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Fix crash when decoding DV in AVI introduced in r24579 (issue 2174).

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Patch by Andrew Wason, rectalogic rectalogic com

Originally committed as revision 25023 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Andrew Wason 2010-09-02 11:51:32 +00:00 committed by Carl Eugen Hoyos
parent a10a9f5cd0
commit 4ed899f2c5
1 changed files with 3 additions and 1 deletions
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4
libavformat/avidec.c
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@ -759,7 +759,7 @@ static AVStream *get_subtitle_pkt(AVFormatContext *s, AVStream *next_st,
for (i=0; i<s->nb_streams; i++) {
st = s->streams[i];
ast = st->priv_data;
if (st->discard < AVDISCARD_ALL && ast->sub_pkt.data) {
if (st->discard < AVDISCARD_ALL && ast && ast->sub_pkt.data) {
ts = av_rescale_q(ast->sub_pkt.dts, st->time_base, AV_TIME_BASE_Q);
if (ts <= next_ts && ts < ts_min) {
ts_min = ts;
@ -1294,12 +1294,14 @@ static int avi_read_close(AVFormatContext *s)
AVStream *st = s->streams[i];
AVIStream *ast = st->priv_data;
av_free(st->codec->palctrl);
if (ast) {
if (ast->sub_ctx) {
av_freep(&ast->sub_ctx->pb);
av_close_input_stream(ast->sub_ctx);
}
av_free(ast->sub_buffer);
av_free_packet(&ast->sub_pkt);
}
}
if (avi->dv_demux)