[rtmpdump] Discrepancies Between Dumped Video And Source Video

[Nickolaus Padgett]

On Wed, Jul 21, 2010 at 9:41 PM, Howard Chu <hyc at highlandsun.com> wrote:
>> I looked at the original source file and there are only two streams;
>> one audio and one video.  What other reasons would explain the drastic
>> difference in file size?  You can download the original source video
>> from http://static.playonsports.com.s3.amazonaws.com/example_expected.mp4.
>
> You are quite mistaken. There are 6 streams in that file.
>
> ffprobe example_expected.mp4
> FFprobe version SVN-r24034, Copyright (c) 2007-2010 the FFmpeg developers
>  built on Jul  6 2010 11:27:54 with gcc 4.4.3
>  configuration: --enable-librtmp --extra-libs='-lrtmp -lssl -lcrypto'
> --enable-libx264 --enable-libfaac --enable-gpl --enable-nonfree
> --enable-pthreads --enable-libxvid --enable-libmp3lame --disable-encoder=aac
>  libavutil     50.20. 0 / 50.20. 0
>  libavcodec    52.79. 1 / 52.79. 1
>  libavformat   52.73. 0 / 52.73. 0
>  libavdevice   52. 2. 0 / 52. 2. 0
>  libavfilter    1.20. 1 /  1.20. 1
>  libswscale     0.11. 0 /  0.11. 0
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1d230a0] Could not find codec parameters (Data:
> rtp  / 0x20707472, 67 kb/s)
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1d230a0] Could not find codec parameters (Data:
> rtp  / 0x20707472, 440 kb/s)
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1d230a0] Could not find codec parameters (Data:
> mp4s / 0x7334706D, 0 kb/s)
>    Last message repeated 1 times
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'example_expected.mp4':
>  Metadata:
>    major_brand     : mp42
>    minor_version   : 1
>    compatible_brands: isommp41avc1
>  Duration: 00:09:59.39, start: 0.000000, bitrate: 128 kb/s
>    Stream #0.0(eng): Data: rtp  / 0x20707472, 67 kb/s
>    Stream #0.1(eng): Data: rtp  / 0x20707472, 440 kb/s
>    Stream #0.2(eng): Video: h264, yuv420p, 480x360 [PAR 1:1 DAR 4:3], 411
> kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 59.94 tbc
>    Stream #0.3(eng): Audio: aac, 44100 Hz, stereo, s16, 64 kb/s
>    Stream #0.4(eng): Data: mp4s / 0x7334706D, 0 kb/s
>    Stream #0.5(eng): Data: mp4s / 0x7334706D, 0 kb/s

Can RTMPdump be configured or modified to record these additional streams?