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update filtering_audio example

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The filtering_audio.c example needs to be updated for the new
"abuffer" filter args.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andrew Wason 2012-06-04 14:07:15 -04:00 committed by Michael Niedermayer
parent 13a7bd70c8
commit 1ef802d038
2 changed files with 5 additions and 3 deletions
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1
doc/examples/Makefile
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@ -3,7 +3,6 @@ FFMPEG_LIBS= libavdevice \
libavformat \
libavfilter \
libavcodec \
libavresample \
libswresample \
libswscale \
libavutil \

7
doc/examples/filtering_audio.c
View File

@ -91,14 +91,17 @@ static int init_filters(const char *filters_descr)
const int64_t *chlayouts = avfilter_all_channel_layouts;
AVABufferSinkParams *abuffersink_params;
const AVFilterLink *outlink;
AVRational time_base = fmt_ctx->streams[audio_stream_index]->time_base;
filter_graph = avfilter_graph_alloc();
/* buffer audio source: the decoded frames from the decoder will be inserted here. */
if (!dec_ctx->channel_layout)
dec_ctx->channel_layout = av_get_default_channel_layout(dec_ctx->channels);
snprintf(args, sizeof(args), "%d:%d:0x%"PRIx64,
dec_ctx->sample_rate, dec_ctx->sample_fmt, dec_ctx->channel_layout);
snprintf(args, sizeof(args),
"time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%"PRIx64,
time_base.num, time_base.den, dec_ctx->sample_rate,
av_get_sample_fmt_name(dec_ctx->sample_fmt), dec_ctx->channel_layout);
ret = avfilter_graph_create_filter(&buffersrc_ctx, abuffersrc, "in",
args, NULL, filter_graph);
if (ret < 0) {