[FFmpeg-devel] [PATCH v2] avformat/hlsenc: fix hlsenc bug at windows system

wm4 nfxjfg at googlemail.com
Fri Jan 13 07:34:02 EET 2017


On Fri, 13 Jan 2017 08:00:34 +0800
Steven Liu <lingjiujianke at gmail.com> wrote:

> 2017-01-13 0:55 GMT+08:00 Steven Liu <lq at chinaffmpeg.org>:
> 
> > when hlsenc use flag second_level_segment_index,
> > second_level_segment_size and second_level_segment_duration,
> > the rename is ok but the output filename always use the old filename
> > so move the rename operation after the close the ts file and
> > before open new segment
> >
> > Reported-by: Christian Johannesen <chrisjohannesen at gmail.com>
> > Signed-off-by: Steven Liu <lq at chinaffmpeg.org>
> > ---
> >  libavformat/hlsenc.c | 49 ++++++++++++++++++++++++++++++
> > +++++--------------
> >  1 file changed, 35 insertions(+), 14 deletions(-)
> >
> > diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
> > index a2c606c..f662913 100644
> > --- a/libavformat/hlsenc.c
> > +++ b/libavformat/hlsenc.c
> > @@ -453,16 +453,10 @@ static int hls_append_segment(struct AVFormatContext
> > *s, HLSContext *hls, double
> >
> >      if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE |
> > HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
> >          strlen(hls->current_segment_final_filename_fmt)) {
> > -        char * old_filename = av_strdup(hls->avf->filename);  // %%s will
> > be %s after strftime
> > -        if (!old_filename) {
> > -            av_free(en);
> > -            return AVERROR(ENOMEM);
> > -        }
> >          av_strlcpy(hls->avf->filename, hls->current_segment_final_filename_fmt,
> > sizeof(hls->avf->filename));
> >          if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
> >              char * filename = av_strdup(hls->avf->filename);  // %%s will
> > be %s after strftime
> >              if (!filename) {
> > -                av_free(old_filename);
> >                  av_free(en);
> >                  return AVERROR(ENOMEM);
> >              }
> > @@ -473,7 +467,6 @@ static int hls_append_segment(struct AVFormatContext
> > *s, HLSContext *hls, double
> >                          "you can try to remove second_level_segment_size
> > flag\n",
> >                         filename);
> >                  av_free(filename);
> > -                av_free(old_filename);
> >                  av_free(en);
> >                  return AVERROR(EINVAL);
> >              }
> > @@ -482,7 +475,6 @@ static int hls_append_segment(struct AVFormatContext
> > *s, HLSContext *hls, double
> >          if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
> >              char * filename = av_strdup(hls->avf->filename);  // %%t will
> > be %t after strftime
> >              if (!filename) {
> > -                av_free(old_filename);
> >                  av_free(en);
> >                  return AVERROR(ENOMEM);
> >              }
> > @@ -493,14 +485,11 @@ static int hls_append_segment(struct AVFormatContext
> > *s, HLSContext *hls, double
> >                          "you can try to remove second_level_segment_time
> > flag\n",
> >                         filename);
> >                  av_free(filename);
> > -                av_free(old_filename);
> >                  av_free(en);
> >                  return AVERROR(EINVAL);
> >              }
> >              av_free(filename);
> >          }
> > -        ff_rename(old_filename, hls->avf->filename, hls);
> > -        av_free(old_filename);
> >      }
> >
> >
> > @@ -1239,14 +1228,22 @@ static int hls_write_packet(AVFormatContext *s,
> > AVPacket *pkt)
> >      if (can_split && av_compare_ts(pkt->pts - hls->start_pts,
> > st->time_base,
> >                                     end_pts, AV_TIME_BASE_Q) >= 0) {
> >          int64_t new_start_pos;
> > +        char *old_filename = av_strdup(hls->avf->filename);
> > +
> > +        if (!old_filename) {
> > +            return AVERROR(ENOMEM);
> > +        }
> > +
> >          av_write_frame(oc, NULL); /* Flush any buffered data */
> >
> >          new_start_pos = avio_tell(hls->avf->pb);
> >          hls->size = new_start_pos - hls->start_pos;
> >          ret = hls_append_segment(s, hls, hls->duration, hls->start_pos,
> > hls->size);
> >          hls->start_pos = new_start_pos;
> > -        if (ret < 0)
> > +        if (ret < 0) {
> > +            av_free(old_filename);
> >              return ret;
> > +        }
> >
> >          hls->end_pts = pkt->pts;
> >          hls->duration = 0;
> > @@ -1261,6 +1258,10 @@ static int hls_write_packet(AVFormatContext *s,
> > AVPacket *pkt)
> >              if (hls->start_pos >= hls->max_seg_size) {
> >                  hls->sequence++;
> >                  ff_format_io_close(s, &oc->pb);
> > +                if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE |
> > HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
> > +                     strlen(hls->current_segment_final_filename_fmt)) {
> > +                    ff_rename(old_filename, hls->avf->filename, hls);
> > +                }
> >                  if (hls->vtt_avf)
> >                      ff_format_io_close(s, &hls->vtt_avf->pb);
> >                  ret = hls_start(s);
> > @@ -1272,22 +1273,30 @@ static int hls_write_packet(AVFormatContext *s,
> > AVPacket *pkt)
> >              hls->number++;
> >          } else {
> >              ff_format_io_close(s, &oc->pb);
> > +            if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE |
> > HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
> > +                strlen(hls->current_segment_final_filename_fmt)) {
> > +                ff_rename(old_filename, hls->avf->filename, hls);
> > +            }
> >              if (hls->vtt_avf)
> >                  ff_format_io_close(s, &hls->vtt_avf->pb);
> >
> >              ret = hls_start(s);
> >          }
> >
> > -        if (ret < 0)
> > +        if (ret < 0) {
> > +            av_free(old_filename);
> >              return ret;
> > +        }
> >
> >          if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE )
> >              oc = hls->vtt_avf;
> >          else
> >          oc = hls->avf;
> >
> > -        if ((ret = hls_window(s, 0)) < 0)
> > +        if ((ret = hls_window(s, 0)) < 0) {
> > +            av_free(old_filename);
> >              return ret;
> > +        }
> >      }
> >
> >      ret = ff_write_chained(oc, stream_index, pkt, s, 0);
> > @@ -1300,6 +1309,12 @@ static int hls_write_trailer(struct AVFormatContext
> > *s)
> >      HLSContext *hls = s->priv_data;
> >      AVFormatContext *oc = hls->avf;
> >      AVFormatContext *vtt_oc = hls->vtt_avf;
> > +    char *old_filename = av_strdup(hls->avf->filename);
> > +
> > +    if (!old_filename) {
> > +        return AVERROR(ENOMEM);
> > +    }
> > +
> >
> >      av_write_trailer(oc);
> >      if (oc->pb) {
> > @@ -1309,6 +1324,11 @@ static int hls_write_trailer(struct AVFormatContext
> > *s)
> >          hls_append_segment(s, hls, hls->duration + hls->dpp,
> > hls->start_pos, hls->size);
> >      }
> >
> > +    if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE |
> > HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
> > +         strlen(hls->current_segment_final_filename_fmt)) {
> > +         ff_rename(old_filename, hls->avf->filename, hls);
> > +    }
> > +
> >      if (vtt_oc) {
> >          if (vtt_oc->pb)
> >              av_write_trailer(vtt_oc);
> > @@ -1329,6 +1349,7 @@ static int hls_write_trailer(struct AVFormatContext
> > *s)
> >
> >      hls_free_segments(hls->segments);
> >      hls_free_segments(hls->old_segments);
> > +    av_free(old_filename);
> >      return 0;
> >  }
> >
> > --
> > 2.10.1.382.ga23ca1b.dirty
> >
> >
> >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >  
> 
> applied

Please wait a bit longer with applying such patches (maybe about 24
hours), so everyone gets a chance to review it.


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