[FFmpeg-user] parse mkv file wrong problem

[Steven Liu]

The error message is

[buffer @ 0x22db580] Unable to parse option value "-1" as pixel format
Error opening filters!


2012/10/16 Steven Liu <lingjiujianke at gmail.com>:
> Hi Roger Pack
>
>
>            perhaps i have used error parameter?
>
>            ffmpeg -i Hotcha.mkv -strict experimental -acodec aac
> -vcodec libx264 -pix_fmt yuv420p -debug_ts -b:v 2000k   -b:a 192k -ar
> 44100 -preset ultrafast -vprofile main -vlevel 3.1 -map 0 -f segment
> -segment_time 10 -segment_format mpegts -segment_list a.m3u8
> -segment_list_flags live -async 1 -bsf:v h264_mp4toannexb -v debug
> -window_size hd720 test-%d.ts
>
>
>
> Thanks
>
>
>
> 2012/10/15 Steven Liu <lingjiujianke at gmail.com>:
>> Hi all,
>>
>>       When i transcode the mkv file like this:
>>        http://blog.fs-linux.org/Hotcha.mkv
>>       It give the message bellow:
>>
>>       [matroska,webm @ 0x3207240] Format matroska,webm probed with
>> size=2048 and score=100
>> st:0 removing common factor 500000 from timebase
>> st:1 removing common factor 500000 from timebase
>> st:2 removing common factor 500000 from timebase
>> st:3 removing common factor 500000 from timebase
>> [matroska,webm @ 0x3207240] File position before
>> avformat_find_stream_info() is 5965
>> [matroska,webm @ 0x3207240] max_analyze_duration 5000000 reached at 5000000
>> [matroska,webm @ 0x3207240] Could not find codec parameters for stream
>> 2 (Video: h264 (H264 / 0x34363248), 1920x1080, 1/4000): unspecified
>> pixel format
>> Consider increasing the value for the 'analyzeduration' and 'probesize' options
>> [matroska,webm @ 0x3207240] File position after
>> avformat_find_stream_info() is 1981448
>> Input #0, matroska,webm, from 'Hotcha.mkv':
>>   Duration: 00:04:05.89, start: 0.000000, bitrate: 5621 kb/s
>>     Stream #0:0(eng), 125, 1/2000: Video: h264 (High) (H264 /
>> 0x34363248), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1/50, 25 fps, 25
>> tbr, 2k tbn, 50 tbc (default)
>>     Metadata:
>>       BPS             : 5513740
>>       BITSPS          : 5513740
>>       FPS             : 24.9981
>>     Stream #0:1, 218, 1/2000: Audio: aac, 44100 Hz, stereo, s16 (default)
>>     Metadata:
>>       FPS             : 43.0665
>>       BPS             : 103356
>>       BITSPS          : 103356
>>     Stream #0:2(eng), 0, 1/2000: Video: h264 (H264 / 0x34363248),
>> 1920x1080, 1/4000, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2k tbn, 4k tbc
>> (default)
>>     Metadata:
>>       BPS             : 5513740
>>       BITSPS          : 5513740
>>       FPS             : 24.9981
>>     Stream #0:3, 0, 1/2000: Audio: aac, 44100 Hz, stereo, s16 (default)
>>     Metadata:
>>       FPS             : 43.0665
>>       BPS             : 103356
>>       BITSPS          : 103356
>> [graph 0 input from stream 0:0 @ 0x3351d80]Steven
>> Print==args=|video_size=1920x1080:pix_fmt=0:time_base=1/2000:pixel_aspect=1/1:sws_param=flags=2:frame_rate=25/1|
>> [buffer @ 0x3326d40] Setting entry with key 'video_size' to value '1920x1080'
>> [buffer @ 0x3326d40] Setting entry with key 'pix_fmt' to value '0'
>> [buffer @ 0x3326d40] Setting entry with key 'time_base' to value '1/2000'
>> [buffer @ 0x3326d40] Setting entry with key 'pixel_aspect' to value '1/1'
>> [buffer @ 0x3326d40] Setting entry with key 'sws_param' to value 'flags=2'
>> [buffer @ 0x3326d40] Setting entry with key 'frame_rate' to value '25/1'
>> [graph 0 input from stream 0:0 @ 0x3351d80] w:1920 h:1080
>> pixfmt:yuv420p tb:1/2000 fr:25/1 sar:1/1 sws_param:flags=2
>> [abuffer @ 0x3313c60] Setting entry with key 'time_base' to value '1/44100'
>> [abuffer @ 0x3313c60] Setting entry with key 'sample_rate' to value '44100'
>> [abuffer @ 0x3313c60] Setting entry with key 'sample_fmt' to value 's16'
>> [abuffer @ 0x3313c60] Setting entry with key 'channel_layout' to value '0x3'
>> [graph 1 input from stream 0:1 @ 0x32c18e0] tb:1/44100 samplefmt:s16
>> samplerate:44100 chlayout:0x3
>> -async is forwarded to lavfi similarly to -af
>> aresample=min_comp=0.001:min_hard_comp=0.100000.
>> [aformat @ 0x33262c0] Setting entry with key 'sample_fmts' to value 'fltp'
>> [aformat @ 0x33262c0] Setting entry with key 'sample_rates' to value '44100'
>> [graph 1 aresample for input stream 0:1 @ 0x3308ba0] chl:stereo
>> fmt:s16 r:44100Hz -> chl:stereo fmt:fltp r:44100Hz
>> [graph 2 input from stream 0:2 @ 0x3313be0] Steven Print
>> ==args=|video_size=1920x1080:pix_fmt=-1:time_base=1/2000:pixel_aspect=1/1:sws_param=flags=2:frame_rate=25/1|
>> [buffer @ 0x3312580] Setting entry with key 'video_size' to value '1920x1080'
>> [buffer @ 0x3312580] Setting entry with key 'pix_fmt' to value '-1'
>> [buffer @ 0x3312580] Unable to parse option value "-1" as pixel format
>>
>>
>>
>> Perhaps the error was at demux the mkv file,
>>
>> Michael,
>>
>>        Is this a BUG?
>>
>>
>>
>> Best regards