mirror of https://github.com/FFmpeg/FFmpeg.git
Sebastien Zwickert
10 years ago
committed by
Clément Bœsch
parent
127203ba5a
commit
11d923d414
21 changed files with 1113 additions and 289 deletions
@ -1,137 +0,0 @@ |
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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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#include "libavcodec/avcodec.h" |
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#include "libavcodec/vda.h" |
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#include "libavutil/imgutils.h" |
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#include "ffmpeg.h" |
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typedef struct VDAContext { |
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AVFrame *tmp_frame; |
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} VDAContext; |
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static int vda_retrieve_data(AVCodecContext *s, AVFrame *frame) |
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{ |
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InputStream *ist = s->opaque; |
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VDAContext *vda = ist->hwaccel_ctx; |
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CVPixelBufferRef pixbuf = (CVPixelBufferRef)frame->data[3]; |
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OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf); |
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CVReturn err; |
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uint8_t *data[4] = { 0 }; |
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int linesize[4] = { 0 }; |
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int planes, ret, i; |
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av_frame_unref(vda->tmp_frame); |
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|
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switch (pixel_format) { |
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case kCVPixelFormatType_420YpCbCr8Planar: vda->tmp_frame->format = AV_PIX_FMT_YUV420P; break; |
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case kCVPixelFormatType_422YpCbCr8: vda->tmp_frame->format = AV_PIX_FMT_UYVY422; break; |
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default: |
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av_log(NULL, AV_LOG_ERROR, |
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"Unsupported pixel format: %u\n", pixel_format); |
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return AVERROR(ENOSYS); |
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} |
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vda->tmp_frame->width = frame->width; |
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vda->tmp_frame->height = frame->height; |
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ret = av_frame_get_buffer(vda->tmp_frame, 32); |
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if (ret < 0) |
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return ret; |
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err = CVPixelBufferLockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly); |
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if (err != kCVReturnSuccess) { |
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av_log(NULL, AV_LOG_ERROR, "Error locking the pixel buffer.\n"); |
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return AVERROR_UNKNOWN; |
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} |
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if (CVPixelBufferIsPlanar(pixbuf)) { |
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planes = CVPixelBufferGetPlaneCount(pixbuf); |
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for (i = 0; i < planes; i++) { |
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data[i] = CVPixelBufferGetBaseAddressOfPlane(pixbuf, i); |
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linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(pixbuf, i); |
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} |
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} else { |
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data[0] = CVPixelBufferGetBaseAddress(pixbuf); |
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linesize[0] = CVPixelBufferGetBytesPerRow(pixbuf); |
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} |
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av_image_copy(vda->tmp_frame->data, vda->tmp_frame->linesize, |
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(const uint8_t **)data, linesize, vda->tmp_frame->format, |
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frame->width, frame->height); |
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CVPixelBufferUnlockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly); |
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ret = av_frame_copy_props(vda->tmp_frame, frame); |
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if (ret < 0) |
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return ret; |
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av_frame_unref(frame); |
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av_frame_move_ref(frame, vda->tmp_frame); |
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return 0; |
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} |
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static void vda_uninit(AVCodecContext *s) |
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{ |
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InputStream *ist = s->opaque; |
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VDAContext *vda = ist->hwaccel_ctx; |
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ist->hwaccel_uninit = NULL; |
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ist->hwaccel_retrieve_data = NULL; |
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av_frame_free(&vda->tmp_frame); |
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av_vda_default_free(s); |
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av_freep(&ist->hwaccel_ctx); |
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} |
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int vda_init(AVCodecContext *s) |
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{ |
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InputStream *ist = s->opaque; |
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int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; |
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VDAContext *vda; |
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int ret; |
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vda = av_mallocz(sizeof(*vda)); |
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if (!vda) |
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return AVERROR(ENOMEM); |
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ist->hwaccel_ctx = vda; |
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ist->hwaccel_uninit = vda_uninit; |
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ist->hwaccel_retrieve_data = vda_retrieve_data; |
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vda->tmp_frame = av_frame_alloc(); |
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if (!vda->tmp_frame) { |
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ret = AVERROR(ENOMEM); |
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goto fail; |
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} |
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ret = av_vda_default_init(s); |
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if (ret < 0) { |
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av_log(NULL, loglevel, "Error creating VDA decoder.\n"); |
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goto fail; |
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} |
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return 0; |
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fail: |
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vda_uninit(s); |
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return ret; |
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} |
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@ -0,0 +1,187 @@ |
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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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#include <CoreServices/CoreServices.h> |
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#include "config.h" |
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#include "libavcodec/avcodec.h" |
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#if CONFIG_VDA |
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# include "libavcodec/vda.h" |
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#endif |
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#if CONFIG_VIDEOTOOLBOX |
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# include "libavcodec/videotoolbox.h" |
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#endif |
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#include "libavutil/imgutils.h" |
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#include "ffmpeg.h" |
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typedef struct VTContext { |
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AVFrame *tmp_frame; |
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} VTContext; |
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char *videotoolbox_pixfmt; |
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static int videotoolbox_retrieve_data(AVCodecContext *s, AVFrame *frame) |
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{ |
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InputStream *ist = s->opaque; |
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VTContext *vt = ist->hwaccel_ctx; |
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CVPixelBufferRef pixbuf = (CVPixelBufferRef)frame->data[3]; |
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OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf); |
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CVReturn err; |
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uint8_t *data[4] = { 0 }; |
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int linesize[4] = { 0 }; |
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int planes, ret, i; |
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char codec_str[32]; |
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av_frame_unref(vt->tmp_frame); |
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switch (pixel_format) { |
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case kCVPixelFormatType_420YpCbCr8Planar: vt->tmp_frame->format = AV_PIX_FMT_YUV420P; break; |
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case kCVPixelFormatType_422YpCbCr8: vt->tmp_frame->format = AV_PIX_FMT_UYVY422; break; |
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case kCVPixelFormatType_32BGRA: vt->tmp_frame->format = AV_PIX_FMT_BGRA; break; |
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#ifdef kCFCoreFoundationVersionNumber10_7 |
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case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange: vt->tmp_frame->format = AV_PIX_FMT_NV12; break; |
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#endif |
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default: |
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av_get_codec_tag_string(codec_str, sizeof(codec_str), s->codec_tag); |
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av_log(NULL, AV_LOG_ERROR, |
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"%s: Unsupported pixel format: %s\n", codec_str, videotoolbox_pixfmt); |
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return AVERROR(ENOSYS); |
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} |
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vt->tmp_frame->width = frame->width; |
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vt->tmp_frame->height = frame->height; |
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ret = av_frame_get_buffer(vt->tmp_frame, 32); |
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if (ret < 0) |
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return ret; |
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err = CVPixelBufferLockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly); |
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if (err != kCVReturnSuccess) { |
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av_log(NULL, AV_LOG_ERROR, "Error locking the pixel buffer.\n"); |
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return AVERROR_UNKNOWN; |
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} |
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if (CVPixelBufferIsPlanar(pixbuf)) { |
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planes = CVPixelBufferGetPlaneCount(pixbuf); |
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for (i = 0; i < planes; i++) { |
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data[i] = CVPixelBufferGetBaseAddressOfPlane(pixbuf, i); |
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linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(pixbuf, i); |
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} |
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} else { |
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data[0] = CVPixelBufferGetBaseAddress(pixbuf); |
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linesize[0] = CVPixelBufferGetBytesPerRow(pixbuf); |
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} |
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av_image_copy(vt->tmp_frame->data, vt->tmp_frame->linesize, |
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(const uint8_t **)data, linesize, vt->tmp_frame->format, |
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frame->width, frame->height); |
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ret = av_frame_copy_props(vt->tmp_frame, frame); |
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CVPixelBufferUnlockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly); |
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if (ret < 0) |
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return ret; |
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av_frame_unref(frame); |
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av_frame_move_ref(frame, vt->tmp_frame); |
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return 0; |
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} |
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static void videotoolbox_uninit(AVCodecContext *s) |
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{ |
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InputStream *ist = s->opaque; |
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VTContext *vt = ist->hwaccel_ctx; |
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ist->hwaccel_uninit = NULL; |
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ist->hwaccel_retrieve_data = NULL; |
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av_frame_free(&vt->tmp_frame); |
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if (ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX) { |
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#if CONFIG_VIDEOTOOLBOX |
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av_videotoolbox_default_free(s); |
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#endif |
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} else { |
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#if CONFIG_VDA |
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av_vda_default_free(s); |
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#endif |
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} |
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av_freep(&ist->hwaccel_ctx); |
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} |
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int videotoolbox_init(AVCodecContext *s) |
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{ |
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InputStream *ist = s->opaque; |
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int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; |
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int ret = 0; |
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VTContext *vt; |
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vt = av_mallocz(sizeof(*vt)); |
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if (!vt) |
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return AVERROR(ENOMEM); |
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ist->hwaccel_ctx = vt; |
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ist->hwaccel_uninit = videotoolbox_uninit; |
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ist->hwaccel_retrieve_data = videotoolbox_retrieve_data; |
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vt->tmp_frame = av_frame_alloc(); |
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if (!vt->tmp_frame) { |
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ret = AVERROR(ENOMEM); |
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goto fail; |
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} |
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if (ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX) { |
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#if CONFIG_VIDEOTOOLBOX |
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if (!videotoolbox_pixfmt) { |
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ret = av_videotoolbox_default_init(s); |
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} else { |
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AVVideotoolboxContext *vtctx = av_videotoolbox_alloc_context(); |
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CFStringRef pixfmt_str = CFStringCreateWithCString(kCFAllocatorDefault, |
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videotoolbox_pixfmt, |
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kCFStringEncodingUTF8); |
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vtctx->cv_pix_fmt_type = UTGetOSTypeFromString(pixfmt_str); |
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ret = av_videotoolbox_default_init2(s, vtctx); |
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CFRelease(pixfmt_str); |
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} |
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#endif |
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} else { |
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#if CONFIG_VDA |
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if (!videotoolbox_pixfmt) { |
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ret = av_vda_default_init(s); |
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} else { |
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AVVDAContext *vdactx = av_vda_alloc_context(); |
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CFStringRef pixfmt_str = CFStringCreateWithCString(kCFAllocatorDefault, |
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videotoolbox_pixfmt, |
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kCFStringEncodingUTF8); |
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vdactx->cv_pix_fmt_type = UTGetOSTypeFromString(pixfmt_str); |
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ret = av_vda_default_init2(s, vdactx); |
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CFRelease(pixfmt_str); |
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} |
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#endif |
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} |
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if (ret < 0) { |
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av_log(NULL, loglevel, |
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"Error creating %s decoder.\n", ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX ? "Videotoolbox" : "VDA"); |
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goto fail; |
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} |
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return 0; |
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fail: |
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videotoolbox_uninit(s); |
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return ret; |
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} |
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@ -0,0 +1,690 @@ |
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/*
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* Videotoolbox hardware acceleration |
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* |
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* copyright (c) 2012 Sebastien Zwickert |
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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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#include "config.h" |
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#if CONFIG_VIDEOTOOLBOX |
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# include "videotoolbox.h" |
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#else |
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# include "vda.h" |
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#endif |
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#include "vda_vt_internal.h" |
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#include "libavutil/avutil.h" |
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#include "bytestream.h" |
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#include "h264.h" |
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#include "mpegvideo.h" |
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|
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#ifndef kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder |
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# define kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder CFSTR("EnableHardwareAcceleratedVideoDecoder") |
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#endif |
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|
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#define VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING 12 |
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static void videotoolbox_buffer_release(void *opaque, uint8_t *data) |
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{ |
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CVPixelBufferRef cv_buffer = (CVImageBufferRef)data; |
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CVPixelBufferRelease(cv_buffer); |
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} |
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|
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static int videotoolbox_buffer_copy(VTContext *vtctx, |
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const uint8_t *buffer, |
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uint32_t size) |
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{ |
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void *tmp; |
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|
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tmp = av_fast_realloc(vtctx->bitstream, |
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&vtctx->allocated_size, |
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size); |
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|
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if (!tmp) |
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return AVERROR(ENOMEM); |
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|
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vtctx->bitstream = tmp; |
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memcpy(vtctx->bitstream, buffer, size); |
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vtctx->bitstream_size = size; |
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|
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return 0; |
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} |
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|
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int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame) |
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{ |
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frame->width = avctx->width; |
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frame->height = avctx->height; |
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frame->format = avctx->pix_fmt; |
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frame->buf[0] = av_buffer_alloc(1); |
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|
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if (!frame->buf[0]) |
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return AVERROR(ENOMEM); |
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|
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return 0; |
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} |
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|
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CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx) |
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{ |
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CFDataRef data = NULL; |
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|
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/* Each VCL NAL in the bistream sent to the decoder
|
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* is preceded by a 4 bytes length header. |
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* Change the avcC atom header if needed, to signal headers of 4 bytes. */ |
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if (avctx->extradata_size >= 4 && (avctx->extradata[4] & 0x03) != 0x03) { |
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uint8_t *rw_extradata = av_memdup(avctx->extradata, avctx->extradata_size); |
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|
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if (!rw_extradata) |
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return NULL; |
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|
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rw_extradata[4] |= 0x03; |
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|
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data = CFDataCreate(kCFAllocatorDefault, rw_extradata, avctx->extradata_size); |
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|
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av_freep(&rw_extradata); |
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} else { |
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data = CFDataCreate(kCFAllocatorDefault, avctx->extradata, avctx->extradata_size); |
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} |
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|
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return data; |
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} |
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|
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int ff_videotoolbox_buffer_create(VTContext *vtctx, AVFrame *frame) |
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{ |
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av_buffer_unref(&frame->buf[0]); |
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|
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frame->buf[0] = av_buffer_create((uint8_t*)vtctx->frame, |
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sizeof(vtctx->frame), |
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videotoolbox_buffer_release, |
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NULL, |
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AV_BUFFER_FLAG_READONLY); |
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if (!frame->buf[0]) { |
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return AVERROR(ENOMEM); |
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} |
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|
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frame->data[3] = (uint8_t*)vtctx->frame; |
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vtctx->frame = NULL; |
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|
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return 0; |
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} |
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|
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int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx, |
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const uint8_t *buffer, |
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uint32_t size) |
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{ |
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VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
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H264Context *h = avctx->priv_data; |
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|
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vtctx->bitstream_size = 0; |
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|
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if (h->is_avc == 1) { |
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return videotoolbox_buffer_copy(vtctx, buffer, size); |
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} |
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|
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return 0; |
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} |
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|
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int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx, |
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const uint8_t *buffer, |
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uint32_t size) |
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{ |
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VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
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H264Context *h = avctx->priv_data; |
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void *tmp; |
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|
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if (h->is_avc == 1) |
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return 0; |
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|
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tmp = av_fast_realloc(vtctx->bitstream, |
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&vtctx->allocated_size, |
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vtctx->bitstream_size+size+4); |
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if (!tmp) |
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return AVERROR(ENOMEM); |
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|
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vtctx->bitstream = tmp; |
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|
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AV_WB32(vtctx->bitstream + vtctx->bitstream_size, size); |
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memcpy(vtctx->bitstream + vtctx->bitstream_size + 4, buffer, size); |
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|
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vtctx->bitstream_size += size + 4; |
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|
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return 0; |
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} |
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|
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int ff_videotoolbox_uninit(AVCodecContext *avctx) |
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{ |
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VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
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if (vtctx) { |
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av_freep(&vtctx->bitstream); |
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if (vtctx->frame) |
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CVPixelBufferRelease(vtctx->frame); |
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} |
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|
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return 0; |
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} |
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|
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#if CONFIG_VIDEOTOOLBOX |
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static void videotoolbox_write_mp4_descr_length(PutByteContext *pb, int length) |
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{ |
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int i; |
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uint8_t b; |
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|
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for (i = 3; i >= 0; i--) { |
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b = (length >> (i * 7)) & 0x7F; |
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if (i != 0) |
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b |= 0x80; |
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|
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bytestream2_put_byteu(pb, b); |
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} |
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} |
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|
||||
static CFDataRef videotoolbox_esds_extradata_create(AVCodecContext *avctx) |
||||
{ |
||||
CFDataRef data; |
||||
uint8_t *rw_extradata; |
||||
PutByteContext pb; |
||||
int full_size = 3 + 5 + 13 + 5 + avctx->extradata_size + 3; |
||||
// ES_DescrTag data + DecoderConfigDescrTag + data + DecSpecificInfoTag + size + SLConfigDescriptor
|
||||
int config_size = 13 + 5 + avctx->extradata_size; |
||||
int s; |
||||
|
||||
if (!(rw_extradata = av_mallocz(full_size + VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING))) |
||||
return NULL; |
||||
|
||||
bytestream2_init_writer(&pb, rw_extradata, full_size + VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING); |
||||
bytestream2_put_byteu(&pb, 0); // version
|
||||
bytestream2_put_ne24(&pb, 0); // flags
|
||||
|
||||
// elementary stream descriptor
|
||||
bytestream2_put_byteu(&pb, 0x03); // ES_DescrTag
|
||||
videotoolbox_write_mp4_descr_length(&pb, full_size); |
||||
bytestream2_put_ne16(&pb, 0); // esid
|
||||
bytestream2_put_byteu(&pb, 0); // stream priority (0-32)
|
||||
|
||||
// decoder configuration descriptor
|
||||
bytestream2_put_byteu(&pb, 0x04); // DecoderConfigDescrTag
|
||||
videotoolbox_write_mp4_descr_length(&pb, config_size); |
||||
bytestream2_put_byteu(&pb, 32); // object type indication. 32 = CODEC_ID_MPEG4
|
||||
bytestream2_put_byteu(&pb, 0x11); // stream type
|
||||
bytestream2_put_ne24(&pb, 0); // buffer size
|
||||
bytestream2_put_ne32(&pb, 0); // max bitrate
|
||||
bytestream2_put_ne32(&pb, 0); // avg bitrate
|
||||
|
||||
// decoder specific descriptor
|
||||
bytestream2_put_byteu(&pb, 0x05); ///< DecSpecificInfoTag
|
||||
videotoolbox_write_mp4_descr_length(&pb, avctx->extradata_size); |
||||
|
||||
bytestream2_put_buffer(&pb, avctx->extradata, avctx->extradata_size); |
||||
|
||||
// SLConfigDescriptor
|
||||
bytestream2_put_byteu(&pb, 0x06); // SLConfigDescrTag
|
||||
bytestream2_put_byteu(&pb, 0x01); // length
|
||||
bytestream2_put_byteu(&pb, 0x02); //
|
||||
|
||||
s = bytestream2_size_p(&pb); |
||||
|
||||
data = CFDataCreate(kCFAllocatorDefault, rw_extradata, s); |
||||
|
||||
av_freep(&rw_extradata); |
||||
return data; |
||||
} |
||||
|
||||
static CMSampleBufferRef videotoolbox_sample_buffer_create(CMFormatDescriptionRef fmt_desc, |
||||
void *buffer, |
||||
int size) |
||||
{ |
||||
OSStatus status; |
||||
CMBlockBufferRef block_buf; |
||||
CMSampleBufferRef sample_buf; |
||||
|
||||
block_buf = NULL; |
||||
sample_buf = NULL; |
||||
|
||||
status = CMBlockBufferCreateWithMemoryBlock(kCFAllocatorDefault,// structureAllocator
|
||||
buffer, // memoryBlock
|
||||
size, // blockLength
|
||||
kCFAllocatorNull, // blockAllocator
|
||||
NULL, // customBlockSource
|
||||
0, // offsetToData
|
||||
size, // dataLength
|
||||
0, // flags
|
||||
&block_buf); |
||||
|
||||
if (!status) { |
||||
status = CMSampleBufferCreate(kCFAllocatorDefault, // allocator
|
||||
block_buf, // dataBuffer
|
||||
TRUE, // dataReady
|
||||
0, // makeDataReadyCallback
|
||||
0, // makeDataReadyRefcon
|
||||
fmt_desc, // formatDescription
|
||||
1, // numSamples
|
||||
0, // numSampleTimingEntries
|
||||
NULL, // sampleTimingArray
|
||||
0, // numSampleSizeEntries
|
||||
NULL, // sampleSizeArray
|
||||
&sample_buf); |
||||
} |
||||
|
||||
if (block_buf) |
||||
CFRelease(block_buf); |
||||
|
||||
return sample_buf; |
||||
} |
||||
|
||||
static void videotoolbox_decoder_callback(void *opaque, |
||||
void *sourceFrameRefCon, |
||||
OSStatus status, |
||||
VTDecodeInfoFlags flags, |
||||
CVImageBufferRef image_buffer, |
||||
CMTime pts, |
||||
CMTime duration) |
||||
{ |
||||
AVCodecContext *avctx = opaque; |
||||
VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
||||
|
||||
if (vtctx->frame) { |
||||
CVPixelBufferRelease(vtctx->frame); |
||||
vtctx->frame = NULL; |
||||
} |
||||
|
||||
if (!image_buffer) { |
||||
av_log(NULL, AV_LOG_DEBUG, "vt decoder cb: output image buffer is null\n"); |
||||
return; |
||||
} |
||||
|
||||
vtctx->frame = CVPixelBufferRetain(image_buffer); |
||||
} |
||||
|
||||
static OSStatus videotoolbox_session_decode_frame(AVCodecContext *avctx) |
||||
{ |
||||
OSStatus status; |
||||
CMSampleBufferRef sample_buf; |
||||
AVVideotoolboxContext *videotoolbox = avctx->hwaccel_context; |
||||
VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
||||
|
||||
sample_buf = videotoolbox_sample_buffer_create(videotoolbox->cm_fmt_desc, |
||||
vtctx->bitstream, |
||||
vtctx->bitstream_size); |
||||
|
||||
if (!sample_buf) |
||||
return -1; |
||||
|
||||
status = VTDecompressionSessionDecodeFrame(videotoolbox->session, |
||||
sample_buf, |
||||
0, // decodeFlags
|
||||
NULL, // sourceFrameRefCon
|
||||
0); // infoFlagsOut
|
||||
if (status == noErr) |
||||
status = VTDecompressionSessionWaitForAsynchronousFrames(videotoolbox->session); |
||||
|
||||
CFRelease(sample_buf); |
||||
|
||||
return status; |
||||
} |
||||
|
||||
static int videotoolbox_common_end_frame(AVCodecContext *avctx, AVFrame *frame) |
||||
{ |
||||
int status; |
||||
AVVideotoolboxContext *videotoolbox = avctx->hwaccel_context; |
||||
VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
||||
|
||||
if (!videotoolbox->session || !vtctx->bitstream) |
||||
return AVERROR_INVALIDDATA; |
||||
|
||||
status = videotoolbox_session_decode_frame(avctx); |
||||
|
||||
if (status) { |
||||
av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status); |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
|
||||
if (!vtctx->frame) |
||||
return AVERROR_UNKNOWN; |
||||
|
||||
return ff_videotoolbox_buffer_create(vtctx, frame); |
||||
} |
||||
|
||||
static int videotoolbox_h264_end_frame(AVCodecContext *avctx) |
||||
{ |
||||
H264Context *h = avctx->priv_data; |
||||
AVFrame *frame = h->cur_pic_ptr->f; |
||||
|
||||
return videotoolbox_common_end_frame(avctx, frame); |
||||
} |
||||
|
||||
static int videotoolbox_mpeg_start_frame(AVCodecContext *avctx, |
||||
const uint8_t *buffer, |
||||
uint32_t size) |
||||
{ |
||||
VTContext *vtctx = avctx->internal->hwaccel_priv_data; |
||||
|
||||
return videotoolbox_buffer_copy(vtctx, buffer, size); |
||||
} |
||||
|
||||
static int videotoolbox_mpeg_decode_slice(AVCodecContext *avctx, |
||||
const uint8_t *buffer, |
||||
uint32_t size) |
||||
{ |
||||
return 0; |
||||
} |
||||
|
||||
static int videotoolbox_mpeg_end_frame(AVCodecContext *avctx) |
||||
{ |
||||
MpegEncContext *s = avctx->priv_data; |
||||
AVFrame *frame = s->current_picture_ptr->f; |
||||
|
||||
return videotoolbox_common_end_frame(avctx, frame); |
||||
} |
||||
|
||||
static CFDictionaryRef videotoolbox_decoder_config_create(CMVideoCodecType codec_type, |
||||
AVCodecContext *avctx) |
||||
{ |
||||
CFMutableDictionaryRef config_info = CFDictionaryCreateMutable(kCFAllocatorDefault, |
||||
1, |
||||
&kCFTypeDictionaryKeyCallBacks, |
||||
&kCFTypeDictionaryValueCallBacks); |
||||
|
||||
CFDictionarySetValue(config_info, |
||||
kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder, |
||||
kCFBooleanTrue); |
||||
|
||||
if (avctx->extradata_size) { |
||||
CFMutableDictionaryRef avc_info; |
||||
CFDataRef data = NULL; |
||||
|
||||
avc_info = CFDictionaryCreateMutable(kCFAllocatorDefault, |
||||
1, |
||||
&kCFTypeDictionaryKeyCallBacks, |
||||
&kCFTypeDictionaryValueCallBacks); |
||||
|
||||
switch (codec_type) { |
||||
case kCMVideoCodecType_MPEG4Video : |
||||
data = videotoolbox_esds_extradata_create(avctx); |
||||
if (data) |
||||
CFDictionarySetValue(avc_info, CFSTR("esds"), data); |
||||
break; |
||||
case kCMVideoCodecType_H264 : |
||||
data = ff_videotoolbox_avcc_extradata_create(avctx); |
||||
if (data) |
||||
CFDictionarySetValue(avc_info, CFSTR("avcC"), data); |
||||
break; |
||||
default: |
||||
break; |
||||
} |
||||
|
||||
CFDictionarySetValue(config_info, |
||||
kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms, |
||||
avc_info); |
||||
|
||||
if (data) |
||||
CFRelease(data); |
||||
|
||||
CFRelease(avc_info); |
||||
} |
||||
return config_info; |
||||
} |
||||
|
||||
static CFDictionaryRef videotoolbox_buffer_attributes_create(int width, |
||||
int height, |
||||
OSType pix_fmt) |
||||
{ |
||||
CFMutableDictionaryRef buffer_attributes; |
||||
CFMutableDictionaryRef io_surface_properties; |
||||
CFNumberRef cv_pix_fmt; |
||||
CFNumberRef w; |
||||
CFNumberRef h; |
||||
|
||||
w = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &width); |
||||
h = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &height); |
||||
cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &pix_fmt); |
||||
|
||||
buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault, |
||||
4, |
||||
&kCFTypeDictionaryKeyCallBacks, |
||||
&kCFTypeDictionaryValueCallBacks); |
||||
io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault, |
||||
0, |
||||
&kCFTypeDictionaryKeyCallBacks, |
||||
&kCFTypeDictionaryValueCallBacks); |
||||
|
||||
CFDictionarySetValue(buffer_attributes, kCVPixelBufferPixelFormatTypeKey, cv_pix_fmt); |
||||
CFDictionarySetValue(buffer_attributes, kCVPixelBufferIOSurfacePropertiesKey, io_surface_properties); |
||||
CFDictionarySetValue(buffer_attributes, kCVPixelBufferWidthKey, w); |
||||
CFDictionarySetValue(buffer_attributes, kCVPixelBufferHeightKey, h); |
||||
|
||||
CFRelease(io_surface_properties); |
||||
CFRelease(cv_pix_fmt); |
||||
CFRelease(w); |
||||
CFRelease(h); |
||||
|
||||
return buffer_attributes; |
||||
} |
||||
|
||||
static CMVideoFormatDescriptionRef videotoolbox_format_desc_create(CMVideoCodecType codec_type, |
||||
CFDictionaryRef decoder_spec, |
||||
int width, |
||||
int height) |
||||
{ |
||||
CMFormatDescriptionRef cm_fmt_desc; |
||||
OSStatus status; |
||||
|
||||
status = CMVideoFormatDescriptionCreate(kCFAllocatorDefault, |
||||
codec_type, |
||||
width, |
||||
height, |
||||
decoder_spec, // Dictionary of extension
|
||||
&cm_fmt_desc); |
||||
|
||||
if (status) |
||||
return NULL; |
||||
|
||||
return cm_fmt_desc; |
||||
} |
||||
|
||||
static int videotoolbox_default_init(AVCodecContext *avctx) |
||||
{ |
||||
AVVideotoolboxContext *videotoolbox = avctx->hwaccel_context; |
||||
OSStatus status; |
||||
VTDecompressionOutputCallbackRecord decoder_cb; |
||||
CFDictionaryRef decoder_spec; |
||||
CFDictionaryRef buf_attr; |
||||
int32_t pix_fmt; |
||||
|
||||
if (!videotoolbox) { |
||||
av_log(avctx, AV_LOG_ERROR, "hwaccel context is not set\n"); |
||||
return -1; |
||||
} |
||||
|
||||
switch( avctx->codec_id ) { |
||||
case AV_CODEC_ID_H263 : |
||||
videotoolbox->cm_codec_type = kCMVideoCodecType_H263; |
||||
break; |
||||
case AV_CODEC_ID_H264 : |
||||
videotoolbox->cm_codec_type = kCMVideoCodecType_H264; |
||||
break; |
||||
case AV_CODEC_ID_MPEG1VIDEO : |
||||
videotoolbox->cm_codec_type = kCMVideoCodecType_MPEG1Video; |
||||
break; |
||||
case AV_CODEC_ID_MPEG2VIDEO : |
||||
videotoolbox->cm_codec_type = kCMVideoCodecType_MPEG2Video; |
||||
break; |
||||
case AV_CODEC_ID_MPEG4 : |
||||
videotoolbox->cm_codec_type = kCMVideoCodecType_MPEG4Video; |
||||
break; |
||||
default : |
||||
break; |
||||
} |
||||
|
||||
pix_fmt = videotoolbox->cv_pix_fmt_type; |
||||
|
||||
decoder_spec = videotoolbox_decoder_config_create(videotoolbox->cm_codec_type, avctx); |
||||
|
||||
videotoolbox->cm_fmt_desc = videotoolbox_format_desc_create(videotoolbox->cm_codec_type, |
||||
decoder_spec, |
||||
avctx->width, |
||||
avctx->height); |
||||
if (!videotoolbox->cm_fmt_desc) { |
||||
if (decoder_spec) |
||||
CFRelease(decoder_spec); |
||||
|
||||
av_log(avctx, AV_LOG_ERROR, "format description creation failed\n"); |
||||
return -1; |
||||
} |
||||
|
||||
buf_attr = videotoolbox_buffer_attributes_create(avctx->width, |
||||
avctx->height, |
||||
videotoolbox->cv_pix_fmt_type); |
||||
|
||||
decoder_cb.decompressionOutputCallback = videotoolbox_decoder_callback; |
||||
decoder_cb.decompressionOutputRefCon = avctx; |
||||
|
||||
status = VTDecompressionSessionCreate(NULL, // allocator
|
||||
videotoolbox->cm_fmt_desc, // videoFormatDescription
|
||||
decoder_spec, // videoDecoderSpecification
|
||||
buf_attr, // destinationImageBufferAttributes
|
||||
&decoder_cb, // outputCallback
|
||||
&videotoolbox->session); // decompressionSessionOut
|
||||
|
||||
if (decoder_spec) |
||||
CFRelease(decoder_spec); |
||||
if (buf_attr) |
||||
CFRelease(buf_attr); |
||||
|
||||
switch (status) { |
||||
case kVTVideoDecoderNotAvailableNowErr: |
||||
case kVTVideoDecoderUnsupportedDataFormatErr: |
||||
return AVERROR(ENOSYS); |
||||
case kVTVideoDecoderMalfunctionErr: |
||||
return AVERROR(EINVAL); |
||||
case kVTVideoDecoderBadDataErr : |
||||
return AVERROR_INVALIDDATA; |
||||
case 0: |
||||
return 0; |
||||
default: |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
} |
||||
|
||||
static void videotoolbox_default_free(AVCodecContext *avctx) |
||||
{ |
||||
AVVideotoolboxContext *videotoolbox = avctx->hwaccel_context; |
||||
|
||||
if (videotoolbox) { |
||||
if (videotoolbox->cm_fmt_desc) |
||||
CFRelease(videotoolbox->cm_fmt_desc); |
||||
|
||||
if (videotoolbox->session) |
||||
VTDecompressionSessionInvalidate(videotoolbox->session); |
||||
} |
||||
} |
||||
|
||||
AVHWAccel ff_h263_videotoolbox_hwaccel = { |
||||
.name = "h263_videotoolbox", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_H263, |
||||
.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX, |
||||
.alloc_frame = ff_videotoolbox_alloc_frame, |
||||
.start_frame = videotoolbox_mpeg_start_frame, |
||||
.decode_slice = videotoolbox_mpeg_decode_slice, |
||||
.end_frame = videotoolbox_mpeg_end_frame, |
||||
.uninit = ff_videotoolbox_uninit, |
||||
.priv_data_size = sizeof(VTContext), |
||||
}; |
||||
|
||||
AVHWAccel ff_h264_videotoolbox_hwaccel = { |
||||
.name = "h264_videotoolbox", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_H264, |
||||
.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX, |
||||
.alloc_frame = ff_videotoolbox_alloc_frame, |
||||
.start_frame = ff_videotoolbox_h264_start_frame, |
||||
.decode_slice = ff_videotoolbox_h264_decode_slice, |
||||
.end_frame = videotoolbox_h264_end_frame, |
||||
.uninit = ff_videotoolbox_uninit, |
||||
.priv_data_size = sizeof(VTContext), |
||||
}; |
||||
|
||||
AVHWAccel ff_mpeg1_videotoolbox_hwaccel = { |
||||
.name = "mpeg1_videotoolbox", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_MPEG1VIDEO, |
||||
.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX, |
||||
.alloc_frame = ff_videotoolbox_alloc_frame, |
||||
.start_frame = videotoolbox_mpeg_start_frame, |
||||
.decode_slice = videotoolbox_mpeg_decode_slice, |
||||
.end_frame = videotoolbox_mpeg_end_frame, |
||||
.uninit = ff_videotoolbox_uninit, |
||||
.priv_data_size = sizeof(VTContext), |
||||
}; |
||||
|
||||
AVHWAccel ff_mpeg2_videotoolbox_hwaccel = { |
||||
.name = "mpeg2_videotoolbox", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_MPEG2VIDEO, |
||||
.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX, |
||||
.alloc_frame = ff_videotoolbox_alloc_frame, |
||||
.start_frame = videotoolbox_mpeg_start_frame, |
||||
.decode_slice = videotoolbox_mpeg_decode_slice, |
||||
.end_frame = videotoolbox_mpeg_end_frame, |
||||
.uninit = ff_videotoolbox_uninit, |
||||
.priv_data_size = sizeof(VTContext), |
||||
}; |
||||
|
||||
AVHWAccel ff_mpeg4_videotoolbox_hwaccel = { |
||||
.name = "mpeg4_videotoolbox", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_MPEG4, |
||||
.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX, |
||||
.alloc_frame = ff_videotoolbox_alloc_frame, |
||||
.start_frame = videotoolbox_mpeg_start_frame, |
||||
.decode_slice = videotoolbox_mpeg_decode_slice, |
||||
.end_frame = videotoolbox_mpeg_end_frame, |
||||
.uninit = ff_videotoolbox_uninit, |
||||
.priv_data_size = sizeof(VTContext), |
||||
}; |
||||
|
||||
AVVideotoolboxContext *av_videotoolbox_alloc_context(void) |
||||
{ |
||||
AVVideotoolboxContext *ret = av_mallocz(sizeof(*ret)); |
||||
|
||||
if (ret) { |
||||
ret->output_callback = videotoolbox_decoder_callback; |
||||
ret->cv_pix_fmt_type = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange; |
||||
} |
||||
|
||||
return ret; |
||||
} |
||||
|
||||
int av_videotoolbox_default_init(AVCodecContext *avctx) |
||||
{ |
||||
return av_videotoolbox_default_init2(avctx, NULL); |
||||
} |
||||
|
||||
int av_videotoolbox_default_init2(AVCodecContext *avctx, AVVideotoolboxContext *vtctx) |
||||
{ |
||||
avctx->hwaccel_context = vtctx ?: av_videotoolbox_alloc_context(); |
||||
if (!avctx->hwaccel_context) |
||||
return AVERROR(ENOMEM); |
||||
return videotoolbox_default_init(avctx); |
||||
} |
||||
|
||||
void av_videotoolbox_default_free(AVCodecContext *avctx) |
||||
{ |
||||
|
||||
videotoolbox_default_free(avctx); |
||||
av_freep(&avctx->hwaccel_context); |
||||
} |
||||
#endif /* CONFIG_VIDEOTOOLBOX */ |
||||
@ -0,0 +1,126 @@ |
||||
/*
|
||||
* Videotoolbox hardware acceleration |
||||
* |
||||
* copyright (c) 2012 Sebastien Zwickert |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_VIDEOTOOLBOX_H |
||||
#define AVCODEC_VIDEOTOOLBOX_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavc_codec_hwaccel_videotoolbox |
||||
* Public libavcodec Videotoolbox header. |
||||
*/ |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#define Picture QuickdrawPicture |
||||
#include <VideoToolbox/VideoToolbox.h> |
||||
#undef Picture |
||||
|
||||
#include "libavcodec/avcodec.h" |
||||
|
||||
/**
|
||||
* This struct holds all the information that needs to be passed |
||||
* between the caller and libavcodec for initializing Videotoolbox decoding. |
||||
* Its size is not a part of the public ABI, it must be allocated with |
||||
* av_videotoolbox_alloc_context() and freed with av_free(). |
||||
*/ |
||||
typedef struct AVVideotoolboxContext { |
||||
/**
|
||||
* Videotoolbox decompression session object. |
||||
* Created and freed the caller. |
||||
*/ |
||||
VTDecompressionSessionRef session; |
||||
|
||||
/**
|
||||
* The output callback that must be passed to the session. |
||||
* Set by av_videottoolbox_default_init() |
||||
*/ |
||||
VTDecompressionOutputCallback output_callback; |
||||
|
||||
/**
|
||||
* CVPixelBuffer Format Type that Videotoolbox will use for decoded frames. |
||||
* set by the caller. |
||||
*/ |
||||
OSType cv_pix_fmt_type; |
||||
|
||||
/**
|
||||
* CoreMedia Format Description that Videotoolbox will use to create the decompression session. |
||||
* Set by the caller. |
||||
*/ |
||||
CMVideoFormatDescriptionRef cm_fmt_desc; |
||||
|
||||
/**
|
||||
* CoreMedia codec type that Videotoolbox will use to create the decompression session. |
||||
* Set by the caller. |
||||
*/ |
||||
int cm_codec_type; |
||||
} AVVideotoolboxContext; |
||||
|
||||
/**
|
||||
* Allocate and initialize a Videotoolbox context. |
||||
* |
||||
* This function should be called from the get_format() callback when the caller |
||||
* selects the AV_PIX_FMT_VIDETOOLBOX format. The caller must then create |
||||
* the decoder object (using the output callback provided by libavcodec) that |
||||
* will be used for Videotoolbox-accelerated decoding. |
||||
* |
||||
* When decoding with Videotoolbox is finished, the caller must destroy the decoder |
||||
* object and free the Videotoolbox context using av_free(). |
||||
* |
||||
* @return the newly allocated context or NULL on failure |
||||
*/ |
||||
AVVideotoolboxContext *av_videotoolbox_alloc_context(void); |
||||
|
||||
/**
|
||||
* This is a convenience function that creates and sets up the Videotoolbox context using |
||||
* an internal implementation. |
||||
* |
||||
* @param avctx the corresponding codec context |
||||
* |
||||
* @return >= 0 on success, a negative AVERROR code on failure |
||||
*/ |
||||
int av_videotoolbox_default_init(AVCodecContext *avctx); |
||||
|
||||
/**
|
||||
* This is a convenience function that creates and sets up the Videotoolbox context using |
||||
* an internal implementation. |
||||
* |
||||
* @param avctx the corresponding codec context |
||||
* @param vtctx the Videotoolbox context to use |
||||
* |
||||
* @return >= 0 on success, a negative AVERROR code on failure |
||||
*/ |
||||
int av_videotoolbox_default_init2(AVCodecContext *avctx, AVVideotoolboxContext *vtctx); |
||||
|
||||
/**
|
||||
* This function must be called to free the Videotoolbox context initialized with |
||||
* av_videotoolbox_default_init(). |
||||
* |
||||
* @param avctx the corresponding codec context |
||||
*/ |
||||
void av_videotoolbox_default_free(AVCodecContext *avctx); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVCODEC_VIDEOTOOLBOX_H */ |
||||
Loading…
Reference in new issue