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• RoQ on Dreamcast

  18 mars 2011, par Multimedia Mike — Sega Dreamcast

  I have been working on that challenge to play back video on the Sega Dreamcast. To review, I asserted that the RoQ format would be a good fit for the Sega Dreamcast hardware. The goal was to play 640x480 video at 30 frames/second. Short version : I have determined that it is possible to decode such video in real time. However, I ran into certain data rate caveats.

  First off : Have you ever wondered if the Dreamcast can read an 80mm optical disc ? It can ! I discovered this when I only had 60 MB of RoQ samples to burn on a disc and a spindle full of these 210MB-capacity 80mm CD-Rs that I never have occasion to use.

  
  
  

  New RoQ Library
  There are open source RoQ decoders out there but I decided to write a new one. A few reasons : 1) RoQ is so simple that I didn’t think it would take too long ; 2) it would be nice to have a RoQ library that is license-compatible (BSD-like) with the rest of the KallistiOS distribution ; 3) the idroq.tar.gz distribution, while license-compatible, has enough issues that I didn’t want to correct it.

  Thankfully, I was correct about the task not being too difficult : I put together a new RoQ decoder in short order. I’m a bit embarrassed to admit that the part I had the most trouble with was properly converting YUV -> RGB.
  
  About the approach I took : While the original idroq.tar.gz decoder maintains YUV 4:2:0 codebooks (which led to chroma bugs during motion compensation) and FFmpeg’s decoder maintains YUV 4:4:4 codebooks, this decoder is built to convert the YUV 4:2:0 vectors into RGB565 vectors during the vector unpacking phase. Thus, the entire frame is rendered in RGB565 — no lengthy YUV -> RGB conversion after decoding — and all pixels are shuffled around as 16-bit units (minor speedup vs. shuffling everything as bytes).

  I also entertained the idea of maintaining YUYV codebooks (since the DC supports that colorspace as a texture format). But I scrapped that idea when I remembered it would lead to the same chroma bleeding problem seen in the original idroq.tar.gz decoder.

  Onto The Dreamcast
  I developed the library on a Linux computer, allowing it to output a series of PNM files for visual verification and debugging. Dropping it into a basic DC/KOS-compatible program was trivial and the first order of business was profiling.

  At first, I profiled the entire decode operation : open file, then read and decode each chunk while tossing away the results. I was roundly disappointed to see that, e.g., an 8.5-second RoQ sample needed a little more than 20 seconds to complete. Not real time. I performed a series of optimizations on the decoding library that netted notable performance gains when profiling on Linux. When I brought these same optimizations over to the DC, decoding time didn’t improve at all. This was my first suspicion that perhaps my assumptions regarding the DC’s optical drive’s data rate were not correct.

  Dreamcast Data Rate Profiling
  Let’s start with some definitions : In terms of data rate, an ’X’, i.e., 1X is the minimum data rate needed to read CD quality audio from a disc. At that speed, a drive should be able to stream 75 sectors each second. When reading mode 1/form 1 CD-ROM data, each sector has 2048 bytes (2 kbytes), so a single-speed data rate should achieve 150 kbytes/sec.

  The Dreamcast is supposed to possess a 12X optical drive. This would imply a maximum data rate of 150 kbytes/sec * 12 = 1800 kbytes/sec.

  Rigging up a trivial experiment using the RoQ samples burned on a few different CD-R discs, the best data rate I can see is about 500-525 kbytes/sec, or around 3.5X.

  Where’s the discrepancy ? My first theory has to do with the fact that not all optical media is created equal. This is why optical drives often advertise a slew of numbers which refer to the best theoretical speed for reading a CD vs. writing a CD-R vs. writing a CD-RW, etc. Perhaps the DC drive can’t read CD-Rs very quickly. To test this theory, I tried streaming a large file from a conventionally mastered CD-ROM. This worked well for the closest CD-ROM I had on hand : I was able to stream data at a rate that works out to about 6.5X.

  I smell a science project for another evening : Profiling read speeds from a mastered CD-ROM, burned CD-R, and also a mastered GD-ROM, on each of the 3 Dreamcast consoles I possess (I’ve heard that there’s variance between optical drives depending on manufacturing run).

  The Good News
  I added a little finer-grained code to profile just the video decoding functions. The good news is that the decoder meets my real time goals : That 8.5-second RoQ sample encoded at 640x480x30fps makes its way through the video decoding functions on the DC in a little less than 5 seconds. If the optical drive can supply the data fast enough, the video decoder can take care of the rest.

  The RoQ encoder included with FFmpeg does not honor any bitrate parameters. Instead, I encoded the same file at 320x240. It reportedly decoded in real time and can be streamed in real time as well.

  I say "reportedly" because I’m simply working from textual output at this point ; the next phase is to hook the decoder up to the display hardware.

• Convert video with ffmpeg to ogg theora [closed]

  19 juillet 2012, par Marcus

  I'm looking at this example http://blog.archive.org/2008/11/25/fast-and-reliable-way-to-encode-theora-ogg-videos-using-ffmpeg-libtheora-and-liboggz/ but it seems like ffmpeg now has support for converting videos to ogg theora out of the box. Does anyone have a detailed example of this ?

• Encoding for HLS using FFMPEG results in have a decreasing DTS

  29 décembre 2014, par Luuk D. Jansen

  I am trying to encode video for HTS live streaming, but am having problems with validating the stream using Apple Media Validator (mediastreamvalidator).
  (my test file : http://dominicansinteractive.idoms.org/media/9536/playlist.m3u8)

  The output is :

  --------------------------------------------------------------------------------
  
  http://dominicansinteractive.idoms.org/media/9536/199/prog_index.m3u8
  
  --------------------------------------------------------------------------------
  
  
  
  Playlist Validation: 
  
  
  
      OK
  
  
  
  Segments:
  
  
  
  segment_00000.ts:
  
  
  
      ERROR: (-1) Decreasing DTS were detected in track 0
  
      ERROR: (-1) Decreasing DTS were detected in track 1
  
  
  
      Average segment duration: 8.07 seconds
  
      Average segment bitrate: 2155094.67 bps
  
      Average segment structural overhead: 206525.83 bps (9.58 %)

  ---

  The second segment doesn’t seem to have the problem :

  [mpegts @ 0x1d78120] Format mpegts probed with size=2048 and score=100
  
  [mpegts @ 0x1d78120] stream=0 stream_type=1b pid=100 prog_reg_desc=
  
  [mpegts @ 0x1d78120] stream=1 stream_type=f pid=101 prog_reg_desc=
  
  [mpegts @ 0x1d78120] File position before avformat_find_stream_info() is 0
  
  [h264 @ 0x1d7c1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x1d7c1c0] no picture 
  
  [h264 @ 0x1d7c1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
     Last message repeated 3 times
  
  [mpegts @ 0x1d78120] max_analyze_duration 5000000 reached at 5013333
  
  [mpegts @ 0x1d78120] File position after avformat_find_stream_info() is 0

  ---

  This seems to be a serious problem for HLS, so I am looking if there is a way to fix this.

  When looking with FFMPEG at the encoded file I get (encoder output/command at the bottom of the email) :

  ffmpeg -loglevel 99 -i encoded.ts 
  
  ffmpeg version N-37783-gdf3a96c Copyright (c) 2000-2012 the FFmpeg developers
  
   built on Jul  4 2012 07:44:52 with gcc 4.4.5
  
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libvpx --enable-libfaac --enable-nonfree
  
   libavutil      51. 63.100 / 51. 63.100
  
   libavcodec     54. 32.100 / 54. 32.100
  
   libavformat    54. 14.100 / 54. 14.100
  
   libavdevice    54.  0.100 / 54.  0.100
  
   libavfilter     3.  0.101 /  3.  0.101
  
   libswscale      2.  1.100 /  2.  1.100
  
   libswresample   0. 15.100 /  0. 15.100
  
   libpostproc    52.  0.100 / 52.  0.100
  
  [mpegts @ 0x2023120] Format mpegts probed with size=2048 and score=100
  
  [mpegts @ 0x2023120] stream=0 stream_type=1b pid=100 prog_reg_desc=
  
  [mpegts @ 0x2023120] stream=1 stream_type=f pid=101 prog_reg_desc=
  
  [mpegts @ 0x2023120] File position before avformat_find_stream_info() is 0
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x20271c0] no picture 
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 143280 in que
  
     Last message repeated 6 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 158640 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 175920 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 193200 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 210480 in que
  
     Last message repeated 7 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 227760 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 245040 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 262320 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 279600 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 296880 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 314160 in que
  
     Last message repeated 7 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 331440 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 348720 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 366000 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 383280 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 400560 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 417840 in que
  
     Last message repeated 6 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 433200 in que
  
     Last message repeated 6 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 448560 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 465840 in que
  
     Last message repeated 6 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 481200 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 498480 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 515760 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 533040 in que
  
     Last message repeated 6 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 548400 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] max_analyze_duration 5000000 reached at 5000000
  
  [mpegts @ 0x2023120] File position after avformat_find_stream_info() is 0
  
  
  
  And when at the first segmented file:
  
  ffmpeg -loglevel 99 -i segment_00000.ts 
  
  ffmpeg version N-37783-gdf3a96c Copyright (c) 2000-2012 the FFmpeg developers
  
   built on Jul  4 2012 07:44:52 with gcc 4.4.5
  
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libvpx --enable-libfaac --enable-nonfree
  
   libavutil      51. 63.100 / 51. 63.100
  
   libavcodec     54. 32.100 / 54. 32.100
  
   libavformat    54. 14.100 / 54. 14.100
  
   libavdevice    54.  0.100 / 54.  0.100
  
   libavfilter     3.  0.101 /  3.  0.101
  
   libswscale      2.  1.100 /  2.  1.100
  
   libswresample   0. 15.100 /  0. 15.100
  
   libpostproc    52.  0.100 / 52.  0.100
  
  [mpegts @ 0x1a0b120] Format mpegts probed with size=2048 and score=100
  
  [mpegts @ 0x1a0b120] stream=0 stream_type=1b pid=100 prog_reg_desc=
  
  [mpegts @ 0x1a0b120] stream=1 stream_type=f pid=101 prog_reg_desc=
  
  [mpegts @ 0x1a0b120] File position before avformat_find_stream_info() is 0
  
  [mpegts @ 0x1a0b120] Invalid timestamps stream=0, pts=1920, dts=8589929312, size=2355
  
  [mpegts @ 0x1a0b120] Invalid timestamps stream=0, pts=16320, dts=8589932912, size=3203
  
  [h264 @ 0x1a0f1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x1a0f1c0] no picture 
  
  [h264 @ 0x1a0f1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
     Last message repeated 3 times
  
  [mpegts @ 0x1a0b120] max_analyze_duration 5000000 reached at 5013333
  
  [mpegts @ 0x1a0b120] File position after avformat_find_stream_info() is 0

  This problem does not occur with the BASELINE profile, but does with MAIN.

  The command I use for encoding is :

  ffmpeg, -i, [path]/test.mov, -y, -f, mpegts, -acodec, aac, -strict, -2, -ar, 48000, -b:a, 128000, -s, 960x540, -vcodec, libx264, -b:v, 1200000, -aspect, 960:540, -r, 25, -level, 3.1, -vprofile, main, -flags, +loop, -cmp, +chroma, -partitions, +parti4x4+partp8x8+partb8x8, -subq, 5, -trellis, 1, -refs, 1, -coder, 0, -me_range, 16, -keyint_min, 25, -sc_threshold, 40, -i_qfactor, 0.71, -bt, 200k, -maxrate, 1200000, -bufsize, 1200000, -rc_eq, 'blurCplx^(1-qComp)', -qcomp, 0.6, -qmin, 10, -qmax, 51, -qdiff, 4, -level, 30, -g, 30, -async, 2, [path]/encoded.ts
  
  
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavutil      51. 63.100 / 51. 63.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavcodec     54. 32.100 / 54. 32.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavformat    54. 14.100 / 54. 14.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavdevice    54.  0.100 / 54.  0.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavfilter     3.  0.101 /  3.  0.101
  
  08:40:29,844 DEBUG ~ FFMPEG(1):   libswscale      2.  1.100 /  2.  1.100
  
  08:40:29,844 DEBUG ~ FFMPEG(1):   libswresample   0. 15.100 /  0. 15.100
  
  08:40:29,844 DEBUG ~ FFMPEG(1):   libpostproc    52.  0.100 / 52.  0.100
  
  08:40:30,033 DEBUG ~ FFMPEG(1): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '[path]/test.mov':
  
  08:40:30,033 DEBUG ~ FFMPEG(1):   Metadata:
  
  08:40:30,033 DEBUG ~ FFMPEG(1):     major_brand     : qt  
  
  08:40:30,033 DEBUG ~ FFMPEG(1):     minor_version   : 537199360
  
  08:40:30,035 DEBUG ~ FFMPEG(1):     compatible_brands: qt  
  
  08:40:30,035 DEBUG ~ FFMPEG(1):     creation_time   : 2011-12-05 10:54:24
  
  08:40:30,036 DEBUG ~ FFMPEG(1):     timecode        : 00:00:00:00
  
  08:40:30,036 DEBUG ~ FFMPEG(1):   Duration: 00:00:24.20, start: 0.000000, bitrate: 9912 kb/s
  
  08:40:30,037 DEBUG ~ FFMPEG(1):     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 9777 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
  
  08:40:30,037 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,037 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,037 DEBUG ~ FFMPEG(1):       handler_name    : Apple Video Media Handler
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 129 kb/s
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,038 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,038 DEBUG ~ FFMPEG(1):       handler_name    : Apple Sound Media Handler
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,038 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,039 DEBUG ~ FFMPEG(1):       handler_name    : Time Code Media Handler
  
  08:40:30,039 DEBUG ~ FFMPEG(1):       timecode        : 00:00:00:00
  
  08:40:30,092 DEBUG ~ FFMPEG(1): [graph 0 input from stream 0:0 @ 0x1c17180] w:1920 h:1080 pixfmt:yuv420p tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
  
  08:40:30,092 DEBUG ~ FFMPEG(1): [output stream 0:0 @ 0x1c033a0] No opaque field provided
  
  08:40:30,110 DEBUG ~ FFMPEG(1): [scaler for output stream 0:0 @ 0x1c18040] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:960 h:540 fmt:yuv420p sar:0/1 flags:0x4
  
  08:40:30,110 DEBUG ~ FFMPEG(1): [graph 1 input from stream 0:1 @ 0x1c53440] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3
  
  08:40:30,110 DEBUG ~ FFMPEG(1): -async is forwarded to lavfi similarly to -af aresample=min_comp=0.001:min_hard_comp=0.100000:max_soft_comp=0.000042.
  
  08:40:30,122 DEBUG ~ FFMPEG(1): [graph 1 aresample for input stream 0:1 @ 0x1c36880] chl:stereo fmt:s16 r:48000Hz -> chl:stereo fmt:flt r:48000Hz
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] using SAR=1/1
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame MB size (60x34) > level limit (1620)
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] DPB size (4 frames, 3133440 bytes) > level limit (3 frames, 3110400 bytes)
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] MB rate (51000) > level limit (40500)
  
  08:40:30,170 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] using cpu capabilities: MMX2 SSE2Slow SlowCTZ
  
  08:40:30,182 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] profile Main, level 3.0
  
  08:40:30,235 DEBUG ~ FFMPEG(1): [mpegts @ 0x1be3540] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
  
  08:40:30,235 DEBUG ~ FFMPEG(1): Output #0, mpegts, to '[path]/encoded.ts':
  
  08:40:30,235 DEBUG ~ FFMPEG(1):   Metadata:
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     major_brand     : qt  
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     minor_version   : 537199360
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     compatible_brands: qt  
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     timecode        : 00:00:00:00
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     encoder         : Lavf54.14.100
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     Stream #0:0(eng): Video: h264, yuv420p, 960x540 [SAR 1:1 DAR 16:9], q=10-51, 1200 kb/s, 90k tbn, 25 tbc
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,235 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,235 DEBUG ~ FFMPEG(1):       handler_name    : Apple Video Media Handler
  
  08:40:30,236 DEBUG ~ FFMPEG(1):     Stream #0:1(eng): Audio: aac, 48000 Hz, stereo, flt, 128 kb/s
  
  08:40:30,236 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,236 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,236 DEBUG ~ FFMPEG(1):       handler_name    : Apple Sound Media Handler
  
  08:40:30,236 DEBUG ~ FFMPEG(1): Stream mapping:
  
  08:40:30,236 DEBUG ~ FFMPEG(1):   Stream #0:0 -> #0:0 (h264 -> libx264)
  
  08:40:30,236 DEBUG ~ FFMPEG(1):   Stream #0:1 -> #0:1 (aac -> aac)
  
  
  
  [...]
  
  
  
  08:40:55,398 DEBUG ~ FFMPEG(1): video:3121kB audio:359kB subtitle:0 global headers:0kB muxing overhead 11.132085%
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame I:21    Avg QP:21.57  size: 88153
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame P:233   Avg QP:22.74  size:  5560
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame B:351   Avg QP:27.45  size:   141
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] consecutive B-frames: 21.7%  2.0%  3.0% 73.4%
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb I  I16..4: 54.5%  0.0% 45.5%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb P  I16..4:  4.7%  0.0%  1.3%  P16..4: 24.6%  3.5%  0.8%  0.0%  0.0%    skip:65.1%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb B  I16..4:  0.1%  0.0%  0.1%  B16..8:  0.5%  0.1%  0.0%  direct: 0.6%  skip:98.6%  L0:32.3% L1:47.1% BI:20.6%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] coded y,uvDC,uvAC intra: 59.4% 5.8% 0.4% inter: 5.4% 3.0% 0.0%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i16 v,h,dc,p: 58% 16% 21%  4%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 21% 17%  5% 10%  7%  5%  5% 10%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i8c dc,h,v,p: 94%  3%  3%  0%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] Weighted P-Frames: Y:13.7% UV:3.4%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] kb/s:1056.61

  For segmenting is :

  ffmpeg, -i,[path]encoded.ts, -y, -c, copy, -flags, global_header, -map, 0, -f, segment, -segment_time, 10, -segment_list, [path]/fileList.txt, -segment_format, mpegts, [path]/segment_%05d.ts]

  Any help would really be appreciated !