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libvorbis: check return values for functions that can return errors

This commit is contained in:
Justin Ruggles 2012-02-28 21:00:33 -05:00
parent c5063e0348
commit 94025d8a99
1 changed files with 15 additions and 7 deletions
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22
libavcodec/libvorbis.c
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@ -237,7 +237,7 @@ static int oggvorbis_encode_frame(AVCodecContext *avctx, unsigned char *packets,
OggVorbisContext *s = avctx->priv_data;
ogg_packet op;
float *audio = data;
int pkt_size;
int pkt_size, ret;
/* send samples to libvorbis */
if (data) {
@ -253,20 +253,24 @@ static int oggvorbis_encode_frame(AVCodecContext *avctx, unsigned char *packets,
for (i = 0; i < samples; i++)
buffer[c][i] = audio[i * channels + co];
}
vorbis_analysis_wrote(&s->vd, samples);
if ((ret = vorbis_analysis_wrote(&s->vd, samples)) < 0)
return vorbis_error_to_averror(ret);
} else {
if (!s->eof)
vorbis_analysis_wrote(&s->vd, 0);
if ((ret = vorbis_analysis_wrote(&s->vd, 0)) < 0)
return vorbis_error_to_averror(ret);
s->eof = 1;
}
/* retrieve available packets from libvorbis */
while (vorbis_analysis_blockout(&s->vd, &s->vb) == 1) {
vorbis_analysis(&s->vb, NULL);
vorbis_bitrate_addblock(&s->vb);
while ((ret = vorbis_analysis_blockout(&s->vd, &s->vb)) == 1) {
if ((ret = vorbis_analysis(&s->vb, NULL)) < 0)
break;
if ((ret = vorbis_bitrate_addblock(&s->vb)) < 0)
break;
/* add any available packets to the output packet buffer */
while (vorbis_bitrate_flushpacket(&s->vd, &op)) {
while ((ret = vorbis_bitrate_flushpacket(&s->vd, &op)) == 1) {
/* i'd love to say the following line is a hack, but sadly it's
* not, apparently the end of stream decision is in libogg. */
if (op.bytes == 1 && op.e_o_s)
@ -280,7 +284,11 @@ static int oggvorbis_encode_frame(AVCodecContext *avctx, unsigned char *packets,
memcpy(s->buffer + s->buffer_index, op.packet, op.bytes);
s->buffer_index += op.bytes;
}
if (ret < 0)
break;
}
if (ret < 0)
return vorbis_error_to_averror(ret);
/* output then next packet from the output buffer, if available */
pkt_size = 0;