Changes between Version 6 and Version 7 of Encode/FFV1

Timestamp:

Sep 13, 2015, 6:08:33 PM (11 years ago)

Author:

Peter B.

Comment:

Added info about how to read parameters from existing file using ffprobe

Encode/FFV1

@@ -74 +74 @@
             <output_video>
         }}}
+
+
+=== Read from existing file ===
+In order to check which parameters an FFV1 video was encoded with, you can use the following command:
+{{{
+ffprobe -i <input_video> -debug 1
+}}}
+
+The output might look as follows:
+
+`[ffv1 @ 0x22444e0] global: ver:3.4, coder:0, colorspace: 0 bpr:10 chroma:1(1:0), alpha:0 slices:3x2 qtabs:2 ec:1 intra:0 CRC:0x613FED4D`
+
+That line translates to this:
+||= Name     =||= Label        =||= FFmpeg argument =||= value           =||= Comment                                        =||
+|| ver        || Version        || `-level`          || major version 3, minor version 4 || minor-version is encoder internal and read only. ||
+|| coder      || Coder          || `-coder`          || 0       || 0=Golomb Rice, 1=Range Coder                   ||
+|| colorspace || Color space    ||                   || 0       || 0=YCbCr ("YUV"), 1=JPEG2000_RCT ("RGB")        ||
+|| bpr        || Bits per sample || `-pix_fmt`       || 10 bits || For example with "yuv422p10le"                 ||
+|| slices     || Slice count    || `-slices`         || 3x2 = 6 || Shows the layout of slices as "width x height" ||
+|| ec         || Error correction || `-slicecrc`     || 1       || 0=OFF, 1=ON                                    ||
+|| intra      || Intra-frame only || `-g`            || 1       || 0=GOP greater than 1, 1=GOP is 1               ||