On Tue, Jan 13, 2015 at 1:55 PM, Vittorio Giovara <vittorio.giov...@gmail.com> wrote: > On Thu, Dec 4, 2014 at 8:09 PM, Vittorio Giovara > <vittorio.giov...@gmail.com> wrote: >> During remuxing avcodec_copy_context() is discouraged as certain fields >> (such as codec_tag) could reflect invalid values between input and >> output contextes. >> --- >> libavformat/avformat.h | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/libavformat/avformat.h b/libavformat/avformat.h >> index 4706f62..197a3f1 100644 >> --- a/libavformat/avformat.h >> +++ b/libavformat/avformat.h >> @@ -198,6 +198,10 @@ >> * be set to the timebase that the caller desires to use for this stream >> (note >> * that the timebase actually used by the muxer can be different, as will >> be >> * described later). >> + * - It is advised to manually initialize only the relevant fields in >> + * AVCodecContext, rather than using @ref avcodec_copy_context() during >> + * remuxing: there is no guarantee that the codec context values remain >> valid >> + * for both input and output format contextes. >> * - The caller may fill in additional information, such as @ref >> * AVFormatContext.metadata "global" or @ref AVStream.metadata >> "per-stream" >> * metadata, @ref AVFormatContext.chapters "chapters", @ref >> -- >> 1.9.3 (Apple Git-50) >> > > ping
ping -- Vittorio _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
