id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
591,svq1: ffmpeg crashes with enabled lowres,ami_stuff,,"seems to be related to:

{{{
diff --git a/libavcodec/utils.c b/libavcodec/utils.c

index 95fb65a..0ac81ba 100644 (file)


--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -601,10 +601,9 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVD
     }
 
     if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
-        av_log(avctx, AV_LOG_ERROR, ""The maximum value for lowres supported by the decoder is %d\n"",
+        av_log(avctx, AV_LOG_WARNING, ""The maximum value for lowres supported by the decoder is %d\n"",
                avctx->codec->max_lowres);
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
+        avctx->lowres = avctx->codec->max_lowres;
     }
     if (avctx->codec->encode) {
         int i;
}}}

{{{
C:\>ffmpeg -lowres 1 -i C:\QT-Sorenson.mov -vcodec msmpeg4v2 out.avi
ffmpeg version N-34031-ge403a97, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 25 2011 15:06:47 with gcc 4.6.1
  configuration: --enable-gpl --enable-version3 --enable-runtime-cpudetect --ena
ble-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --ena
ble-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --en
able-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib

  libavutil    51. 22. 0 / 51. 22. 0
  libavcodec   53. 23. 0 / 53. 23. 0
  libavformat  53. 17. 0 / 53. 17. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 45. 0 /  2. 45. 0
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0
[adpcm_ima_qt @ 020990C0] The maximum value for lowres supported by the decoder
is 0
[svq1 @ 0209A0A0] The maximum value for lowres supported by the decoder is 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 02092320] max_analyze_duration 5000000 reached at 500
3900

Seems stream 1 codec frame rate differs from container frame rate: 1000000.00 (1
000000/1) -> 24.00 (1000000/41667)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\QT-Sorenson.mov':
  Metadata:
    creation_time   : 2002-10-02 22:42:43
  Duration: 00:00:05.95, start: 0.000000, bitrate: 785 kb/s
    Stream #0:0(eng): Audio: adpcm_ima_qt (ima4 / 0x34616D69), 11025 Hz, 2 chann
els, s16, 88 kb/s
    Metadata:
      creation_time   : 2002-10-02 22:42:43
    Stream #0:1(eng): Video: svq1 (SVQ1 / 0x31515653), yuv410p, 96x64, 688 kb/s,
 24 fps, 24 tbr, 1000k tbn, 1000k tbc
    Metadata:
      creation_time   : 2002-10-02 22:42:43
Incompatible pixel format 'yuv410p' for codec 'msmpeg4v2', auto-selecting format
 'yuv420p'
[buffer @ 020A8F20] w:96 h:64 pixfmt:yuv410p tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 020A9320] auto-inserting filter 'auto-inserted scale 0' between th
e filter 'src' and the filter 'out'
[scale @ 020A9720] w:96 h:64 fmt:yuv410p -> w:96 h:64 fmt:yuv420p flags:0x4
[adpcm_ima_qt @ 020990C0] The maximum value for lowres supported by the decoder
is 0
[svq1 @ 0209A0A0] The maximum value for lowres supported by the decoder is 0
Output #0, avi, to 'out.avi':
  Metadata:
    creation_time   : 2002-10-02 22:42:43
    ISFT            : Lavf53.17.0
    Stream #0:0(eng): Video: msmpeg4v2 (MP42 / 0x3234504D), yuv420p, 96x64, q=2-
31, 200 kb/s, 24 tbn, 24 tbc
    Metadata:
      creation_time   : 2002-10-02 22:42:43
    Stream #0:1(eng): Audio: mp3 (U[0][0][0] / 0x0055), 11025 Hz, 2 channels, s1
6, 128 kb/s
    Metadata:
      creation_time   : 2002-10-02 22:42:43
Stream mapping:
  Stream #0.1 -> #0.0 (svq1 -> msmpeg4v2)
  Stream #0.0 -> #0.1 (adpcm_ima_qt -> libmp3lame)
Press [q] to stop, [?] for help

C:\>
}}}",defect,closed,normal,avcodec,unspecified,fixed,regression,,,,1,1