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rtpenc: use av_get_audio_frame_duration() for max_frames_per_packet 

It is more reliable than AVCodecContext.frame_size for codecs with constant
packet duration.
This commit is contained in:
Justin Ruggles 2012-02-27 03:01:45 -05:00
parent c019070fda
commit 14aecc50fa
1 changed files with 9 additions and 2 deletions
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11
libavformat/rtpenc.c
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@ -129,10 +129,17 @@ static int rtp_write_header(AVFormatContext *s1)
s->max_frames_per_packet = 0;
if (s1->max_delay) {
if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
if (st->codec->frame_size == 0) {
int frame_size = av_get_audio_frame_duration(st->codec, 0);
if (!frame_size)
frame_size = st->codec->frame_size;
if (frame_size == 0) {
av_log(s1, AV_LOG_ERROR, "Cannot respect max delay: frame size = 0\n");
} else {
s->max_frames_per_packet = av_rescale_rnd(s1->max_delay, st->codec->sample_rate, AV_TIME_BASE * (int64_t)st->codec->frame_size, AV_ROUND_DOWN);
s->max_frames_per_packet =
av_rescale_q_rnd(s1->max_delay,
AV_TIME_BASE_Q,
(AVRational){ frame_size / st->codec->sample_rate },
AV_ROUND_DOWN);
}
}
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {