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avformat/vividas: Error out on audio packets in the absence of audio streams 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-11-05 22:03:19 +01:00
parent 3e5a528bbe
commit d83002179f
1 changed files with 9 additions and 5 deletions
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14
libavformat/vividas.c
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@ -52,6 +52,7 @@ typedef struct VIV_AudioSubpacket {
typedef struct VividasDemuxContext {
int n_sb_blocks;
VIV_SB_block *sb_blocks;
int num_audio;
uint32_t sb_key;
int64_t sb_offset;
@ -280,7 +281,7 @@ static int track_header(VividasDemuxContext *viv, AVFormatContext *s, uint8_t *
int i,j;
int64_t off;
int val_1;
int num_video, num_audio;
int num_video;
AVIOContext *pb;
pb = avio_alloc_context(buf, size, 0, NULL, NULL, NULL, NULL);
@ -342,13 +343,13 @@ static int track_header(VividasDemuxContext *viv, AVFormatContext *s, uint8_t *
off = avio_tell(pb);
off += ffio_read_varlen(pb); // val_10
avio_r8(pb); // '4'
num_audio = avio_r8(pb);
viv->num_audio = avio_r8(pb);
avio_seek(pb, off, SEEK_SET);
if (num_audio != 1)
av_log(s, AV_LOG_WARNING, "number of audio tracks %d is not 1\n", num_audio);
if (viv->num_audio != 1)
av_log(s, AV_LOG_WARNING, "number of audio tracks %d is not 1\n", viv->num_audio);
for(i=0;i<num_audio;i++) {
for(i=0;i<viv->num_audio;i++) {
int q;
AVStream *st = avformat_new_stream(s, NULL);
@ -678,6 +679,9 @@ static int viv_read_packet(AVFormatContext *s,
if (viv->sb_entries[viv->current_sb_entry].flag == 0) {
uint64_t v_size = ffio_read_varlen(pb);
if (!viv->num_audio)
return AVERROR_INVALIDDATA;
ffio_read_varlen(pb);
if (v_size > INT_MAX)
return AVERROR_INVALIDDATA;