RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-01-20 14:20:51 +00:00
Code Issues Projects Releases Wiki Activity

lavf/flvenc: fail in case the muxed packet is too big

Browse Source 
Avoid the creation of files which cannot be successfully decoded by
ffmpeg, for example generated with:
ffmpeg -f lavfi -i sine -af "aselect='not(between(t,100,500))',aresample=min_comp=0.001:min_hard_comp=0.100000" -acodec pcm_s16le -t 1000 -y out_audio.flv
This commit is contained in:
Stefano Sabatini 2014-11-03 00:28:06 +01:00
parent 4f4de7f49e
commit f0158e6f0c
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libavformat/flvenc.c
View File

@ -548,6 +548,12 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
if (sc->last_ts < ts)
sc->last_ts = ts;
if (size + flags_size >= 1<<24) {
av_log(s, AV_LOG_ERROR, "Too large packet with size %u >= %u\n",
size + flags_size, 1<<24);
return AVERROR(EINVAL);
}
avio_wb24(pb, size + flags_size);
avio_wb24(pb, ts & 0xFFFFFF);
avio_w8(pb, (ts >> 24) & 0x7F); // timestamps are 32 bits _signed_