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examples/demuxing_decoding: set stream_idx in open_codec_context only if no error occured

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Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andreas Cadhalpun 2015-01-31 21:11:38 +01:00 committed by Michael Niedermayer
parent b80106169a
commit 2a3b7a55b5
1 changed files with 4 additions and 3 deletions
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7
doc/examples/demuxing_decoding.c
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@ -138,7 +138,7 @@ static int decode_packet(int *got_frame, int cached)
static int open_codec_context(int *stream_idx, static int open_codec_context(int *stream_idx,
AVFormatContext *fmt_ctx, enum AVMediaType type) AVFormatContext *fmt_ctx, enum AVMediaType type)
{ {
int ret; int ret, stream_index;
AVStream *st; AVStream *st;
AVCodecContext *dec_ctx = NULL; AVCodecContext *dec_ctx = NULL;
AVCodec *dec = NULL; AVCodec *dec = NULL;
@ -150,8 +150,8 @@ static int open_codec_context(int *stream_idx,
av_get_media_type_string(type), src_filename); av_get_media_type_string(type), src_filename);
return ret; return ret;
} else { } else {
*stream_idx = ret; stream_index = ret;
st = fmt_ctx->streams[*stream_idx]; st = fmt_ctx->streams[stream_index];
/* find decoder for the stream */ /* find decoder for the stream */
dec_ctx = st->codec; dec_ctx = st->codec;
@ -170,6 +170,7 @@ static int open_codec_context(int *stream_idx,
av_get_media_type_string(type)); av_get_media_type_string(type));
return ret; return ret;
} }
*stream_idx = stream_index;
} }
return 0; return 0;