[WSC4]

Just need to know if this program does "no" re-encoding of the video if you set an option.

In the Transcode window, you can set "Do Not Transcode". Just wondering if it means do not re-encode?

In the log file it states this:

--------------------------------------------------
Detected frame reference count: 2 (max:4).
Detected video: ID#1:V_MPEG4/ISO/AVC 1920x1080, fps=25.000, ref=2

Decoding H264 stream (track 1): Profile: High@4.0 Resolution: 1920:1080p Frame rate: 25
H.264 stream does not contain fps field. Muxing fps=25
H264 bitstream changed: insert nal unit delimiters
H264 bitstream changed: insert pict timing and buffering period SEI units
H264 bitstream changed: insert SPS/PPS units
---------------------------------------------------

In the video, there is a bitstream change inserting nal unit, pict timing and SPS/PPS units. Is it re-encoding?

V_MPEG4/ISO/AVC, "C:\Documents and Settings\Administrator\My Documents\My Videos\AVCHD_Tests\Nutbush_1920_new.mkv", insertSEI, contSPS, track=1, lang=eng, fps=25.000

I notice a new video created with a Matroska file extension, and I guess it's a temp file as it does not exist.

The original video from MediaInfo:

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 2 frames
Format settings, GOP : M=3, N=13
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 3 min 10 s
Bit rate : 16.1 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.311
Stream size : 366 MiB (98%)

MediaInfo from the BDMV folder, 00000.m2ts video created:

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 2 frames
Format settings, GOP : M=3, N=13
Codec ID : 27
Duration : 3 min 10 s
Bit rate mode : Variable
Bit rate : 16.2 Mb/s
Maximum bit rate : 40.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Stream size : 369 MiB (94%)

The bit rate mode is now variable, changed to 16.2 Mb\s up to a maximum of 40 Mb\s. Frame rate changed from constant to variable. Has it changed to 50 fps? Stream size has changed from 366 MiB to 369 MiB.

Does all this mean the video has been re-encoded?