From 5aef535a64350b7bc06c5bdda8c26c9efec9443b Mon Sep 17 00:00:00 2001 From: Timo Rothenpieler Date: Wed, 4 Mar 2015 22:48:43 +0100 Subject: dashenc: Update extradata for mov muxer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The mov muxer already supports picking up extradata that wasn't present during the avformat_write_header call - we just need to propagate it. Since the dash muxer uses delay_moov, we have time up until the first segment is written to get extradata filled in. Also update the codec description string when the extradata becomes available. Signed-off-by: Martin Storsjö --- libavformat/dashenc.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'libavformat/dashenc.c') diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c index 6b385ae2e9..1d32cdf7ef 100644 --- a/libavformat/dashenc.c +++ b/libavformat/dashenc.c @@ -730,6 +730,29 @@ static void find_index_range(AVFormatContext *s, const char *full_path, *index_length = AV_RB32(&buf[0]); } +static int update_stream_extradata(AVFormatContext *s, OutputStream *os, + AVCodecContext *codec) +{ + uint8_t *extradata; + + if (os->ctx->streams[0]->codec->extradata_size || !codec->extradata_size) + return 0; + + extradata = av_malloc(codec->extradata_size); + + if (!extradata) + return AVERROR(ENOMEM); + + memcpy(extradata, codec->extradata, codec->extradata_size); + + os->ctx->streams[0]->codec->extradata = extradata; + os->ctx->streams[0]->codec->extradata_size = codec->extradata_size; + + set_codec_str(s, codec, os->codec_str, sizeof(os->codec_str)); + + return 0; +} + static int dash_flush(AVFormatContext *s, int final, int stream) { DASHContext *c = s->priv_data; @@ -833,6 +856,10 @@ static int dash_write_packet(AVFormatContext *s, AVPacket *pkt) int64_t seg_end_duration = (os->segment_index) * (int64_t) c->min_seg_duration; int ret; + ret = update_stream_extradata(s, os, st->codec); + if (ret < 0) + return ret; + // If forcing the stream to start at 0, the mp4 muxer will set the start // timestamps to 0. Do the same here, to avoid mismatches in duration/timestamps. if (os->first_pts == AV_NOPTS_VALUE && -- cgit v1.2.3