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Code Issues Releases Activity

wv: return meaningful error codes.

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This commit is contained in:
Anton Khirnov 2012-07-28 12:28:05 +02:00
parent ccc10acb5b
commit c1d865d563
1 changed files with 23 additions and 22 deletions
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45
libavformat/wv.c
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@ -90,17 +90,17 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
if(!append){ if(!append){
tag = avio_rl32(pb); tag = avio_rl32(pb);
if (tag != MKTAG('w', 'v', 'p', 'k')) if (tag != MKTAG('w', 'v', 'p', 'k'))
return -1; return AVERROR_INVALIDDATA;
size = avio_rl32(pb); size = avio_rl32(pb);
if(size < 24 || size > WV_BLOCK_LIMIT){ if(size < 24 || size > WV_BLOCK_LIMIT){
av_log(ctx, AV_LOG_ERROR, "Incorrect block size %i\n", size); av_log(ctx, AV_LOG_ERROR, "Incorrect block size %i\n", size);
return -1; return AVERROR_INVALIDDATA;
} }
wc->blksize = size; wc->blksize = size;
ver = avio_rl16(pb); ver = avio_rl16(pb);
if(ver < 0x402 || ver > 0x410){ if(ver < 0x402 || ver > 0x410){
av_log(ctx, AV_LOG_ERROR, "Unsupported version %03X\n", ver); av_log(ctx, AV_LOG_ERROR, "Unsupported version %03X\n", ver);
return -1; return AVERROR_PATCHWELCOME;
} }
avio_r8(pb); // track no avio_r8(pb); // track no
avio_r8(pb); // track sub index avio_r8(pb); // track sub index
@ -128,7 +128,7 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
int64_t block_end = avio_tell(pb) + wc->blksize - 24; int64_t block_end = avio_tell(pb) + wc->blksize - 24;
if(!pb->seekable){ if(!pb->seekable){
av_log(ctx, AV_LOG_ERROR, "Cannot determine additional parameters\n"); av_log(ctx, AV_LOG_ERROR, "Cannot determine additional parameters\n");
return -1; return AVERROR_INVALIDDATA;
} }
while(avio_tell(pb) < block_end){ while(avio_tell(pb) < block_end){
int id, size; int id, size;
@ -141,7 +141,7 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
case 0xD: case 0xD:
if(size <= 1){ if(size <= 1){
av_log(ctx, AV_LOG_ERROR, "Insufficient channel information\n"); av_log(ctx, AV_LOG_ERROR, "Insufficient channel information\n");
return -1; return AVERROR_INVALIDDATA;
} }
chan = avio_r8(pb); chan = avio_r8(pb);
switch(size - 2){ switch(size - 2){
@ -164,7 +164,7 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
break; break;
default: default:
av_log(ctx, AV_LOG_ERROR, "Invalid channel info size %d\n", size); av_log(ctx, AV_LOG_ERROR, "Invalid channel info size %d\n", size);
return -1; return AVERROR_INVALIDDATA;
} }
break; break;
case 0x27: case 0x27:
@ -178,7 +178,7 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
} }
if(rate == -1){ if(rate == -1){
av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n"); av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
return -1; return AVERROR_INVALIDDATA;
} }
avio_seek(pb, block_end - wc->blksize + 24, SEEK_SET); avio_seek(pb, block_end - wc->blksize + 24, SEEK_SET);
} }
@ -189,15 +189,15 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
if(wc->flags && bpp != wc->bpp){ if(wc->flags && bpp != wc->bpp){
av_log(ctx, AV_LOG_ERROR, "Bits per sample differ, this block: %i, header block: %i\n", bpp, wc->bpp); av_log(ctx, AV_LOG_ERROR, "Bits per sample differ, this block: %i, header block: %i\n", bpp, wc->bpp);
return -1; return AVERROR_INVALIDDATA;
} }
if(wc->flags && !wc->multichannel && chan != wc->chan){ if(wc->flags && !wc->multichannel && chan != wc->chan){
av_log(ctx, AV_LOG_ERROR, "Channels differ, this block: %i, header block: %i\n", chan, wc->chan); av_log(ctx, AV_LOG_ERROR, "Channels differ, this block: %i, header block: %i\n", chan, wc->chan);
return -1; return AVERROR_INVALIDDATA;
} }
if(wc->flags && rate != -1 && rate != wc->rate){ if(wc->flags && rate != -1 && rate != wc->rate){
av_log(ctx, AV_LOG_ERROR, "Sampling rate differ, this block: %i, header block: %i\n", rate, wc->rate); av_log(ctx, AV_LOG_ERROR, "Sampling rate differ, this block: %i, header block: %i\n", rate, wc->rate);
return -1; return AVERROR_INVALIDDATA;
} }
wc->blksize = size - 24; wc->blksize = size - 24;
return 0; return 0;
@ -208,11 +208,12 @@ static int wv_read_header(AVFormatContext *s)
AVIOContext *pb = s->pb; AVIOContext *pb = s->pb;
WVContext *wc = s->priv_data; WVContext *wc = s->priv_data;
AVStream *st; AVStream *st;
int ret;
wc->block_parsed = 0; wc->block_parsed = 0;
for(;;){ for(;;){
if(wv_read_block_header(s, pb, 0) < 0) if ((ret = wv_read_block_header(s, pb, 0)) < 0)
return -1; return ret;
if(!AV_RN32(wc->extra)) if(!AV_RN32(wc->extra))
avio_skip(pb, wc->blksize - 24); avio_skip(pb, wc->blksize - 24);
else else
@ -222,7 +223,7 @@ static int wv_read_header(AVFormatContext *s)
/* now we are ready: build format streams */ /* now we are ready: build format streams */
st = avformat_new_stream(s, NULL); st = avformat_new_stream(s, NULL);
if (!st) if (!st)
return -1; return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO; st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_WAVPACK; st->codec->codec_id = CODEC_ID_WAVPACK;
st->codec->channels = wc->chan; st->codec->channels = wc->chan;
@ -256,8 +257,8 @@ static int wv_read_packet(AVFormatContext *s,
if (s->pb->eof_reached) if (s->pb->eof_reached)
return AVERROR_EOF; return AVERROR_EOF;
if(wc->block_parsed){ if(wc->block_parsed){
if(wv_read_block_header(s, s->pb, 0) < 0) if ((ret = wv_read_block_header(s, s->pb, 0)) < 0)
return -1; return ret;
} }
pos = wc->pos; pos = wc->pos;
@ -275,7 +276,7 @@ static int wv_read_packet(AVFormatContext *s,
while(!(wc->flags & WV_END_BLOCK)){ while(!(wc->flags & WV_END_BLOCK)){
if(avio_rl32(s->pb) != MKTAG('w', 'v', 'p', 'k')){ if(avio_rl32(s->pb) != MKTAG('w', 'v', 'p', 'k')){
av_free_packet(pkt); av_free_packet(pkt);
return -1; return AVERROR_INVALIDDATA;
} }
if((ret = av_append_packet(s->pb, pkt, 4)) < 0){ if((ret = av_append_packet(s->pb, pkt, 4)) < 0){
av_free_packet(pkt); av_free_packet(pkt);
@ -285,14 +286,14 @@ static int wv_read_packet(AVFormatContext *s,
if(size < 24 || size > WV_BLOCK_LIMIT){ if(size < 24 || size > WV_BLOCK_LIMIT){
av_free_packet(pkt); av_free_packet(pkt);
av_log(s, AV_LOG_ERROR, "Incorrect block size %d\n", size); av_log(s, AV_LOG_ERROR, "Incorrect block size %d\n", size);
return -1; return AVERROR_INVALIDDATA;
} }
wc->blksize = size; wc->blksize = size;
ver = avio_rl16(s->pb); ver = avio_rl16(s->pb);
if(ver < 0x402 || ver > 0x410){ if(ver < 0x402 || ver > 0x410){
av_free_packet(pkt); av_free_packet(pkt);
av_log(s, AV_LOG_ERROR, "Unsupported version %03X\n", ver); av_log(s, AV_LOG_ERROR, "Unsupported version %03X\n", ver);
return -1; return AVERROR_PATCHWELCOME;
} }
avio_r8(s->pb); // track no avio_r8(s->pb); // track no
avio_r8(s->pb); // track sub index avio_r8(s->pb); // track sub index
@ -304,9 +305,9 @@ static int wv_read_packet(AVFormatContext *s,
} }
memcpy(wc->extra, pkt->data + pkt->size - WV_EXTRA_SIZE, WV_EXTRA_SIZE); memcpy(wc->extra, pkt->data + pkt->size - WV_EXTRA_SIZE, WV_EXTRA_SIZE);
if(wv_read_block_header(s, s->pb, 1) < 0){ if ((ret = wv_read_block_header(s, s->pb, 1)) < 0){
av_free_packet(pkt); av_free_packet(pkt);
return -1; return ret;
} }
ret = av_append_packet(s->pb, pkt, wc->blksize); ret = av_append_packet(s->pb, pkt, wc->blksize);
if(ret < 0){ if(ret < 0){
@ -345,14 +346,14 @@ static int wv_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
} }
/* if timestamp is out of bounds, return error */ /* if timestamp is out of bounds, return error */
if(timestamp < 0 || timestamp >= s->duration) if(timestamp < 0 || timestamp >= s->duration)
return -1; return AVERROR(EINVAL);
pos = avio_tell(s->pb); pos = avio_tell(s->pb);
do{ do{
ret = av_read_frame(s, pkt); ret = av_read_frame(s, pkt);
if (ret < 0){ if (ret < 0){
avio_seek(s->pb, pos, SEEK_SET); avio_seek(s->pb, pos, SEEK_SET);
return -1; return ret;
} }
pts = pkt->pts; pts = pkt->pts;
av_free_packet(pkt); av_free_packet(pkt);