[FFmpeg-user] ffmpeg segmenter starves when using -re and high bitrate
ulf johansson
epkuson at gmail.com
Mon May 27 14:30:16 CEST 2013
Hello,
I would need some help with ffmpeg.
Project:
I'm trying to configure ffmpeg to provide live TV HLS streaming and
transcoding to my Ipad in my home.
Input:
Video source: Hauppauge HD PVR(CBR) - analogue Component + OPTICAL => h264
AAC mpegts
CPU: quadcore when full transcoding is used~ 19-39-% load on all cores.
(the lower bitrate => higher CPU load )
OS: LInux Ubuntu
I had to break down the streaming in two steps. (I had some problem with
buffer handling, i.e. the HD PVR stopped streaming, when I performed
transcoding directly from /dev/video0)
1.) Record input stream to file and store the file in a mpeg TS file.
$ /usr/local/bin/ffmpeg -i /dev/video0 -vcodec copy -acodec copy -y
~/repository/recorded_stream.ts
Approx. 10s delay until starting transcoding process on 'ts' file.
2.)Transcode 'ts' and stream using HLS of live TV to IPAD.
$/usr/local/bin/ffmpeg -re -i ~/repository/recorded_stream.ts -vcodec
libx264 -b:v 2000k -acodec copy -s 1024x768 -aspect 4:3 -flags
-global_header -map 0 -f segment -segment_time 10 -segment_list test.m3u8
-segment_list_flags live -segment_list_size 0 -y -segment_format mpegts
stream%05d.ts
Problem Description:
===============
When performing transcoding and using bitrate of approx > 1.2 M (b:v
1000k), the live streaming to the IPAD starves after approximately a few
minutes when new segments are not produced quick enough, i.e. playing the
segments catches up with the available segments from the playlist even if
the player is not started until 3-4 segments are available in playlist. The
QOE result in a short stalls of the live video, and can be reduced by using
pause for a while , but will eventually catch up again and the stalls
resumes.
When the higher bitrate is selected the transcoding FPS goes down 25-27,
which I believe could be the reason for starving the client. TV signal is
NTSC 1080i 59.94 interlaced, or 29.97 FPS, so I would expect the FPS output
to also be 30 FPS for the live transcoded HLS segments.
When I use 1M bitrate an output of 30 FPS is achieved and I don't
experience the starving of file segments.
The same problem can be re-produced with using VLC for viewing the HLS
stream.
I've tried to use forced FPS '-r 30' or '-r 29.97' on the transcoding
process but it seems to have no affect when higher bitrates are used. E.g.
if I set it to -r 32 it will only take affect if bitrate is < 1M.
Would truly appreciate some help to solve the starving file segments since
is significantly impacts the QOE for the end user.
============================
1) Recording file
$ /usr/local/bin/ffmpeg -i /dev/video0 -vcodec copy -acodec copy -y
~/repository/recorded_stream.ts
ffmpeg version git-2013-04-10-2383068 Copyright (c) 2000-2013 the FFmpeg
developers
built on Apr 10 2013 00:29:02 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libass --enable-libfaac
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libspeex --enable-librtmp
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab
--enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 50.100 / 3. 50.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x29eefc0] max_analyze_duration 5000000 reached at 5013333
microseconds
Input #0, mpegts, from '/dev/video0':
Duration: N/A, start: 0.387044, bitrate: 130 kb/s
Program 1
Stream #0:0[0x1011]: Video: h264 (Main) (HDMV / 0x564D4448), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x1100]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 130 kb/s
Output #0, mpegts, to '/home/jocho/repository/recorded_stream.ts':
Metadata:
encoder : Lavf55.1.100
Stream #0:0: Video: h264 (HDMV / 0x564D4448), yuv420p, 1920x1080 [SAR
1:1 DAR 16:9], q=2-31, 29.97 fps, 90k tbn, 29.97 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 130
kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=10219 fps= 62 q=-1.0 Lsize= 150029kB time=00:02:50.53
bitrate=7206.8kbits/s
video:135224kB audio:2719kB subtitle:0 global headers:0kB muxing overhead
8.760707%
$
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
2.1) bitrate 1M, "no starve", no -r, FPS stats => 30 FPS (below 29FPS which
was the last stat output)
$ /usr/local/bin/ffmpeg -re -i ~/repository/recorded_stream.ts -vcodec
libx264 -b:v 1000k -acodec copy -s 1024x768 -aspect 4:3 -flags
-global_header -map 0 -f segment -segment_time 10 -segment_list test.m3u8
-segment_list_flags live -segment_list_size 0 -y -segment_format mpegts
stream%05d.ts
ffmpeg version git-2013-04-10-2383068 Copyright (c) 2000-2013 the FFmpeg
developers
built on Apr 10 2013 00:29:02 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libass --enable-libfaac
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libspeex --enable-librtmp
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab
--enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 50.100 / 3. 50.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x2c4e760] max_analyze_duration 5000000 reached at 5003333
microseconds
Input #0, mpegts, from '/home/jocho/repository/recorded_stream.ts':
Duration: 00:02:50.60, start: 1.400000, bitrate: 7204 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94
tbc
Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 118 kb/s
[libx264 @ 0x2c549a0] using SAR=1/1
[libx264 @ 0x2c549a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1
Cache64
[libx264 @ 0x2c549a0] profile High, level 3.1
[segment @ 0x2c53f00] Codec for stream 0 does not use global headers but
container format requires global headers
[segment @ 0x2c53f00] Codec for stream 1 does not use global headers but
container format requires global headers
Output #0, segment, to 'stream%05d.ts':
Metadata:
encoder : Lavf55.1.100
Stream #0:0: Video: h264, yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1,
1000 kb/s, 90k tbn, 29.97 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 118
kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 1105 fps= 29 q=32766.0 Lsize=N/A time=00:00:36.84 bitrate=N/A dup=1
drop=0
video:4368kB audio:588kB subtitle:0 global headers:0kB muxing overhead
-100.000434%
[libx264 @ 0x2c549a0] frame I:22 Avg QP:20.97 size: 18575
[libx264 @ 0x2c549a0] frame P:474 Avg QP:22.31 size: 6433
[libx264 @ 0x2c549a0] frame B:609 Avg QP:23.91 size: 1666
[libx264 @ 0x2c549a0] consecutive B-frames: 14.7% 27.3% 24.7% 33.3%
[libx264 @ 0x2c549a0] mb I I16..4: 41.2% 50.9% 8.0%
[libx264 @ 0x2c549a0] mb P I16..4: 6.8% 6.8% 0.6% P16..4: 30.3% 5.2%
3.1% 0.0% 0.0% skip:47.2%
[libx264 @ 0x2c549a0] mb B I16..4: 0.3% 0.3% 0.0% B16..8: 23.2% 0.9%
0.2% direct: 1.0% skip:74.2% L0:36.7% L1:61.4% BI: 1.9%
[libx264 @ 0x2c549a0] final ratefactor: 22.56
[libx264 @ 0x2c549a0] 8x8 transform intra:48.6% inter:91.1%
[libx264 @ 0x2c549a0] coded y,uvDC,uvAC intra: 30.9% 34.7% 7.6% inter: 6.1%
9.0% 0.3%
[libx264 @ 0x2c549a0] i16 v,h,dc,p: 36% 36% 4% 24%
[libx264 @ 0x2c549a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 19% 25% 3% 5%
6% 5% 5% 4%
[libx264 @ 0x2c549a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 32% 11% 3% 5%
6% 4% 4% 2%
[libx264 @ 0x2c549a0] i8c dc,h,v,p: 65% 18% 14% 3%
[libx264 @ 0x2c549a0] Weighted P-Frames: Y:1.9% UV:0.4%
[libx264 @ 0x2c549a0] ref P L0: 66.4% 8.2% 18.6% 6.8% 0.0%
[libx264 @ 0x2c549a0] ref B L0: 81.7% 16.0% 2.3%
[libx264 @ 0x2c549a0] ref B L1: 94.4% 5.6%
[libx264 @ 0x2c549a0] kb/s:970.43
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
2.2) bitrate 2M, "starve", no -r, FPS stats => 26-28 FPS (below 27FPS which
was the last stat output, but alternating 26-28 throughout the trasnscoding)
$ /usr/local/bin/ffmpeg -re -i ~/repository/recorded_stream.ts -vcodec
libx264 -b:v 2000k -acodec copy -s 1024x768 -aspect 4:3 -flags
-global_header -map 0 -f segment -segment_time 10 -segment_list test.m3u8
-segment_list_flags live -segment_list_size 0 -y -segment_format mpegts
stream%05d.ts
ffmpeg version git-2013-04-10-2383068 Copyright (c) 2000-2013 the FFmpeg
developers
built on Apr 10 2013 00:29:02 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libass --enable-libfaac
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libspeex --enable-librtmp
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab
--enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 50.100 / 3. 50.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x1cb5760] max_analyze_duration 5000000 reached at 5003333
microseconds
Input #0, mpegts, from '/home/jocho/repository/recorded_stream.ts':
Duration: 00:02:50.60, start: 1.400000, bitrate: 7204 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94
tbc
Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 118 kb/s
[libx264 @ 0x1cbb9a0] using SAR=1/1
[libx264 @ 0x1cbb9a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1
Cache64
[libx264 @ 0x1cbb9a0] profile High, level 3.1
[segment @ 0x1cbaf00] Codec for stream 0 does not use global headers but
container format requires global headers
[segment @ 0x1cbaf00] Codec for stream 1 does not use global headers but
container format requires global headers
Output #0, segment, to 'stream%05d.ts':
Metadata:
encoder : Lavf55.1.100
Stream #0:0: Video: h264, yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1,
2000 kb/s, 90k tbn, 29.97 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 118
kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 649 fps= 27 q=32766.0 Lsize=N/A time=00:00:21.71 bitrate=N/A dup=1
drop=0
video:5349kB audio:346kB subtitle:0 global headers:0kB muxing overhead
-100.000377%
[libx264 @ 0x1cbb9a0] frame I:15 Avg QP:17.04 size: 27166
[libx264 @ 0x1cbb9a0] frame P:301 Avg QP:18.57 size: 12511
[libx264 @ 0x1cbb9a0] frame B:333 Avg QP:20.28 size: 3916
[libx264 @ 0x1cbb9a0] consecutive B-frames: 18.2% 30.8% 28.2% 22.8%
[libx264 @ 0x1cbb9a0] mb I I16..4: 31.2% 53.9% 15.0%
[libx264 @ 0x1cbb9a0] mb P I16..4: 6.9% 10.2% 1.7% P16..4: 36.1% 11.1%
5.2% 0.0% 0.0% skip:28.7%
[libx264 @ 0x1cbb9a0] mb B I16..4: 0.6% 0.4% 0.1% B16..8: 31.3% 2.9%
0.5% direct: 2.6% skip:61.6% L0:37.8% L1:57.2% BI: 5.1%
[libx264 @ 0x1cbb9a0] final ratefactor: 18.84
[libx264 @ 0x1cbb9a0] 8x8 transform intra:53.4% inter:86.7%
[libx264 @ 0x1cbb9a0] coded y,uvDC,uvAC intra: 44.7% 47.5% 18.7% inter:
13.8% 13.3% 1.2%
[libx264 @ 0x1cbb9a0] i16 v,h,dc,p: 29% 35% 4% 31%
[libx264 @ 0x1cbb9a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 22% 19% 3% 5%
6% 5% 5% 4%
[libx264 @ 0x1cbb9a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 35% 12% 2% 4%
4% 3% 3% 2%
[libx264 @ 0x1cbb9a0] i8c dc,h,v,p: 59% 20% 17% 3%
[libx264 @ 0x1cbb9a0] Weighted P-Frames: Y:2.7% UV:0.7%
[libx264 @ 0x1cbb9a0] ref P L0: 65.2% 7.0% 20.1% 7.6% 0.1%
[libx264 @ 0x1cbb9a0] ref B L0: 79.6% 18.4% 1.9%
[libx264 @ 0x1cbb9a0] ref B L1: 93.8% 6.2%
[libx264 @ 0x1cbb9a0] kb/s:2023.47
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
2.3) bitrate 4M, "starve", no -r, FPS stats => 22-24 FPS (below 21FPS which
was the last stat output, but alternating 21-24 throughout the transcoding)
$ /usr/local/bin/ffmpeg -re -i ~/repository/recorded_stream.ts -vcodec
libx264 -b:v 4000k -acodec copy -s 1024x768 -aspect 4:3 -flags
-global_header -map 0 -f segment -segment_time 10 -segment_list test.m3u8
-segment_list_flags live -segment_list_size 0 -y -segment_format mpegts
stream%05d.ts
ffmpeg version git-2013-04-10-2383068 Copyright (c) 2000-2013 the FFmpeg
developers
built on Apr 10 2013 00:29:02 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libass --enable-libfaac
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libspeex --enable-librtmp
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab
--enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 50.100 / 3. 50.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x301a760] max_analyze_duration 5000000 reached at 5003333
microseconds
Input #0, mpegts, from '/home/jocho/repository/recorded_stream.ts':
Duration: 00:02:50.60, start: 1.400000, bitrate: 7204 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94
tbc
Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 118 kb/s
[libx264 @ 0x30209a0] using SAR=1/1
[libx264 @ 0x30209a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1
Cache64
[libx264 @ 0x30209a0] profile High, level 3.1
[segment @ 0x301ff00] Codec for stream 0 does not use global headers but
container format requires global headers
[segment @ 0x301ff00] Codec for stream 1 does not use global headers but
container format requires global headers
Output #0, segment, to 'stream%05d.ts':
Metadata:
encoder : Lavf55.1.100
Stream #0:0: Video: h264, yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1,
4000 kb/s, 90k tbn, 29.97 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 118
kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 484 fps= 21 q=32766.0 Lsize=N/A time=00:00:16.10 bitrate=N/A dup=1
drop=0
video:8041kB audio:257kB subtitle:0 global headers:0kB muxing overhead
-100.000259%
[libx264 @ 0x30209a0] frame I:10 Avg QP:12.15 size: 45657
[libx264 @ 0x30209a0] frame P:231 Avg QP:13.81 size: 24621
[libx264 @ 0x30209a0] frame B:243 Avg QP:15.47 size: 8599
[libx264 @ 0x30209a0] consecutive B-frames: 18.8% 33.1% 29.1% 19.0%
[libx264 @ 0x30209a0] mb I I16..4: 24.8% 58.3% 16.9%
[libx264 @ 0x30209a0] mb P I16..4: 6.2% 15.3% 3.5% P16..4: 31.4% 19.2%
9.5% 0.0% 0.0% skip:14.9%
[libx264 @ 0x30209a0] mb B I16..4: 0.8% 0.7% 0.2% B16..8: 32.3% 9.2%
2.2% direct: 7.5% skip:47.2% L0:39.1% L1:49.7% BI:11.3%
[libx264 @ 0x30209a0] final ratefactor: 14.08
[libx264 @ 0x30209a0] 8x8 transform intra:59.8% inter:71.0%
[libx264 @ 0x30209a0] coded y,uvDC,uvAC intra: 65.1% 63.2% 43.7% inter:
26.2% 18.8% 3.4%
[libx264 @ 0x30209a0] i16 v,h,dc,p: 26% 30% 5% 39%
[libx264 @ 0x30209a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 23% 18% 3% 4%
6% 4% 5% 4%
[libx264 @ 0x30209a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 33% 12% 2% 4%
4% 3% 3% 2%
[libx264 @ 0x30209a0] i8c dc,h,v,p: 56% 20% 19% 4%
[libx264 @ 0x30209a0] Weighted P-Frames: Y:2.6% UV:0.9%
[libx264 @ 0x30209a0] ref P L0: 65.6% 5.7% 20.9% 7.7% 0.1%
[libx264 @ 0x30209a0] ref B L0: 80.2% 18.3% 1.5%
[libx264 @ 0x30209a0] ref B L1: 93.7% 6.3%
[libx264 @ 0x30209a0] kb/s:4078.74
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
2.4) bitrate 2M, "starve", -r 30 , FPS stats => 26-28 FPS (below 28FPS
which was the last stat output, but alternating 26-28 throughout the
transcoding)
OBS, same result as 2.2 without -r 30
$ /usr/local/bin/ffmpeg -re -i ~/repository/recorded_stream.ts -r 30
-vcodec libx264 -b:v 2000k -acodec copy -s 1024x768 -aspect 4:3 -flags
-global_header -map 0 -f segment -segment_time 10 -segment_list test.m3u8
-segment_list_flags live -segment_list_size 0 -y -segment_format mpegts
stream%05d.ts
ffmpeg version git-2013-04-10-2383068 Copyright (c) 2000-2013 the FFmpeg
developers
built on Apr 10 2013 00:29:02 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libass --enable-libfaac
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libspeex --enable-librtmp
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab
--enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 50.100 / 3. 50.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x37db780] max_analyze_duration 5000000 reached at 5003333
microseconds
Input #0, mpegts, from '/home/jocho/repository/recorded_stream.ts':
Duration: 00:02:50.60, start: 1.400000, bitrate: 7204 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94
tbc
Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 118 kb/s
[libx264 @ 0x37e1d20] using SAR=1/1
[libx264 @ 0x37e1d20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1
Cache64
[libx264 @ 0x37e1d20] profile High, level 3.1
[segment @ 0x37e1060] Codec for stream 0 does not use global headers but
container format requires global headers
[segment @ 0x37e1060] Codec for stream 1 does not use global headers but
container format requires global headers
Output #0, segment, to 'stream%05d.ts':
Metadata:
encoder : Lavf55.1.100
Stream #0:0: Video: h264, yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1,
2000 kb/s, 90k tbn, 30 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 118
kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 851 fps= 28 q=32766.0 Lsize=N/A time=00:00:28.30 bitrate=N/A dup=2
drop=0
video:6738kB audio:451kB subtitle:0 global headers:0kB muxing overhead
-100.000299%
[libx264 @ 0x37e1d20] frame I:18 Avg QP:16.76 size: 30818
[libx264 @ 0x37e1d20] frame P:370 Avg QP:18.19 size: 12310
[libx264 @ 0x37e1d20] frame B:463 Avg QP:19.80 size: 3867
[libx264 @ 0x37e1d20] consecutive B-frames: 15.5% 27.0% 26.4% 31.0%
[libx264 @ 0x37e1d20] mb I I16..4: 28.9% 55.1% 16.0%
[libx264 @ 0x37e1d20] mb P I16..4: 6.6% 9.3% 1.6% P16..4: 36.1% 11.1%
5.5% 0.0% 0.0% skip:29.9%
[libx264 @ 0x37e1d20] mb B I16..4: 0.6% 0.5% 0.1% B16..8: 30.8% 2.7%
0.5% direct: 2.7% skip:62.2% L0:38.6% L1:56.9% BI: 4.5%
[libx264 @ 0x37e1d20] final ratefactor: 18.40
[libx264 @ 0x37e1d20] 8x8 transform intra:53.0% inter:86.6%
[libx264 @ 0x37e1d20] coded y,uvDC,uvAC intra: 44.7% 48.5% 20.8% inter:
13.2% 13.7% 1.3%
[libx264 @ 0x37e1d20] i16 v,h,dc,p: 31% 36% 5% 28%
[libx264 @ 0x37e1d20] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 22% 20% 3% 5%
6% 5% 5% 4%
[libx264 @ 0x37e1d20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 34% 13% 3% 4%
4% 4% 3% 2%
[libx264 @ 0x37e1d20] i8c dc,h,v,p: 59% 20% 18% 3%
[libx264 @ 0x37e1d20] Weighted P-Frames: Y:2.2% UV:0.5%
[libx264 @ 0x37e1d20] ref P L0: 65.1% 6.6% 20.4% 7.8% 0.0%
[libx264 @ 0x37e1d20] ref B L0: 79.4% 18.3% 2.3%
[libx264 @ 0x37e1d20] ref B L1: 93.2% 6.8%
[libx264 @ 0x37e1d20] kb/s:1946.00
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
2.5) bitrate 512k, "no starve", -r 32 , FPS stats => 32 FPS (below 31 FPS
which was the last stat output, but after initially a few around 29, it
stabilized to 32 fairly quickly.
It shows that FPS can be forced.
$ /usr/local/bin/ffmpeg -re -i ~/repository/recorded_stream.ts -r 32
-vcodec libx264 -b:v 512k -acodec copy -s 1024x768 -aspect 4:3 -flags
-global_header -map 0 -f segment -segment_time 10 -segment_list test.m3u8
-segment_list_flags live -segment_list_size 0 -y -segment_format mpegts
stream%05d.ts
ffmpeg version git-2013-04-10-2383068 Copyright (c) 2000-2013 the FFmpeg
developers
built on Apr 10 2013 00:29:02 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libass --enable-libfaac
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libspeex --enable-librtmp
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab
--enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 50.100 / 3. 50.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x1dda780] max_analyze_duration 5000000 reached at 5003333
microseconds
Input #0, mpegts, from '/home/jocho/repository/recorded_stream.ts':
Duration: 00:02:50.60, start: 1.400000, bitrate: 7204 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94
tbc
Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 118 kb/s
[libx264 @ 0x1de0d20] using SAR=1/1
[libx264 @ 0x1de0d20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1
Cache64
[libx264 @ 0x1de0d20] profile High, level 3.1
[segment @ 0x1de0060] Codec for stream 0 does not use global headers but
container format requires global headers
[segment @ 0x1de0060] Codec for stream 1 does not use global headers but
container format requires global headers
Output #0, segment, to 'stream%05d.ts':
Metadata:
encoder : Lavf55.1.100
Stream #0:0: Video: h264, yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1,
512 kb/s, 90k tbn, 32 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 118
kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 914 fps= 31 q=32766.0 Lsize=N/A time=00:00:28.60 bitrate=N/A dup=59
drop=0
video:1654kB audio:456kB subtitle:0 global headers:0kB muxing overhead
-100.001018%
[libx264 @ 0x1de0d20] frame I:18 Avg QP:27.26 size: 10046
[libx264 @ 0x1de0d20] frame P:407 Avg QP:29.04 size: 2918
[libx264 @ 0x1de0d20] frame B:489 Avg QP:31.59 size: 665
[libx264 @ 0x1de0d20] consecutive B-frames: 18.2% 24.3% 21.7% 35.9%
[libx264 @ 0x1de0d20] mb I I16..4: 53.8% 42.9% 3.3%
[libx264 @ 0x1de0d20] mb P I16..4: 7.1% 4.7% 0.3% P16..4: 18.2% 2.0%
0.8% 0.0% 0.0% skip:66.8%
[libx264 @ 0x1de0d20] mb B I16..4: 0.1% 0.2% 0.0% B16..8: 13.5% 0.4%
0.1% direct: 0.2% skip:85.5% L0:30.1% L1:68.9% BI: 1.1%
[libx264 @ 0x1de0d20] final ratefactor: 28.13
[libx264 @ 0x1de0d20] 8x8 transform intra:40.7% inter:92.4%
[libx264 @ 0x1de0d20] coded y,uvDC,uvAC intra: 19.6% 19.0% 1.5% inter: 2.0%
1.9% 0.0%
[libx264 @ 0x1de0d20] i16 v,h,dc,p: 43% 33% 5% 19%
[libx264 @ 0x1de0d20] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 18% 26% 3% 4%
5% 4% 5% 3%
[libx264 @ 0x1de0d20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 27% 11% 3% 4%
6% 4% 5% 2%
[libx264 @ 0x1de0d20] i8c dc,h,v,p: 80% 11% 9% 1%
[libx264 @ 0x1de0d20] Weighted P-Frames: Y:2.0% UV:0.5%
[libx264 @ 0x1de0d20] ref P L0: 66.6% 11.2% 16.4% 5.8% 0.0%
[libx264 @ 0x1de0d20] ref B L0: 85.0% 12.6% 2.4%
[libx264 @ 0x1de0d20] ref B L1: 96.2% 3.8%
[libx264 @ 0x1de0d20] kb/s:474.38
!!!!!!!
Would truly appreciate some help to solve the starving file segments since
is significantly impacts the QOE for the end user.
best regard
uffe
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