[mythtv-users] Error Transcoding HD H264 v0.2 11156

Andrew Lyon andrew.lyon at gmail.com
Wed Sep 13 09:53:24 UTC 2006


Hi,

Using v0.2 11156 I can receive BBC HD test channel (Satellite) but am
unable to play it in realtime, even with core 2 duo 2.4 ghz cpu, I
believe that is becuase it is H264 with MBAFF, so I decided to try
recording and transcoding it, recording worked fine (as did commercial
flagging) but transcoding gave a error, I get the same error if I try
to transcode from command line using mythtranscode:

2006-09-13 10:42:16.095 Using runtime prefix = /usr
2006-09-13 10:42:16.130 New DB connection, total: 1
2006-09-13 10:42:16.134 Enabled verbose msgs: important
2006-09-13 10:42:16.136 New DB connection, total: 2
2006-09-13 10:42:16.236 Using protocol version 30
[mpegts @ 0xb73cf410]Parser not found for Codec Id: 94211 !
0: start_time: 2584.334 duration: 53.622
1: start_time: 2584.275 duration: 53.681
2: start_time: 2584.275 duration: 53.618
3: start_time: 2584.278 duration: 53.617
stream: start_time: 28714.167 duration: 596.460 bitrate=20402 kb/s
2006-09-13 10:42:16.696 Transcode: Couldn't find profile for : H.264
2006-09-13 10:42:16.696 Transcoding aborted, no profile found.

here is the mplayer output when playing back the same file (again not
in realtime):

MPlayer 1.0pre8-4.1.1 (C) 2000-2006 MPlayer Team
CPU: AMD Athlon(tm) 64 Processor 3500+ (Family: 15, Model: 31, Stepping: 0)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE SSE2


93 audio & 211 video codecs

Playing 8940_20060912193000.mpg.
TS file format detected.
DEMUX OPEN, AUDIO_ID: -1, VIDEO_ID: -1, SUBTITLE_ID: -2,
PROBING UP TO 2000000, PROG: 0
VIDEO H264(pid=2318)...AUDIO A52(pid=2319) NO SUBS (yet)!  PROGRAM N. 1
Opened TS demuxer, audio: 2000(pid 2319), video: 10000005(pid 2318)...POS=752, P
ROBE=2000000
FPS seems to be: 25.000000
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe)  48000 Hz  384.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
alsa-init: using device default
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 1440 x 1080 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.82:1 - prescaling to correct movie aspect.
VO: [xv] 1440x1080 => 1964x1080 Planar YV12
aspect: Warning: no suitable new res found!
alsa-uninit: pcm closed:  0.034 ct: -0.060  16/ 16 175% 12%  5.7% 13 0

I am going to try again tonight after updating to the latest svn, but
reading the changes between 11156 and 11172 (the latest version for
which there is a gentoo ebuild), I cannot see any changes that would
affect this process.

Any suggestions? Is H264 transcoding not yet supported?

Thanks
Andy


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