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avcodecpar: switch to the new channel layout API

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Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Vittorio Giovara 2017-03-31 19:07:54 +02:00 committed by James Almer
parent db6efa1815
commit 276c06726f
3 changed files with 56 additions and 6 deletions
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34
libavcodec/codec_par.c
View File

@ -31,12 +31,14 @@
static void codec_parameters_reset(AVCodecParameters *par)
{
av_freep(&par->extradata);
av_channel_layout_uninit(&par->ch_layout);
memset(par, 0, sizeof(*par));
par->codec_type = AVMEDIA_TYPE_UNKNOWN;
par->codec_id = AV_CODEC_ID_NONE;
par->format = -1;
par->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
par->field_order = AV_FIELD_UNKNOWN;
par->color_range = AVCOL_RANGE_UNSPECIFIED;
par->color_primaries = AVCOL_PRI_UNSPECIFIED;
@ -71,6 +73,8 @@ void avcodec_parameters_free(AVCodecParameters **ppar)
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
{
int ret;
codec_parameters_reset(dst);
memcpy(dst, src, sizeof(*dst));
@ -84,6 +88,10 @@ int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src
dst->extradata_size = src->extradata_size;
}
ret = av_channel_layout_copy(&dst->ch_layout, &src->ch_layout);
if (ret < 0)
return ret;
return 0;
}
@ -118,8 +126,19 @@ int avcodec_parameters_from_context(AVCodecParameters *par,
break;
case AVMEDIA_TYPE_AUDIO:
par->format = codec->sample_fmt;
par->channel_layout = codec->channel_layout;
par->channels = codec->channels;
if (codec->channel_layout)
av_channel_layout_from_mask(&par->ch_layout, codec->channel_layout);
else {
par->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
par->ch_layout.nb_channels = codec->channels;
}
#if FF_API_OLD_CHANNEL_LAYOUT
FF_DISABLE_DEPRECATION_WARNINGS
par->channel_layout = par->ch_layout.order == AV_CHANNEL_ORDER_NATIVE ?
par->ch_layout.u.mask : 0;
par->channels = par->ch_layout.nb_channels;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
par->sample_rate = codec->sample_rate;
par->block_align = codec->block_align;
par->frame_size = codec->frame_size;
@ -173,8 +192,19 @@ int avcodec_parameters_to_context(AVCodecContext *codec,
break;
case AVMEDIA_TYPE_AUDIO:
codec->sample_fmt = par->format;
if (par->ch_layout.nb_channels) {
codec->channel_layout = par->ch_layout.order == AV_CHANNEL_ORDER_NATIVE ?
par->ch_layout.u.mask : 0;
codec->channels = par->ch_layout.nb_channels;
}
#if FF_API_OLD_CHANNEL_LAYOUT
else {
FF_DISABLE_DEPRECATION_WARNINGS
codec->channel_layout = par->channel_layout;
codec->channels = par->channels;
FF_ENABLE_DEPRECATION_WARNINGS
}
#endif
codec->sample_rate = par->sample_rate;
codec->block_align = par->block_align;
codec->frame_size = par->frame_size;

12
libavcodec/codec_par.h
View File

@ -24,6 +24,7 @@
#include <stdint.h>
#include "libavutil/avutil.h"
#include "libavutil/channel_layout.h"
#include "libavutil/rational.h"
#include "libavutil/pixfmt.h"
@ -154,16 +155,22 @@ typedef struct AVCodecParameters {
*/
int video_delay;
#if FF_API_OLD_CHANNEL_LAYOUT
/**
* Audio only. The channel layout bitmask. May be 0 if the channel layout is
* unknown or unspecified, otherwise the number of bits set must be equal to
* the channels field.
* @deprecated use ch_layout
*/
attribute_deprecated
uint64_t channel_layout;
/**
* Audio only. The number of audio channels.
* @deprecated use ch_layout.nb_channels
*/
attribute_deprecated
int channels;
#endif
/**
* Audio only. The number of audio samples per second.
*/
@ -198,6 +205,11 @@ typedef struct AVCodecParameters {
* Audio only. Number of samples to skip after a discontinuity.
*/
int seek_preroll;
/**
* Audio only. The channel layout and number of channels.
*/
AVChannelLayout ch_layout;
} AVCodecParameters;
/**

12
libavcodec/utils.c
View File

@ -814,8 +814,16 @@ int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
{
int duration = get_audio_frame_duration(par->codec_id, par->sample_rate,
par->channels, par->block_align,
int channels = par->ch_layout.nb_channels;
int duration;
#if FF_API_OLD_CHANNEL_LAYOUT
FF_DISABLE_DEPRECATION_WARNINGS
if (!channels)
channels = par->channels;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
duration = get_audio_frame_duration(par->codec_id, par->sample_rate,
channels, par->block_align,
par->codec_tag, par->bits_per_coded_sample,
par->bit_rate, par->extradata, par->frame_size,
frame_bytes);