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applehttp: Only check the discard flags if v->ctx actually is initialized 

This code could be executed if the demuxer reads more than one
segment before returning from av_open_input_stream.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2011-04-12 00:19:56 +03:00
parent 4c362a5212
commit a92a7ddc25
1 changed files with 7 additions and 4 deletions
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11
libavformat/applehttp.c
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@ -309,10 +309,13 @@ reload:
c->end_of_segment = 1;
c->cur_seq_no = v->cur_seq_no;
v->needed = 0;
for (i = v->stream_offset; i < v->stream_offset + v->ctx->nb_streams; i++) {
if (v->parent->streams[i]->discard < AVDISCARD_ALL)
v->needed = 1;
if (v->ctx) {
v->needed = 0;
for (i = v->stream_offset; i < v->stream_offset + v->ctx->nb_streams;
i++) {
if (v->parent->streams[i]->discard < AVDISCARD_ALL)
v->needed = 1;
}
}
if (!v->needed) {
av_log(v->parent, AV_LOG_INFO, "No longer receiving variant %d\n",