ISDB-T TRP file content info

日本 ISDB-T (13 seg) 的 streamming file : *.trp。

由 property 來看：

• Video : Mpeg4 Video (H264) 320x172 , 14.99fps
• Audio : AAC 48000Hz sterro 37Kbps

可以用 K lite Codec Pack 新版來看。

* 最新的版本還可以看到：

General
Complete name                    : G:\log.trp
Format                           : MPEG-TS
Format profile                   : No PAT/PMT
File size                        : 17.8 MiB

Video
ID                               : 1024 (0x400)
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : Baseline@L1.2
Format settings, CABAC           : No
Format settings, ReFrames        : 1 frame
Width                            : 320 pixels
Height                           : 180 pixels
Display aspect ratio             : 16:9
Frame rate                       : 29.970 fps
Resolution                       : 8 bits
Colorimetry                      : 4:2:0
Scan type                        : Progressive

Audio
ID                               : 1280 (0x500)
Format                           : MPEG Audio
Video delay                      : -899ms

再詳細用 Play -- Filter --Audio Filte -- Proerties -- [IN]log.trp/Audio 看：

Filter : Audio Switcher - CLSID : {18C16B08-6497-420E-AD14-22D21C2CEAB7}

- Connected to:

CLSID: {0F40E1E5-4F79-4988-B1A9-CC98794E6B55}
Filter: ffdshow Audio Decoder
Pin: Out

- Connection media type:

Audio: PCM 48000Hz stereo 1536kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 48000
nAvgBytesPerSec: 192000
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 80 bb 00 00 00 ee 02 00 04 00 10 00 ....€.........
0010: 00 00                                           ..

用 一樣的 MPC MPEG Filter 來看
[IN] input:

Filter : MPC - Mpeg Splitter (Gabest) - CLSID : {DC257063-045F-4BE2-BD5B-E12279C464F0}

- Connected to:

CLSID: {E436EBB5-524F-11CE-9F53-0020AF0BA770}
Filter: G:\log.trp
Pin: Output

- Connection media type:

Unknown

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Stream {E436EB83-524F-11CE-9F53-0020AF0BA770}
subtype: MEDIASUBTYPE_MPEG2_TRANSPORT {E06D8023-DB46-11CF-B4D1-00805F6CBBEA}
formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 0

[OUT] Video

Filter : MPC - Mpeg Splitter (Gabest) - CLSID : {DC257063-045F-4BE2-BD5B-E12279C464F0}

- Connected to:

CLSID: {04FE9017-F873-410E-871E-AB91661A4EF7}
Filter: ffdshow Video Decoder
Pin: In

- Connection media type:

Video: MPEG4 Video (H264) 320x192 14.99fps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Video {73646976-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {31435641-0000-0010-8000-00AA00389B71}
formattype: FORMAT_MPEG2_VIDEO {E06D80E3-DB46-11CF-B4D1-00805F6CBBEA}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 159

VIDEOINFOHEADER:
rcSource: (0,0)-(0,0)
rcTarget: (0,0)-(0,0)
dwBitRate: 0
dwBitErrorRate: 0
AvgTimePerFrame: 667333

VIDEOINFOHEADER2:
dwInterlaceFlags: 0x00000000
dwCopyProtectFlags: 0x00000000
dwPictAspectRatioX: 320
dwPictAspectRatioY: 192
dwControlFlags: 0x00000000
dwReserved2: 0x00000000

MPEG2VIDEOINFO:
dwStartTimeCode: 0
cbSequenceHeader: 27
dwProfile: 0x00000042
dwLevel: 0x0000000c
dwFlags: 0x00000004

BITMAPINFOHEADER:
biSize: 40
biWidth: 320
biHeight: 192
biPlanes: 0
biBitCount: 0
biCompression: AVC1
biSizeImage: 0
biXPelsPerMeter: 0
biYPelsPerMeter: 0
biClrUsed: 0
biClrImportant: 0

pbFormat:
0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0020: 00 00 00 00 00 00 00 00 c5 2e 0a 00 00 00 00 00 ...............
0030: 00 00 00 00 00 00 00 00 40 01 00 00 c0 00 00 00 ........@......
0040: 00 00 00 00 00 00 00 00 28 00 00 00 40 01 00 00 ........(...@...
0050: c0 00 00 00 00 00 00 00 41 56 43 31 00 00 00 00 .......AVC1....
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0070: 00 00 00 00 1b 00 00 00 42 00 00 00 0c 00 00 00 ........B.......
0080: 04 00 00 00|00 13 67 42 e0 0c b6 81 41 9f 9e 10 ......gB.A.
0090: 00 00 3e 90 00 07 53 08 40 00 04 68 ce 3c 80    ..>..S.@..h<€  - Enumerated media type 0:  Set as the current media type  

---

以上的 demuxer 是用 Gabest 的 MPEG Splitter。
這個是 open source project, Wiki : Media Player Classic

相關的Link

• ISDB Wiki
• AAC Wiki - 內含 Japan 1seg
• TRP 是 h.264 stream 的專屬附檔名？