[MPlayer-dev-eng] a/v sync drift in avi files with mp3 VBR audio?
Frodo
csharprules at hotmail.com
Fri Dec 13 08:55:16 CET 2002
Hi guys,
I hope someone can help me out here.
I'm busy porting mplayer 2 the xbox (yes its opensource!!)
anyway its working pretty good with all kind of files
the only thing is that I get an a/v sync drift when playing an avi (divx3)
file with mp3 VBR audio in it
the first 40 seconds or so it is not noticable, but you start 2 notice it
after it 1 minute
if you look in the debug log it doesn't show up:
### A: 75.158 ( 75.526) V: 75.534 A-V:-0.0080 quality:6
I already tried all known options like -bps / -nobps / -framedrop
/ -autosync
but none solve the problem.
if you want I can upload my file (16megs) to
ftp://ftp.mplayer.hq/mplayer/samples
just some facts I noticed:
- when playing the file with my cygwin-compiled mplayer same thing happens
- I had to write my own libvo & libao driver and based them on
libvo\directx.c & libao\ao_win32.c
Any suggestions what can cause this ?
Frodo
here's the log:
CPU vendor name: GenuineIntel max cpuid level: 2
CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville (Family: 6,
Stepping: 3)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled with RUNTIME CPU Detection - warning, it's not optimal! To get best
performance, recompile MPlayer with --disable-runtime-cpudetection
Reading d:\mediaplayer\root\codecs.conf:
44 audio & 109 video codecs
Font font.desc loaded successfully! (206 chars)
opened font.desc
filename=d:\movies\movies\spidermancut.avi
open filename=d:\movies\movies\spidermancut.avi
Not an URL!
File size is 37404672 bytes
Detected AVI file format!
LIST hdrl len=8830
list_end=0x2292
CHUNK avih len=56
list_end=0x2292 pos=0x58 chunksize=0x0 next=0x58
LIST strl len=4244
list_end=0x10F4
CHUNK strh len=56
==> Found video stream: 0
list_end=0x10F4 pos=0xA4 chunksize=0x0 next=0xA4
CHUNK strf len=40
found 'bih', 40 bytes of 40
Regenerating keyframe table for DIVX 3 video
list_end=0x10F4 pos=0xD4 chunksize=0x0 next=0xD4
CHUNK JUNK len=4120
list_end=0x10F4 pos=0xDC chunksize=0x1018 next=0x10F4
LIST strl len=4234
list_end=0x2186
CHUNK strh len=56
==> Found audio stream: 1
list_end=0x2186 pos=0x1140 chunksize=0x0 next=0x1140
CHUNK strf len=30
found 'wf', 30 bytes of 18
list_end=0x2186 pos=0x1166 chunksize=0x0 next=0x1166
CHUNK JUNK len=4120
list_end=0x2186 pos=0x116E chunksize=0x1018 next=0x2186
LIST odml len=260
list_end=0x2292
CHUNK dmlh len=248
list_end=0x2292 pos=0x219A chunksize=0xF8 next=0x2292
CHUNK JUNK len=1382
list_end=0x2292 pos=0x229A chunksize=0x566 next=0x2800
Broken chunk? chunksize=1382 (id=JUNK)
CHUNK JUNK len=1382
list_end=0x0 pos=0x229A chunksize=0x566 next=0x2800
LIST movi len=37281518
list_end=0x23906F6
Found movie at 0x280C - 0x23906F6
CHUNK idx1 len=112000
Reading INDEX block, 7000 chunks for 4085 frames (fpos=023906FE)
list_end=0x0 pos=0x23ABC7E chunksize=0x0 next=0x23ABC7E
CHUNK JUNK len=890
list_end=0x0 pos=0x23ABC86 chunksize=0x37A next=0x23AC000
avi header read
AVI index offset: 0x2808 (movi=0x280C idx0=0x4 idx1=0x240C)
Auto-selected AVI audio ID = 1
Auto-selected AVI video ID = 0
AVI: Searching for audio stream (id:1)
AVI video length=37222600
VIDEO: [DIV3] 640x352 24bpp 23.98 fps 1747.8 kbps (213.3 kbyte/s)
filed opened
open codecs
[V] filefmt:3 fourcc:0x33564944 size:640x352 fps:23.98 ftime:=0.0417
open subtitles prot: host: file:d:\movies\movies\spidermancut.srt
Can't load subtitles: d:\movies\movies\spidermancut.srt
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
dec_audio: Allocating 131072 + 65536 = 196608 bytes for output buffer
FFmpeg's libavcodec audio codec
INFO: libavcodec init audio
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 20000->192000 (160.0 kbit)
Selected audio codec: [ffmp3] afm:ffmpeg (FFmpeg layer-3 audio decoder -
integer only)
<vo_directx><INFO>preinit succesfully finished
Opening video filter: [expand=-1:-1:-1:-1:1]
Expand: -1 x -1, -1 ; -1 (-1=autodetect) osd: 1
Opening video filter: [pp]
[expand] query(Planar YV12) -> 3
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init video OK
Selected video codec: [ffdivx] vfm:ffmpeg (FFmpeg DivX ;-) (MS MPEG-4 v3))
==========================================================================
[PP] Using external postprocessing filter, max q = 6
AutoQ: setting quality to 6
ao_xbox: Samplerate:48000Hz Channels:2 Format:Signed 16-bit (Little-Endian)
ao_xbox: Buffersize:4096
ao_xbox:48000Hz 2ch Signed 16-bit (Little-Endian)
AO: Description: XBox DirectSound audio output
AO: Author: Frodo
Start playing...
codecs opened
ID_VIDEO_FORMAT=DIV3
ID_VIDEO_BITRATE=1747752
ID_VIDEO_WIDTH=640
ID_VIDEO_HEIGHT=352
ID_VIDEO_FPS=23.976
ID_VIDEO_ASPECT=0.00
ID_AUDIO_CODEC=ffmp3
ID_AUDIO_FORMAT=85
ID_AUDIO_BITRATE=160000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
Process() start
VDec: vo config request - 640 x 352 (preferred csp: Planar YV12)
[PP] Using external postprocessing filter, max q = 6
vo_debug: query(Planar YV12) returned 0xC37 (i=0)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO Config (640x352->640x352,flags=0,'MPlayer',0x32315659)
REQ: flags=0x437 req=0x0
REQ: flags=0x437 req=0x0
VO: [DirectX] 640x352 => 640x352 Planar YV12
VO: Description: XBOX YUV/RGB/BGR renderer
VO: Author: Frodo
<vo_directx><INFO>config 640x352
*** [pp] Allocating mp_image_t, 640x352x12bpp YUV planar, 337920 bytes
(imgfmt: 32315659, planes: 1ee7508,1f2c108,1f1e508 strides: 640,320,320,
chroma: 320x176, shift: h:1,v:1)
*** [vo] Allocating mp_image_t, 640x352x12bpp YUV planar, 337920 bytes
(imgfmt: 32315659, planes: 1f3a4a0,1f7f0a0,1f714a0 strides: 640,320,320,
chroma: 320x176, shift: h:1,v:1)
*** [expand] Direct Rendering mp_image_t, 640x352x12bpp YUV planar, 337920
bytes
(imgfmt: 32315659, planes: 1f3a4a0,1f7f0a0,1f714a0 strides: 640,320,320,
chroma: 320x176, shift: h:1,v:1)
OSD chg: 3 V: no pb:-1
OSD chg: 2 V: no pb:-1
### A: 0.355 ( -0.010) V: 0.000 A-V:-0.0101 quality:6
*** [pp] Allocating mp_image_t, 640x352x12bpp YUV planar, 337920 bytes
(imgfmt: 32315659, planes: 1f8d438,1fd2038,1fc4438 strides: 640,320,320,
chroma: 320x176, shift: h:1,v:1)
XXX initial v_pts=0.042 a_pos=9216 (0.466)
### A: 1.437 ( 1.794) V: 1.793 A-V: 0.0004 quality:6
### A: 2.446 ( 2.787) V: 2.794 A-V:-0.0071 quality:6
### A: 3.461 ( 3.833) V: 3.837 A-V:-0.0045 quality:6
### A: 4.480 ( 4.816) V: 4.838 A-V:-0.0219 quality:6
### A: 5.510 ( 5.838) V: 5.839 A-V:-0.0010 quality:6
### A: 6.525 ( 6.854) V: 6.840 A-V: 0.0138 quality:6
### A: 7.529 ( 7.894) V: 7.883 A-V: 0.0109 quality:6
### A: 8.611 ( 8.967) V: 8.967 A-V:-0.0004 quality:6
### A: 9.620 ( 9.964) V: 9.968 A-V:-0.0038 quality:6
### A: 10.635 ( 11.016) V: 11.011 A-V: 0.0046 quality:6
### A: 11.646 ( 12.007) V: 12.012 A-V:-0.0050 quality:6
### A: 12.650 ( 13.010) V: 13.013 A-V:-0.0027 quality:6
### A: 13.606 ( 13.946) V: 13.972 A-V:-0.0266 quality:6
### A: 14.602 ( 14.963) V: 14.973 A-V:-0.0108 quality:6
### A: 15.570 ( 15.917) V: 15.933 A-V:-0.0159 quality:6
### A: 16.526 ( 16.864) V: 16.892 A-V:-0.0278 quality:6
### A: 17.522 ( 17.883) V: 17.893 A-V:-0.0103 quality:6
### A: 18.508 ( 18.895) V: 18.894 A-V: 0.0008 quality:6
### A: 19.485 ( 19.846) V: 19.853 A-V:-0.0070 quality:6
### A: 20.451 ( 20.794) V: 20.812 A-V:-0.0190 quality:6
### A: 21.452 ( 21.819) V: 21.813 A-V: 0.0055 quality:6
### A: 22.456 ( 22.792) V: 22.773 A-V: 0.0193 quality:6
### A: 23.476 ( 23.840) V: 23.815 A-V: 0.0245 quality:6
### A: 24.417 ( 24.745) V: 24.775 A-V:-0.0300 quality:6
### A: 25.427 ( 25.805) V: 25.817 A-V:-0.0124 quality:6
### A: 26.423 ( 26.782) V: 26.777 A-V: 0.0051 quality:6
### A: 27.458 ( 27.816) V: 27.778 A-V: 0.0382 quality:6
### A: 28.388 ( 28.746) V: 28.779 A-V:-0.0333 quality:6
### A: 29.468 ( 29.797) V: 29.780 A-V: 0.0177 quality:6
### A: 30.447 ( 30.810) V: 30.822 A-V:-0.0124 quality:6
### A: 31.456 ( 31.812) V: 31.823 A-V:-0.0115 quality:6
### A: 32.439 ( 32.768) V: 32.783 A-V:-0.0148 quality:6
### A: 33.430 ( 33.786) V: 33.784 A-V: 0.0018 quality:6
### A: 34.394 ( 34.768) V: 34.785 A-V:-0.0168 quality:6
### A: 35.423 ( 35.780) V: 35.786 A-V:-0.0057 quality:6
### A: 36.453 ( 36.767) V: 36.787 A-V:-0.0194 quality:6
### A: 37.444 ( 37.779) V: 37.788 A-V:-0.0084 quality:6
### A: 38.464 ( 38.801) V: 38.789 A-V: 0.0124 quality:6
### A: 39.483 ( 39.841) V: 39.831 A-V: 0.0092 quality:6
### A: 40.511 ( 40.840) V: 40.833 A-V: 0.0076 quality:6
### A: 41.507 ( 41.836) V: 41.833 A-V: 0.0021 quality:6
### A: 42.552 ( 42.898) V: 42.876 A-V: 0.0219 quality:6
### A: 43.561 ( 43.892) V: 43.877 A-V: 0.0152 quality:6
### A: 44.605 ( 44.954) V: 44.920 A-V: 0.0343 quality:6
### A: 45.624 ( 45.986) V: 45.963 A-V: 0.0232 quality:6
### A: 46.607 ( 46.954) V: 46.964 A-V:-0.0101 quality:6
### A: 47.663 ( 48.020) V: 48.006 A-V: 0.0139 quality:6
### A: 48.646 ( 49.032) V: 49.049 A-V:-0.0174 quality:6
### A: 49.711 ( 50.079) V: 50.050 A-V: 0.0285 quality:6
### A: 50.739 ( 51.064) V: 51.051 A-V: 0.0126 quality:6
### A: 51.737 ( 52.087) V: 52.094 A-V:-0.0070 quality:6
### A: 52.807 ( 53.166) V: 53.136 A-V: 0.0294 quality:6
### A: 53.831 ( 54.169) V: 54.137 A-V: 0.0319 quality:6
### A: 54.860 ( 55.202) V: 55.180 A-V: 0.0223 quality:6
### A: 55.889 ( 56.238) V: 56.223 A-V: 0.0147 quality:6
### A: 56.917 ( 57.287) V: 57.266 A-V: 0.0211 quality:6
### A: 57.952 ( 58.291) V: 58.267 A-V: 0.0248 quality:6
### A: 58.985 ( 59.340) V: 59.309 A-V: 0.0308 quality:6
### A: 60.013 ( 60.353) V: 60.352 A-V: 0.0015 quality:6
### A: 61.004 ( 61.366) V: 61.353 A-V: 0.0131 quality:6
### A: 61.997 ( 62.341) V: 62.354 A-V:-0.0129 quality:6
### A: 63.058 ( 63.422) V: 63.397 A-V: 0.0254 quality:6
### A: 64.027 ( 64.335) V: 64.356 A-V:-0.0206 quality:6
### A: 65.042 ( 65.383) V: 65.399 A-V:-0.0155 quality:6
### A: 66.056 ( 66.439) V: 66.441 A-V:-0.0022 quality:6
### A: 67.075 ( 67.435) V: 67.442 A-V:-0.0077 quality:6
### A: 68.090 ( 68.442) V: 68.443 A-V:-0.0017 quality:6
### A: 69.081 ( 69.436) V: 69.444 A-V:-0.0089 quality:6
### A: 70.087 ( 70.453) V: 70.445 A-V: 0.0079 quality:6
### A: 71.075 ( 71.433) V: 71.446 A-V:-0.0134 quality:6
### A: 72.086 ( 72.459) V: 72.447 A-V: 0.0117 quality:6
### A: 73.114 ( 73.436) V: 73.448 A-V:-0.0129 quality:6
### A: 74.134 ( 74.489) V: 74.491 A-V:-0.0022 quality:6
### A: 75.158 ( 75.526) V: 75.534 A-V:-0.0080 quality:6
### A: 76.167 ( 76.522) V: 76.535 A-V:-0.0129 quality:6
### A: 77.192 ( 77.522) V: 77.536 A-V:-0.0137 quality:6
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