From 09450c55092523d073f7ec415f863531838ca908 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 15 Oct 2014 15:54:02 +0200 Subject: [PATCH] avcodec/h264: fix time_base and framerate They are not just inverses of each other. This should restore behavior to before the introduction of framerate Signed-off-by: Michael Niedermayer --- libavcodec/h264.c | 6 +++--- libavcodec/h264_parser.c | 2 ++ libavcodec/h264_slice.c | 2 +- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 6aa174daf1..0405779284 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -688,10 +688,10 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx) ff_h264_reset_sei(h); if (avctx->codec_id == AV_CODEC_ID_H264) { if (avctx->ticks_per_frame == 1) { - if(h->avctx->framerate.num < INT_MAX/2) { - h->avctx->framerate.num *= 2; + if(h->avctx->time_base.den < INT_MAX/2) { + h->avctx->time_base.den *= 2; } else - h->avctx->framerate.den /= 2; + h->avctx->time_base.num /= 2; } avctx->ticks_per_frame = 2; } diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c index 36cf980c8e..ac4d73a39d 100644 --- a/libavcodec/h264_parser.c +++ b/libavcodec/h264_parser.c @@ -490,6 +490,8 @@ static int h264_parse(AVCodecParserContext *s, parse_nal_units(s, avctx, buf, buf_size); + if (avctx->framerate.num) + avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1})); if (h->sei_cpb_removal_delay >= 0) { s->dts_sync_point = h->sei_buffering_period_present; s->dts_ref_dts_delta = h->sei_cpb_removal_delay; diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 64aebfa16e..17c7b4766a 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1171,7 +1171,7 @@ static int h264_slice_header_init(H264Context *h, int reinit) if (h->x264_build < 44U) den *= 2; av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num, - h->sps.num_units_in_tick, den, 1 << 30); + h->sps.num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30); } if (reinit)