Commit ae447836 authored by Baptiste Coudurier's avatar Baptiste Coudurier

In av_find_stream_info, decode at least 4 h.264 frames to be able to guess delay.

Originally committed as revision 24014 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent b06855f1
......@@ -2019,6 +2019,12 @@ static int has_codec_parameters(AVCodecContext *enc)
return enc->codec_id != CODEC_ID_NONE && val != 0;
}
static int has_decode_delay_been_guessed(AVStream *st)
{
return st->codec->codec_id != CODEC_ID_H264 ||
st->codec_info_nb_frames >= 4 + st->codec->has_b_frames;
}
static int try_decode_frame(AVStream *st, AVPacket *avpkt)
{
int16_t *samples;
......@@ -2035,7 +2041,7 @@ static int try_decode_frame(AVStream *st, AVPacket *avpkt)
return ret;
}
if(!has_codec_parameters(st->codec)){
if(!has_codec_parameters(st->codec) || !has_decode_delay_been_guessed(st)){
switch(st->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
avcodec_get_frame_defaults(&picture);
......@@ -2317,7 +2323,7 @@ int av_find_stream_info(AVFormatContext *ic)
decompress the frame. We try to avoid that in most cases as
it takes longer and uses more memory. For MPEG-4, we need to
decompress for QuickTime. */
if (!has_codec_parameters(st->codec))
if (!has_codec_parameters(st->codec) || !has_decode_delay_been_guessed(st))
try_decode_frame(st, pkt);
count++;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment