[FFmpeg-devel] [PATCH] avformat/hlsenc: refine EXT-X-BYTERANGE support for segments

Steven Liu lingjiujianke at gmail.com
Mon Sep 12 12:39:31 EEST 2016


2016-09-12 17:35 GMT+08:00 Steven Liu <lingjiujianke at gmail.com>:

>
>
> 2016-09-12 17:28 GMT+08:00 Michael Niedermayer <michael at niedermayer.cc>:
>
>> On Mon, Sep 12, 2016 at 03:01:24PM +0800, Steven Liu wrote:
>> > refine EXT-X-BYTERANGE tag,
>> > the spec link:
>> > https://tools.ietf.org/html/draft-pantos-http-live-streaming
>> -19#section-4.3.2.2
>> >
>> > the apple doc:
>> > https://developer.apple.com/library/ios/technotes/tn2288/_in
>> dex.html#//apple_ref/doc/uid/DTS40012238-CH1-BYTE_RANGE_
>> SUPPORT_FOR_SEGMENTS
>> >
>> > command line:
>> > ./ffmpeg -i ~/Movies/objectC/a.mp4 -c copy -f hls -hls_time 7
>> > -hls_list_size 100 -hls_segment_size 2500000 -t 40 output-test.m3u8
>> >
>> > output:
>> >
>> > localhost:ffmpeg liuqi$ ll *.ts ;cat output-test.m3u8
>> > -rw-r--r--  1 liuqi  staff  2792176  9 12 14:44 output-test0.ts
>> > -rw-r--r--  1 liuqi  staff  3112528  9 12 14:44 output-test3.ts
>> > -rw-r--r--  1 liuqi  staff  3377420  9 12 14:44 output-test6.ts
>> > -rw-r--r--  1 liuqi  staff  1228016  9 12 14:44 output-test7.ts
>> >  #EXTM3U
>> >  #EXT-X-VERSION:4
>> >  #EXT-X-TARGETDURATION:10
>> >  #EXT-X-MEDIA-SEQUENCE:0
>> >  #EXTINF:9.021000,
>> >  #EXT-X-BYTERANGE:1334988 at 0
>> >  output-test0.ts
>> >  #EXTINF:3.000000,
>> >  #EXT-X-BYTERANGE:721356 at 1334988
>> >  output-test0.ts
>> >  #EXTINF:3.000000,
>> >  #EXT-X-BYTERANGE:735832 at 2056344
>> >  output-test0.ts
>> >  #EXTINF:6.000000,
>> >  #EXT-X-BYTERANGE:1645940 at 0
>> >  output-test3.ts
>> >  #EXTINF:3.000000,
>> >  #EXT-X-BYTERANGE:715152 at 1645940
>> >  output-test3.ts
>> >  #EXTINF:3.000000,
>> >  #EXT-X-BYTERANGE:751436 at 2361092
>> >  output-test3.ts
>> >  #EXTINF:9.000000,
>> >  #EXT-X-BYTERANGE:3377420 at 0
>> >  output-test6.ts
>> >  #EXTINF:3.960000,
>> >  #EXT-X-BYTERANGE:1228016 at 0
>> >  output-test7.ts
>> >  #EXT-X-ENDLIST
>> >  localhost:ffmpeg liuqi$
>> >
>> >  ticket-id: #5839
>> >
>> > Signed-off-by: Steven Liu <lingjiujianke at gmail.com>
>> > ---
>> >  libavformat/hlsenc.c | 38 +++++++++++++++++++++++++++++++++-----
>> >  1 file changed, 33 insertions(+), 5 deletions(-)
>> >
>> > diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
>> > index a376312..08995f6 100644
>> > --- a/libavformat/hlsenc.c
>> > +++ b/libavformat/hlsenc.c
>> > @@ -104,6 +104,7 @@ typedef struct HLSContext {
>> >      double duration;      // last segment duration computed so far, in
>> > seconds
>> >      int64_t start_pos;    // last segment starting position
>> >      int64_t size;         // last segment size
>> > +     int64_t max_seg_size; // every segment file max size
>> >      int nb_entries;
>> >      int discontinuity_set;
>> >
>>
>> fatal: corrupt patch at line 11
>> maybe the comment :
>
>
>  > -rw-r--r--  1 liuqi  staff  2792176  9 12 14:44 output-test0.ts
> > -rw-r--r--  1 liuqi  staff  3112528  9 12 14:44 output-test3.ts
> > -rw-r--r--  1 liuqi  staff  3377420  9 12 14:44 output-test6.ts
> > -rw-r--r--  1 liuqi  staff  1228016  9 12 14:44 output-test7.ts
>
> give the error  for patch ??
>

update patch, remove the commit message with '-'
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