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examples/muxing: add missing error checks

This commit is contained in:
Stefano Sabatini 2012-10-15 15:33:58 +02:00
parent e56b3a5ebb
commit 6133149e0c
1 changed files with 11 additions and 2 deletions
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13
doc/examples/muxing.c
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@ -115,6 +115,10 @@ static void open_audio(AVFormatContext *oc, AVCodec *codec, AVStream *st)
samples = av_malloc(audio_input_frame_size *
av_get_bytes_per_sample(c->sample_fmt) *
c->channels);
if (!samples) {
fprintf(stderr, "Could not allocate audio samples buffer\n");
exit(1);
}
}
/* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
@ -139,7 +143,7 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
AVCodecContext *c;
AVPacket pkt = { 0 }; // data and size must be 0;
AVFrame *frame = avcodec_alloc_frame();
int got_packet;
int got_packet, ret;
av_init_packet(&pkt);
c = st->codec;
@ -152,7 +156,12 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
av_get_bytes_per_sample(c->sample_fmt) *
c->channels, 1);
avcodec_encode_audio2(c, &pkt, frame, &got_packet);
ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
if (ret < 0) {
fprintf(stderr, "Error encoding audio frame\n");
exit(1);
}
if (!got_packet)
return;