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mp3: properly forward mp_decode_frame errors 

The function can return either a parsing error or a memory management
error.
This commit is contained in:
Luca Barbato 2012-10-22 19:11:05 +02:00
parent 0c03cc6838
commit 9ab0874ea8
1 changed files with 18 additions and 14 deletions
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32
libavcodec/mpegaudiodec.c
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@ -1636,7 +1636,7 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame_ptr,
int buf_size = avpkt->size;
MPADecodeContext *s = avctx->priv_data;
uint32_t header;
int out_size;
int ret;
if (buf_size < HEADER_SIZE)
return AVERROR_INVALIDDATA;
@ -1665,21 +1665,22 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame_ptr,
buf_size= s->frame_size;
}
out_size = mp_decode_frame(s, NULL, buf, buf_size);
if (out_size >= 0) {
ret = mp_decode_frame(s, NULL, buf, buf_size);
if (ret >= 0) {
*got_frame_ptr = 1;
*(AVFrame *)data = s->frame;
avctx->sample_rate = s->sample_rate;
//FIXME maybe move the other codec info stuff from above here too
} else {
av_log(avctx, AV_LOG_ERROR, "Error while decoding MPEG audio frame.\n");
/* Only return an error if the bad frame makes up the whole packet.
If there is more data in the packet, just consume the bad frame
instead of returning an error, which would discard the whole
packet. */
/* Only return an error if the bad frame makes up the whole packet or
* the error is related to buffer management.
* If there is more data in the packet, just consume the bad frame
* instead of returning an error, which would discard the whole
* packet. */
*got_frame_ptr = 0;
if (buf_size == avpkt->size)
return out_size;
if (buf_size == avpkt->size || ret != AVERROR_INVALIDDATA)
return ret;
}
s->frame_size = 0;
return buf_size;
@ -1704,7 +1705,7 @@ static int decode_frame_adu(AVCodecContext *avctx, void *data,
int buf_size = avpkt->size;
MPADecodeContext *s = avctx->priv_data;
uint32_t header;
int len, out_size;
int len, ret;
len = buf_size;
@ -1735,10 +1736,10 @@ static int decode_frame_adu(AVCodecContext *avctx, void *data,
s->frame_size = len;
out_size = mp_decode_frame(s, NULL, buf, buf_size);
if (out_size < 0) {
ret = mp_decode_frame(s, NULL, buf, buf_size);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error while decoding MPEG audio frame.\n");
return AVERROR_INVALIDDATA;
return ret;
}
*got_frame_ptr = 1;
@ -1943,7 +1944,10 @@ static int decode_frame_mp3on4(AVCodecContext *avctx, void *data,
}
ch += m->nb_channels;
out_size += mp_decode_frame(m, outptr, buf, fsize);
if ((ret = mp_decode_frame(m, outptr, buf, fsize)) < 0)
return ret;
out_size += ret;
buf += fsize;
len -= fsize;