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  1. 06 1月, 2017 1 次提交
  3. 05 1月, 2017 3 次提交
  5. 03 1月, 2017 1 次提交
    • B
      avformat/hlsenc: size and duration in segment filenames · 557c0df9
      由 Bela Bodecs 提交于 
      1st:
This patch makes it possible to put actual segment file size (measured
in bytes) and/or duration (calculated in microseconds) into segment
filenames. This feature is useful when post-processing live streaming
access log files. New behaviour works only when -use_localtime option
is set and second_level_segment_size or/and
second_level_segment_duration new hls_flags are specified. %%s is the
placeholder for size and %%t for duration in hls_segment_filename
option. Fix sized trailing zeropadding also works eg. %%09s or %%023t.

A command to test new features:
./ffmpeg -loglevel info -y -f lavfi -i color=c=red:size=640x480:r=25 -f
lavfi -i sine=f=440:b=4:r=44100 -c:v mpeg2video -g 25 -acodec aac
-cutoff 20000 -ac 2 -ar 44100 -ab 192k -f hls -hls_time 3 -hls_list_size
5 -hls_flags
second_level_segment_index+second_level_segment_size+second_level_segment_duration
-use_localtime 1 -use_localtime_mkdir 1 -hls_segment_filename
"segment_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts" stream.m3u8

2nd:
doc/muxers: beside second_level_segment_duration and second_level_segment_size,
added some more details and example to hls_segment_filename,
use_localtime, use_localtime_mkdir, hls_flags. hls_flags option list
reformatted to table
Signed-off-by: NBela Bodecs <bodecsb@vivanet.hu>
Signed-off-by: NSteven Liu <lq@chinaffmpeg.org>
      557c0df9
  7. 01 1月, 2017 2 次提交
  9. 29 12月, 2016 1 次提交
  11. 27 12月, 2016 2 次提交
    • B
      avformat/hlsenc: strftime identifiers and segment index · 0ff8c6b6
      由 Bodecs Bela 提交于 
       in filenames

Putting date/time values into segment filenames is very usefull.
But to produce non-conflicting segment filenames with -use_localtime
option with date/time
values in hls_segment_filename option, sometimes is not enough.
Like in cases when multiple segments produced in the same second.
But hlsenc currently does not make possible to use segment index (%d) at
the

same time whe use_localtime is in effect, due to identifier conflict.
This patch makes possible to use strftime identifiers and still put
segment index (%d) at same time in segment filenames by introducing
second_level_segment_index flag. When -use_localtime is active,
identifier %d is for month day index, so %%d is the segment index
placeholder. This enhanced behaviour only exists when new
second_level_segment_index flag is specified.
For instance putting 'segment_%Y%m%d%H%M%S_%%05d.ts' value into
-hls_segment_filename option and specifing -hls_flags
second_level_segment_index and -use_localtime 1, may produce segment
filename as 'segment_20161230235758_00002.ts'

An example:

ffmpeg -loglevel info -y -f lavfi -i color=c=red:size=640x480:r=25 -f
lavfi -i anullsrc=r=44100:cl=stereo -c:v mpeg2video -g 25 -acodec aac
-cutoff 20000 -ac 2 -ar 44100 -ab 192k -f hls -hls_time 3 -hls_list_size
5 -hls_flags delete_segments+second_level_segment_index -use_localtime 1
-hls_segment_filename "segment_%Y%m%d%H%M%S_%%05d.ts" stream.m3u8

will produce segments filenames:

....
segment_20161227005902_00013.ts
segment_20161227005902_00014.ts
segment_20161227005902_00015.ts
segment_20161227005903_00016.ts
segment_20161227005903_00017.ts
segment_20161227005903_00018.ts
segment_20161227005903_00019.ts
segment_20161227005903_00020.ts
....
Signed-off-by: NBela Bodecs <bodecsb@vivanet.hu>
      0ff8c6b6
    • J
      Fix bug when incrementing initial_prog_date_time when removing segments · c7c0046e
      由 Jesper Ek 提交于 
      initial_prog_date_time shouldn't be adjusted when deleting segments
from disk, but rather when segments are removed from the playlist.
Signed-off-by: NJesper Ek <deadbeef84@gmail.com>
Signed-off-by: NSteven Liu <lq@chinaffmpeg.org>
      c7c0046e
  13. 26 12月, 2016 1 次提交
  15. 07 12月, 2016 1 次提交
    • S
      avformat/hlsenc: save the EXT-X-DISCONTINUITY from old list · 6b95da9a
      由 Steven Liu 提交于 
      when use fix ticket 2nd problem.

command line test step:
rm -rf output*;./ffmpeg  -i ~/Movies/objectC/facebook.mp4 -an -c:v copy
-f hls -hls_time 4 -hls_list_size 5 -hls_flags +delete_segments
-hls_flags +append_list -hls_flags +omit_endlist -hls_flags
+discont_start -t 50 output.m3u8
./ffmpeg -i ~/Movies/objectC/facebook.mp4 -an -c:v libx264 -g 4 -f hls
-hls_time 4 -hls_list_size 5 -hls_flags +delete_segments -hls_flags
+append_list -hls_flags +omit_endlist -hls_flags +discont_start -t 5
output.m3u8
./ffmpeg -i ~/Movies/objectC/facebook.mp4 -an -c:v libx264 -g 4 -f hls
-hls_time 4 -hls_list_size 5 -hls_flags +delete_segments -hls_flags
+append_list -hls_flags +omit_endlist -hls_flags +discont_start -t 5
output.m3u8

result:
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:5
 #EXT-X-MEDIA-SEQUENCE:6
 #EXTINF:4.120000,
 output6.ts
 #EXT-X-DISCONTINUITY
 #EXTINF:4.000000,
 output7.ts
 #EXTINF:0.960000,
 output8.ts
 #EXT-X-DISCONTINUITY
 #EXTINF:4.000000,
 output9.ts
 #EXTINF:0.960000,
 output10.ts
Signed-off-by: NSteven Liu <lq@chinaffmpeg.org>
      6b95da9a
  17. 05 12月, 2016 1 次提交
  19. 12 11月, 2016 1 次提交
  21. 02 11月, 2016 2 次提交
  23. 10 10月, 2016 1 次提交
  25. 04 10月, 2016 1 次提交
    • liuqi_123's avatar
      avformat/hlsenc: support multi level path in m3u8 with filename · be1d3249
      由 liuqi_123 提交于 
      before patch:

localhost:osx liuqi$ tree 20160926/
20160926/
└── file-20160909
    └── 26
        └── 16
            └── 15
                ├── 46
                │   ├── 13.ts
                │   ├── 25.ts
                │   ├── 36.ts
                │   ├── 45.ts
                │   └── 54.ts
                └── 47
                    ├── 04.ts
                    ├── 14.ts
                    ├── 24.ts
                    └── 35.ts

6 directories, 9 files
localhost:osx liuqi$ cat out.m3u8
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:12
 #EXT-X-MEDIA-SEQUENCE:0
 #EXTINF:11.360000,
 13.ts
 #EXTINF:10.800000,
 25.ts
 #EXTINF:9.120000,
 36.ts
 #EXTINF:8.760000,
 45.ts
 #EXTINF:10.200000,
 54.ts
 #EXTINF:10.720000,
 04.ts
 #EXTINF:9.600000,
 14.ts
 #EXTINF:10.600000,
 24.ts
 #EXTINF:8.760000,
 35.ts
 #EXT-X-ENDLIST

after patch:

localhost:osx liuqi$ tree 20160926/
20160926/
└── file-20160909
    └── 26
        └── 16
            └── 15
                ├── 46
                │   ├── 13.ts
                │   ├── 25.ts
                │   ├── 36.ts
                │   ├── 45.ts
                │   └── 54.ts
                └── 47
                    ├── 04.ts
                    ├── 14.ts
                    ├── 24.ts
                    └── 35.ts

6 directories, 9 files
localhost:osx liuqi$ cat out.m3u8
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:12
 #EXT-X-MEDIA-SEQUENCE:0
 #EXTINF:11.360000,
 20160926/file-20160909/26/16/15/46/13.ts
 #EXTINF:10.800000,
 20160926/file-20160909/26/16/15/46/25.ts
 #EXTINF:9.120000,
 20160926/file-20160909/26/16/15/46/36.ts
 #EXTINF:8.760000,
 20160926/file-20160909/26/16/15/46/45.ts
 #EXTINF:10.200000,
 20160926/file-20160909/26/16/15/46/54.ts
 #EXTINF:10.720000,
 20160926/file-20160909/26/16/15/47/04.ts
 #EXTINF:9.600000,
 20160926/file-20160909/26/16/15/47/14.ts
 #EXTINF:10.600000,
 20160926/file-20160909/26/16/15/47/24.ts
 #EXTINF:8.760000,
 20160926/file-20160909/26/16/15/47/35.ts
 #EXT-X-ENDLIST
Signed-off-by: liuqi_123's avatarSteven Liu <lingjiujianke@gmail.com>
      be1d3249
  27. 01 10月, 2016 1 次提交
  29. 24 9月, 2016 1 次提交
    • liuqi_123's avatar
      avformat/hlsenc: refine EXT-X-BYTERANGE support for segments · 1212e346
      由 liuqi_123 提交于 
      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/_index.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 0 -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@0
 output-test0.ts
 #EXTINF:3.000000,
 #EXT-X-BYTERANGE:721356@1334988
 output-test0.ts
 #EXTINF:3.000000,
 #EXT-X-BYTERANGE:735832@2056344
 output-test0.ts
 #EXTINF:6.000000,
 #EXT-X-BYTERANGE:1645940@0
 output-test3.ts
 #EXTINF:3.000000,
 #EXT-X-BYTERANGE:715152@1645940
 output-test3.ts
 #EXTINF:3.000000,
 #EXT-X-BYTERANGE:751436@2361092
 output-test3.ts
 #EXTINF:9.000000,
 #EXT-X-BYTERANGE:3377420@0
 output-test6.ts
 #EXTINF:3.960000,
 #EXT-X-BYTERANGE:1228016@0
 output-test7.ts
 #EXT-X-ENDLIST
 localhost:ffmpeg liuqi$

 ticket-id: #5839
Signed-off-by: liuqi_123's avatarSteven Liu <lingjiujianke@gmail.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>
      1212e346
  31. 15 9月, 2016 1 次提交
  33. 14 9月, 2016 2 次提交
  35. 08 9月, 2016 1 次提交
  37. 05 9月, 2016 1 次提交
  39. 31 8月, 2016 1 次提交
  41. 29 8月, 2016 1 次提交
  43. 21 8月, 2016 1 次提交
  45. 05 8月, 2016 1 次提交
  47. 11 7月, 2016 1 次提交
  49. 13 3月, 2016 1 次提交
  51. 11 3月, 2016 1 次提交
  53. 24 2月, 2016 1 次提交
    • A
      lavf: replace AVStream.codec with AVStream.codecpar · 9200514a
      由 Anton Khirnov 提交于 
      Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.

In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.

There are multiple important problems with this approach:
    - the fields in AVCodecContext are in general one of
        * stream parameters
        * codec options
        * codec state
      However, it's not clear which ones are which. It is consequently
      unclear which fields are a demuxer allowed to set or a muxer allowed to
      read. This leads to erratic behaviour depending on whether decoding or
      encoding is being performed or not (and whether it uses the AVStream
      embedded codec context).
    - various synchronization issues arising from the fact that the same
      context is used by several different APIs (muxers/demuxers,
      parsers, bitstream filters and encoders/decoders) simultaneously, with
      there being no clear rules for who can modify what and the different
      processes being typically delayed with respect to each other.
    - avformat_find_stream_info() making it necessary to support opening
      and closing a single codec context multiple times, thus
      complicating the semantics of freeing various allocated objects in the
      codec context.

Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
      9200514a
  55. 17 2月, 2016 1 次提交
  57. 11 2月, 2016 1 次提交
  59. 02 2月, 2016 1 次提交
  61. 24 1月, 2016 1 次提交
    • A
      lavf: allow custom IO for all files · 9f61abc8
      由 Anton Khirnov 提交于 
      Some (de)muxers open additional files beyond the main IO context.
Currently, they call avio_open() directly, which prevents the caller
from using custom IO for such streams.

This commit adds callbacks to AVFormatContext that default to
avio_open2()/avio_close(), but can be overridden by the caller. All
muxers and demuxers using AVIO are switched to using those callbacks
instead of calling avio_open()/avio_close() directly.

(de)muxers that use the URLProtocol layer directly instead of AVIO
remain unconverted for now. This should be fixed in later commits.
      9f61abc8
  63. 20 12月, 2015 1 次提交
  65. 13 12月, 2015 1 次提交
  67. 04 12月, 2015 1 次提交