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lavc: add a channel_layout field to AVFrame. 

The field is filled with the codec context information.

FIXME need a minor version bump.
This commit is contained in:
Nicolas George 2012-04-28 13:02:41 +02:00
parent 82c71913e4
commit 4b0521eca9
3 changed files with 13 additions and 0 deletions
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10
libavcodec/avcodec.h
View File

@ -1257,6 +1257,16 @@ typedef struct AVFrame {
* - decoding: Read by user.
*/
int64_t pkt_pos;
/**
* channel layout of the audio frame
* - encoding: unused
* - decoding: read by user.
* Code outside libavcodec should access this field using:
* av_opt_ptr(avcodec_get_frame_class(), frame, "channel_layout")
*/
int64_t channel_layout;
} AVFrame;
struct AVCodecInternal;

1
libavcodec/options.c
View File

@ -239,6 +239,7 @@ static const AVOption frame_options[]={
{"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
{"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
{"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.dbl = -1 }, 0, INT_MAX, 0},
{"channel_layout", "", FOFFSET(channel_layout), AV_OPT_TYPE_INT64, {.dbl = 0 }, 0, INT64_MAX, 0},
{NULL},
};

2
libavcodec/utils.c
View File

@ -1545,6 +1545,8 @@ int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
frame->pkt_dts = avpkt->dts;
if (frame->format == AV_SAMPLE_FMT_NONE)
frame->format = avctx->sample_fmt;
if (!frame->channel_layout)
frame->channel_layout = avctx->channel_layout;
}
avctx->pkt = NULL;