On Wednesday, February 22, 2017, Przemysław Sobala < przemyslaw.sob...@gmail.com> wrote:
> From: Przemysław Sobala <przemyslaw.sob...@gmail.com <javascript:;>> > > Provides a way to change bandwidth (bitrate) parameter after CRF H.264 > encoding (details: http://ffmpeg.org/pipermail/libav-user/2017-February/ > 010141.html) > > Signed-off-by: Przemysław Sobala <przemyslaw.sob...@grupawp.pl > <javascript:;>> > --- > libavformat/dashenc.c | 42 ++++++++++++++++++++++++++++++------------ > 1 file changed, 30 insertions(+), 12 deletions(-) > > diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c > index fa56505..011d2ea 100644 > --- a/libavformat/dashenc.c > +++ b/libavformat/dashenc.c > @@ -561,6 +561,30 @@ static int write_manifest(AVFormatContext *s, int > final) > return 0; > } > > +static int set_bitrate(AVFormatContext *s) > +{ > + DASHContext *c = s->priv_data; > + int i; > + > + for (i = 0; i < s->nb_streams; i++) { > + OutputStream *os = &c->streams[i]; > + > + os->bit_rate = s->streams[i]->codecpar->bit_rate; > + if (os->bit_rate) { > + snprintf(os->bandwidth_str, sizeof(os->bandwidth_str), > + " bandwidth=\"%d\"", os->bit_rate); > + } else { > + int level = s->strict_std_compliance >= FF_COMPLIANCE_STRICT ? > + AV_LOG_ERROR : AV_LOG_WARNING; > + av_log(s, level, "No bit rate set for stream %d\n", i); > + if (s->strict_std_compliance >= FF_COMPLIANCE_STRICT) > + return AVERROR(EINVAL); > + } > + } > + > + return 0; > +} > + > static int dash_init(AVFormatContext *s) > { > DASHContext *c = s->priv_data; > @@ -597,6 +621,10 @@ static int dash_init(AVFormatContext *s) > if (!c->streams) > return AVERROR(ENOMEM); > > + ret = set_bitrate(s); > + if (ret < 0) > + return ret; > + > for (i = 0; i < s->nb_streams; i++) { > OutputStream *os = &c->streams[i]; > AVFormatContext *ctx; > @@ -604,18 +632,6 @@ static int dash_init(AVFormatContext *s) > AVDictionary *opts = NULL; > char filename[1024]; > > - os->bit_rate = s->streams[i]->codecpar->bit_rate; > - if (os->bit_rate) { > - snprintf(os->bandwidth_str, sizeof(os->bandwidth_str), > - " bandwidth=\"%d\"", os->bit_rate); > - } else { > - int level = s->strict_std_compliance >= FF_COMPLIANCE_STRICT ? > - AV_LOG_ERROR : AV_LOG_WARNING; > - av_log(s, level, "No bit rate set for stream %d\n", i); > - if (s->strict_std_compliance >= FF_COMPLIANCE_STRICT) > - return AVERROR(EINVAL); > - } > - > ctx = avformat_alloc_context(); > if (!ctx) > return AVERROR(ENOMEM); > @@ -981,6 +997,8 @@ static int dash_write_trailer(AVFormatContext *s) > { > DASHContext *c = s->priv_data; > > + set_bitrate(s); > + > if (s->nb_streams > 0) { > OutputStream *os = &c->streams[0]; > // If no segments have been written so far, try to do a crude > -- > 2.7.4 > > Any comment on this? -- Best regards Przemysław Sobala _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
