[FFmpeg-user] multiple input video streams

[Wes Morgan]

I'm trying to transcode an m2ts file that contains three video streams,
and I don't seem to be able to tell ffmpeg to use the first stream:

/usr/local/bin/ffmpeg -i Frost-Nixon.m2ts -y -sn -sws_flags spline+sse2
-vtag X264 -threads 6 -map 0.0 -refs 5 -an -vcodec libx264 -passlogfile
Frost-Nixon.log -b 8771k -f matroska -vstats -vstats_file
Frost-Nixon-1.vstats -bf 3 -b_strategy 1 -coder 1 -cmp +chroma -directpred
1 -flags +loop -g 250 -keyint_min 25 -level 41 -me_method dia -me_range 16
-sc_threshold 40 -deblockalpha -1 -deblockbeta -1 -partitions
-parti8x8-parti4x4-partp8x8-partp4x4-partb8x8 -i_qfactor 0.71 -qcomp 0.6
-subq 2 -qdiff 4 -qmax 51 -qmin 10 -trellis 0 -wpredp 2 -aq_mode 1
-rc_lookahead 40 -maxrate 40000k -bufsize 30000k -flags2
+wpred-mixed_refs-dct8x8+bpyramid+psy+ssim+mbtree -pass 1 /dev/null

Input #0, mpegts, from 'Frost-Nixon.m2ts':
  Duration: 02:01:51.50, start: 11.650667, bitrate: 34626 kb/s
  Program 1
    Stream #0.0[0x1011]: Video: vc1 (Advanced), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 90k tbn, 23.98 tbc
    Stream #0.1[0x1100]: Audio: dca (DTS-HD MA), 48000 Hz, 5.1, s16, 1536 kb/s
    Stream #0.2[0x1101]: Audio: dca (DTS), 48000 Hz, 5.1, s16, 768 kb/s
    Stream #0.3[0x1102]: Audio: dca (DTS), 48000 Hz, 5.1, s16, 768 kb/s
    Stream #0.4[0x1103]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
    Stream #0.5[0x1200]: Subtitle: pgssub
    Stream #0.6[0x1201]: Subtitle: pgssub
    Stream #0.7[0x1202]: Subtitle: pgssub
    Stream #0.8[0x1203]: Subtitle: pgssub
    Stream #0.9[0x1204]: Subtitle: pgssub
    Stream #0.10[0x1a00]: Data: [162][0][0][0] / 0x00A2
    Stream #0.11[0x1a01]: Data: [162][0][0][0] / 0x00A2
    Stream #0.12[0x1b00]: Video: vc1 (Advanced), yuv420p, 720x480 [PAR 40:33 DAR 20:11], 23.98 fps, 23.98 tbr, 90k tbn, 23.98 tbc
    Stream #0.13[0x1b01]: Video: vc1 (Advanced), yuv420p, 720x480 [PAR 40:33 DAR 20:11], 23.98 fps, 23.98 tbr, 90k tbn, 23.98 tbc
Output #0, matroska, to '/dev/null':
  Metadata:
    encoder         : Lavf52.103.0
    Stream #0.0: Video: libx264, yuv420p, 720x480 [PAR 40:33 DAR 20:11], q=10-51, pass 1, 8771 kb/s, 1k tbn, 23.98 tbc
Stream mapping:
  Stream #0.0 -> #0.0

Note that it *claims* 0.0 -> 0.0, but the video is listed as 720x480.
Anyone know what I'm doing wrong here?


Thanks!