to_free->extended_data != avci->to_free->data) { |
|
int planes = av_get_channel_layout_nb_channels(avci->to_free->channel_layout); |
|
int size = planes * sizeof(*frame->extended_data); |
|
|
|
if (!size) { |
|
av_frame_unref(frame); |
|
return AVERROR_BUG; |
|
} |
|
|
|
frame->extended_data = av_malloc(size); |
|
if (!frame->extended_data) { |
|
av_frame_unref(frame); |
|
return AVERROR(ENOMEM); |
|
} |
|
memcpy(frame->extended_data, avci->to_free->extended_data, |
|
size); |
|
} else |
|
frame->extended_data = frame->data; |
|
|
|
frame->format = avci->to_free->format; |
|
frame->width = avci->to_free->width; |
|
frame->height = avci->to_free->height; |
|
frame->channel_layout = avci->to_free->channel_layout; |
|
frame->nb_samples = avci->to_free->nb_samples; |
|
|
|
return 0; |
|
} |
|
|
|
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, |
|
int *got_picture_ptr, |
|
AVPacket *avpkt) |
|
{ |
|
AVCodecInternal *avci = avctx->internal; |
|
int ret; |
|
|
|
*got_picture_ptr = 0; |
|
if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) |
|
return -1; |
|
|
|
avctx->internal->pkt = avpkt; |
|
ret = apply_param_change(avctx, avpkt); |
|
if (ret < 0) { |
|
av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); |
|
if (avctx->err_recognition & AV_EF_EXPLODE) |
|
return ret; |
|
} |
|
|
|
av_frame_unref(picture); |
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { |
|
if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
|
ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, |
|
avpkt); |
|
else { |
|
ret = avctx->codec->decode(avctx, picture, got_picture_ptr, |
|
avpkt); |
|
picture->pkt_dts = avpkt->dts; |
|
/* get_buffer is supposed to set frame parameters */ |
|
if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) { |
|
picture->sample_aspect_ratio = avctx->sample_aspect_ratio; |
|
picture->width = avctx->width; |
|
picture->height = avctx->height; |
|
picture->format = avctx->pix_fmt; |
|
} |
|
} |
|
|
|
emms_c(); //needed to avoid an emms_c() call before every return; |
|
|
|
if (*got_picture_ptr) { |
|
if (!avctx->refcounted_frames) { |
|
int err = unrefcount_frame(avci, picture); |
|
if (err < 0) |
|
return err; |
|
} |
|
|
|
avctx->frame_number++; |
|
} else |
|
av_frame_unref(picture); |
|
} else |
|
ret = 0; |
|
|
|
return ret; |
|
} |
|
|
|
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, |
|
AVFrame *frame, |
|
int *got_frame_ptr, |
|
AVPacket *avpkt) |
|
{ |
|
AVCodecInternal *avci = avctx->internal; |
|
int ret = 0; |
|
|
|
*got_frame_ptr = 0; |
|
|
|
avctx->internal->pkt = avpkt; |
|
|
|
if (!avpkt->data && avpkt->size) { |
|
av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
ret = apply_param_change(avctx, avpkt); |
|
if (ret < 0) { |
|
av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); |
|
if (avctx->err_recognition & AV_EF_EXPLODE) |
|
return ret; |
|
} |
|
|
|
av_frame_unref(frame); |
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) { |
|
ret = avctx->codec->decode(avctx, frame, got_frame_ptr, avpkt); |
|
if (ret >= 0 && *got_frame_ptr) { |
|
avctx->frame_number++; |
|
frame->pkt_dts = avpkt->dts; |
|
if (frame->format == AV_SAMPLE_FMT_NONE) |
|
frame->format = avctx->sample_fmt; |
|
|
|
if (!avctx->refcounted_frames) { |
|
int err = unrefcount_frame(avci, frame); |
|
if (err < 0) |
|
return err; |
|
} |
|
} else |
|
av_frame_unref(frame); |
|
} |
|
|
|
|
|
return ret; |
|
} |
|
|
|
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, |
|
int *got_sub_ptr, |
|
AVPacket *avpkt) |
|
{ |
|
int ret; |
|
|
|
avctx->internal->pkt = avpkt; |
|
*got_sub_ptr = 0; |
|
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 (lockmgr_cb) { |
|
if ((*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)) { |
|
FramePool *pool = avctx->internal->pool; |
|
int i; |
|
if (HAVE_THREADS && avctx->internal->thread_ctx) |
|
ff_thread_free(avctx); |
|
if (avctx->codec && avctx->codec->close) |
|
avctx->codec->close(avctx); |
|
avctx->coded_frame = NULL; |
|
av_frame_free(&avctx->internal->to_free); |
|
for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++) |
|
av_buffer_pool_uninit(&pool->pools[i]); |
|
av_freep(&avctx->internal->pool); |
|
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 (lockmgr_cb) { |
|
(*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE); |
|
} |
|
return 0; |
|
} |
|
|
|
static AVCodec *find_encdec(enum AVCodecID id, int encoder) |
|
{ |
|
AVCodec *p, *experimental = NULL; |
|
p = first_avcodec; |
|
while (p) { |
|
if ((encoder ? av_codec_is_encoder(p) : 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_encoder(enum AVCodecID id) |
|
{ |
|
return find_encdec(id, 1); |
|
} |
|
|
|
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) |
|
{ |
|
return find_encdec(id, 0); |
|
} |
|
|
|
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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag) |
|
{ |
|
int i, len, ret = 0; |
|
|
|
#define TAG_PRINT(x) \ |
|
(((x) >= '0' && (x) <= '9') || \ |
|
((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \ |
|
((x) == '.' || (x) == ' ')) |
|
|
|
for (i = 0; i < 4; i++) { |
|
len = snprintf(buf, buf_size, |
|
TAG_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_name; |
|
const char *profile = NULL; |
|
const AVCodec *p; |
|
char buf1[32]; |
|
int bitrate; |
|
AVRational display_aspect_ratio; |
|
|
|
if (enc->codec) |
|
p = enc->codec; |
|
else if (encode) |
|
p = avcodec_find_encoder(enc->codec_id); |
|
else |
|
p = avcodec_find_decoder(enc->codec_id); |
|
|
|
if (p) { |
|
codec_name = p->name; |
|
profile = av_get_profile_name(p, enc->profile); |
|
} else if (enc->codec_id == AV_CODEC_ID_MPEG2TS) { |
|
/* fake mpeg2 transport stream codec (currently not |
|
* registered) */ |
|
codec_name = "mpeg2ts"; |
|
} else if (enc->codec_name[0] != '\0') { |
|
codec_name = enc->codec_name; |
|
} else { |
|
/* output avi tags */ |
|
char tag_buf[32]; |
|
av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag); |
|
snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag); |
|
codec_name = buf1; |
|
} |
|
|
|
switch (enc->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
snprintf(buf, buf_size, |
|
"Video: %s%s", |
|
codec_name, enc->mb_decision ? " (hq)" : ""); |
|
if (profile) |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
" (%s)", profile); |
|
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), |
|
" [PAR %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: |
|
snprintf(buf, buf_size, |
|
"Audio: %s", |
|
codec_name); |
|
if (profile) |
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), |
|
" (%s)", profile); |
|
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; |
|
case AVMEDIA_TYPE_DATA: |
|
snprintf(buf, buf_size, "Data: %s", codec_name); |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
snprintf(buf, buf_size, "Subtitle: %s", codec_name); |
|
break; |
|
case AVMEDIA_TYPE_ATTACHMENT: |
|
snprintf(buf, buf_size, "Attachment: %s", codec_name); |
|
break; |
|
default: |
|
snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type); |
|
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) |
|
{ |
|
return LIBAVCODEC_VERSION_INT; |
|
} |
|
|
|
const char *avcodec_configuration(void) |
|
{ |
|
return LIBAV_CONFIGURATION; |
|
} |
|
|
|
const char *avcodec_license(void) |
|
{ |
|
#define LICENSE_PREFIX "libavcodec license: " |
|
return LICENSE_PREFIX LIBAV_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); |
|
|
|
if (!avctx->refcounted_frames) |
|
av_frame_unref(avctx->internal->to_free); |
|
} |
|
|
|
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_S24LE_PLANAR: |
|
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_S32LE_PLANAR: |
|
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; |
|
} |
|
} |
|
|
|
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) |
|
return (frame_bytes * 8) / (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_144: |
|
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 (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: |
|
return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); |
|
case AV_CODEC_ID_PCM_BLURAY: |
|
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; |
|
} |
|
|
|
#if FF_API_MISSING_SAMPLE |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
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 Libav " |
|
"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.libav.org/incoming/ " |
|
"and contact the libav-devel mailing list.\n"); |
|
|
|
va_end(argument_list); |
|
} |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif /* FF_API_MISSING_SAMPLE */ |
|
|
|
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(AVCodecContext *avctx) |
|
{ |
|
enum AVCodecID codec_id = avctx->codec->id; |
|
enum AVPixelFormat pix_fmt = avctx->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 (lockmgr_cb) { |
|
if (lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY)) |
|
return -1; |
|
if (lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY)) |
|
return -1; |
|
} |
|
|
|
lockmgr_cb = cb; |
|
|
|
if (lockmgr_cb) { |
|
if (lockmgr_cb(&codec_mutex, AV_LOCK_CREATE)) |
|
return -1; |
|
if (lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE)) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
int avpriv_lock_avformat(void) |
|
{ |
|
if (lockmgr_cb) { |
|
if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
int avpriv_unlock_avformat(void) |
|
{ |
|
if (lockmgr_cb) { |
|
if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
unsigned int avpriv_toupper4(unsigned int x) |
|
{ |
|
return av_toupper(x & 0xFF) + |
|
(av_toupper((x >> 8) & 0xFF) << 8) + |
|
(av_toupper((x >> 16) & 0xFF) << 16) + |
|
(av_toupper((x >> 24) & 0xFF) << 24); |
|
} |
|
|
|
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src) |
|
{ |
|
int ret; |
|
|
|
dst->owner = src->owner; |
|
|
|
ret = av_frame_ref(dst->f, src->f); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (src->progress && |
|
!(dst->progress = av_buffer_ref(src->progress))) { |
|
ff_thread_release_buffer(dst->owner, dst); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
#if !HAVE_THREADS |
|
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags) |
|
{ |
|
f->owner = avctx; |
|
return ff_get_buffer(avctx, f->f, flags); |
|
} |
|
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f) |
|
{ |
|
av_frame_unref(f->f); |
|
} |
|
|
|
void ff_thread_finish_setup(AVCodecContext *avctx) |
|
{ |
|
} |
|
|
|
void ff_thread_report_progress(ThreadFrame *f, int progress, int field) |
|
{ |
|
} |
|
|
|
void ff_thread_await_progress(ThreadFrame *f, int progress, int field) |
|
{ |
|
} |
|
|
|
#endif |
|
|
|
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id) |
|
{ |
|
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; |
|
} |
|
|
|
const uint8_t *avpriv_find_start_code(const uint8_t *restrict p, |
|
const uint8_t *end, |
|
uint32_t * restrict state) |
|
{ |
|
int i; |
|
|
|
assert(p <= end); |
|
if (p >= end) |
|
return end; |
|
|
|
for (i = 0; i < 3; i++) { |
|
uint32_t tmp = *state << 8; |
|
*state = tmp + *(p++); |
|
if (tmp == 0x100 || p == end) |
|
return p; |
|
} |
|
|
|
while (p < end) { |
|
if (p[-1] > 1 ) p += 3; |
|
else if (p[-2] ) p += 2; |
|
else if (p[-3]|(p[-1]-1)) p++; |
|
else { |
|
p++; |
|
break; |
|
} |
|
} |
|
|
|
p = FFMIN(p, end) - 4; |
|
*state = AV_RB32(p); |
|
|
|
return p + 4; |
|
}
|
|
|