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lavfi: add a channels field to AVFilterLink. 

Also: fix af_pan and af_aresample, that forgot to update
audio->channels.
This commit is contained in:
Nicolas George 2012-12-02 16:31:15 +01:00
parent a9275b4f69
commit 238edd2fe3
6 changed files with 22 additions and 2 deletions
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1
libavfilter/af_aresample.c
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@ -184,6 +184,7 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamplesref)
avfilter_copy_buffer_ref_props(outsamplesref, insamplesref);
outsamplesref->format = outlink->format;
outsamplesref->audio->channels = outlink->channels;
outsamplesref->audio->channel_layout = outlink->channel_layout;
outsamplesref->audio->sample_rate = outlink->sample_rate;

1
libavfilter/af_pan.c
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@ -364,6 +364,7 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
swr_convert(pan->swr, outsamples->data, n, (void *)insamples->data, n);
avfilter_copy_buffer_ref_props(outsamples, insamples);
outsamples->audio->channel_layout = outlink->channel_layout;
outsamples->audio->channels = outlink->channels;
ret = ff_filter_frame(outlink, outsamples);
avfilter_unref_buffer(insamples);

6
libavfilter/audio.c
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@ -93,6 +93,7 @@ AVFilterBufferRef* avfilter_get_audio_buffer_ref_from_arrays(uint8_t **data,
enum AVSampleFormat sample_fmt,
uint64_t channel_layout)
{
int channels = av_get_channel_layout_nb_channels(channel_layout);
int planes;
AVFilterBuffer *samples = av_mallocz(sizeof(*samples));
AVFilterBufferRef *samplesref = av_mallocz(sizeof(*samplesref));
@ -107,9 +108,9 @@ AVFilterBufferRef* avfilter_get_audio_buffer_ref_from_arrays(uint8_t **data,
samplesref->audio->nb_samples = nb_samples;
samplesref->audio->channel_layout = channel_layout;
samplesref->audio->channels = channels;
planes = av_sample_fmt_is_planar(sample_fmt) ?
av_get_channel_layout_nb_channels(channel_layout) : 1;
planes = av_sample_fmt_is_planar(sample_fmt) ? channels : 1;
/* make sure the buffer gets read permission or it's useless for output */
samplesref->perms = perms | AV_PERM_READ;
@ -225,6 +226,7 @@ int ff_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
int ret = 0;
av_assert1(samplesref->format == link->format);
av_assert1(samplesref->audio->channels == link->channels);
av_assert1(samplesref->audio->channel_layout == link->channel_layout);
av_assert1(samplesref->audio->sample_rate == link->sample_rate);

5
libavfilter/avfilter.c
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@ -164,6 +164,11 @@ void avfilter_link_free(AVFilterLink **link)
av_freep(link);
}
int avfilter_link_get_channels(AVFilterLink *link)
{
return link->channels;
}
void avfilter_link_set_closed(AVFilterLink *link, int closed)
{
link->closed = closed;

10
libavfilter/avfilter.h
View File

@ -699,6 +699,11 @@ struct AVFilterLink {
* filter.
*/
int closed;
/**
* Number of channels.
*/
int channels;
};
/**
@ -718,6 +723,11 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad,
*/
void avfilter_link_free(AVFilterLink **link);
/**
* Get the number of channels of a link.
*/
int avfilter_link_get_channels(AVFilterLink *link);
/**
* Set the closed field of a link.
*/

1
libavfilter/avfiltergraph.c
View File

@ -473,6 +473,7 @@ static int pick_format(AVFilterLink *link, AVFilterLink *ref)
}
link->in_channel_layouts->nb_channel_layouts = 1;
link->channel_layout = link->in_channel_layouts->channel_layouts[0];
link->channels = av_get_channel_layout_nb_channels(link->channel_layout);
}
ff_formats_unref(&link->in_formats);