[FFmpeg-devel] [PATCH] lavc/videotoolbox: fix H.264 hwaccel init issue
pon pon
pon.pon.3876098iu76.ponpon at gmail.com
Fri Jun 3 04:47:19 CEST 2016
some problems of https://trac.ffmpeg.org/ticket/5595 are fixed.
can playback 480p.mp4, 720p.mp4, 1080p.mp4 with videotoolbox on osx1095.
test.mp4 may be supported by videdotoolbox hardware decoding because can
playback it with commands on #5272.
ponpon
2016-06-02 11:06 GMT+09:00 Rick Kern <kernrj at gmail.com>:
> Fixes VTDecompressionSessionCreate() error.
>
> Signed-off-by: Rick Kern <kernrj at gmail.com>
> ---
> libavcodec/videotoolbox.c | 59
> ++++++++++++++++++++++++++++++++++++-----------
> 1 file changed, 45 insertions(+), 14 deletions(-)
>
> diff --git a/libavcodec/videotoolbox.c b/libavcodec/videotoolbox.c
> index 2f4d531..cadfb23 100644
> --- a/libavcodec/videotoolbox.c
> +++ b/libavcodec/videotoolbox.c
> @@ -487,23 +487,53 @@ static CFDictionaryRef
> videotoolbox_buffer_attributes_create(int width,
> return buffer_attributes;
> }
>
> -static CMVideoFormatDescriptionRef
> videotoolbox_format_desc_create(CMVideoCodecType codec_type,
> +static CMVideoFormatDescriptionRef
> videotoolbox_format_desc_create(AVCodecContext *avctx,
> +
> 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;
> + CMFormatDescriptionRef cm_fmt_desc = NULL;
> + int status;
> + H264Context *h = codec_type == kCMVideoCodecType_H264 ?
> avctx->priv_data : NULL;
> +
> + if (h && h->sps.data_size && h->pps.data_size) {
> + int ps_count = 2;
> + const uint8_t **ps_data = av_malloc(sizeof(uint8_t*) * ps_count);
> + size_t *ps_sizes = av_malloc(sizeof(size_t) * ps_count);
> +
> + ps_data[0] = h->sps.data;
> + ps_sizes[0] = h->sps.data_size;
> +
> + ps_data[1] = h->pps.data;
> + ps_sizes[1] = h->pps.data_size;
> +
> + status = CMVideoFormatDescriptionCreateFromH264ParameterSets(NULL,
> +
> ps_count,
> +
> ps_data,
> +
> ps_sizes,
> + 4,
> +
> &cm_fmt_desc);
> + av_freep(&ps_sizes);
> + av_freep(&ps_data);
> +
> + if (status) {
> + av_log(avctx, AV_LOG_ERROR, "Error creating H.264 format
> description: %d\n", status);
> + return NULL;
> + }
> + } else {
> + status = CMVideoFormatDescriptionCreate(kCFAllocatorDefault,
> + codec_type,
> + width,
> + height,
> + decoder_spec, //
> Dictionary of extension
> + &cm_fmt_desc);
> +
> + if (status) {
> + av_log(avctx, AV_LOG_ERROR, "Error creating format
> description: %d\n", status);
> + return NULL;
> + }
> + }
>
> return cm_fmt_desc;
> }
> @@ -543,7 +573,8 @@ static int videotoolbox_default_init(AVCodecContext
> *avctx)
>
> decoder_spec =
> videotoolbox_decoder_config_create(videotoolbox->cm_codec_type, avctx);
>
> - videotoolbox->cm_fmt_desc =
> videotoolbox_format_desc_create(videotoolbox->cm_codec_type,
> + videotoolbox->cm_fmt_desc = videotoolbox_format_desc_create(avctx,
> +
> videotoolbox->cm_codec_type,
>
> decoder_spec,
>
> avctx->width,
>
> avctx->height);
> --
> 2.7.4
>
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