From 64c59b626fa1cfd92703e99b85acc516d0d8ba0b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 3 May 2019 13:38:57 +0200 Subject: [PATCH] fftools/ffmpeg: Disable copy_ts on timestamp wraparound This allows handling more than 26.5h of mpeg* input Fixes: Ticket 7876 Signed-off-by: Michael Niedermayer --- fftools/ffmpeg.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c index 4fca8b4896..3322723748 100644 --- a/fftools/ffmpeg.c +++ b/fftools/ffmpeg.c @@ -4263,6 +4263,7 @@ static int process_input(int file_index) int ret, thread_ret, i, j; int64_t duration; int64_t pkt_dts; + int disable_discontinuity_correction = copy_ts; is = ifile->ctx; ret = get_input_packet(ifile, &pkt); @@ -4464,10 +4465,20 @@ static int process_input(int file_index) pkt.dts += duration; pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX); + + if (copy_ts && pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && + (is->iformat->flags & AVFMT_TS_DISCONT) && ist->st->pts_wrap_bits < 60) { + int64_t wrap_dts = av_rescale_q_rnd(pkt.dts + (1LL<st->pts_wrap_bits), + ist->st->time_base, AV_TIME_BASE_Q, + AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX); + if (FFABS(wrap_dts - ist->next_dts) < FFABS(pkt_dts - ist->next_dts)/10) + disable_discontinuity_correction = 0; + } + if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO || ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) && pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && - !copy_ts) { + !disable_discontinuity_correction) { int64_t delta = pkt_dts - ist->next_dts; if (is->iformat->flags & AVFMT_TS_DISCONT) { if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||