[FFmpeg-devel] [PATCH] lavf: accept time base from untrusted codecs if it matches timings

[Ronald S. Bultje]

Hi,

On Sun, Jan 30, 2011 at 2:33 PM, Anssi Hannula <anssi.hannula at iki.fi> wrote:
> @@ -627,6 +627,8 @@ typedef struct AVStream {
> ? ? ? ? int64_t last_dts;
> ? ? ? ? int64_t duration_gcd;
> ? ? ? ? int duration_count;
> + ? ? ? ?int codec_tb_matches_dts;
> + ? ? ? ?double codec_tb_dur_error;
> ? ? ? ? double duration_error[MAX_STD_TIMEBASES];
> ? ? ? ? int64_t codec_info_duration;
> ? ? } *info;

These are only used in av_find_stream_info(), adding them to AVStream
in the middle breaks ABI and increases size for something that I don't
think should be in there. Can you locally allocate and free an array
instead, or create a AVFindStreamInfo array for these kind of temp
values to be shared between functions?

Ronald