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pan: use ff_parse_channel_layout() instead of av_get_channel_layout(). 

This allow specifying hexadecimal channel layout, and also handle the
error printing internally.
This commit is contained in:
Clément Bœsch 2012-05-17 19:32:17 +02:00
parent 7c2bb79f3b
commit 48f30595f5
1 changed files with 5 additions and 6 deletions
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11
libavfilter/af_pan.c
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@ -34,6 +34,7 @@
#include "audio.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#define MAX_CHANNELS 63
@ -98,7 +99,7 @@ static av_cold int init(AVFilterContext *ctx, const char *args0, void *opaque)
{
PanContext *const pan = ctx->priv;
char *arg, *arg0, *tokenizer, *args = av_strdup(args0);
int out_ch_id, in_ch_id, len, named;
int out_ch_id, in_ch_id, len, named, ret;
int nb_in_channels[2] = { 0, 0 }; // number of unnamed and named input channels
double gain;
@ -111,11 +112,9 @@ static av_cold int init(AVFilterContext *ctx, const char *args0, void *opaque)
if (!args)
return AVERROR(ENOMEM);
arg = av_strtok(args, ":", &tokenizer);
pan->out_channel_layout = av_get_channel_layout(arg);
if (!pan->out_channel_layout) {
av_log(ctx, AV_LOG_ERROR, "Unknown channel layout \"%s\"\n", arg);
return AVERROR(EINVAL);
}
ret = ff_parse_channel_layout(&pan->out_channel_layout, arg, ctx);
if (ret < 0)
return ret;
pan->nb_output_channels = av_get_channel_layout_nb_channels(pan->out_channel_layout);
/* parse channel specifications */