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ffprobe: add pixel format chroma sub-sampling output

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Adds output of chroma sub-sampling information to
ffprobe -show_pixel_formats option.

Note: This patch just prints the "raw" log2_charoma_w/h values instead
of the previously suggested mapping into a chroma sub-sampling pattern
string like "4:2:2".

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Tobias Rapp 2014-09-15 17:16:03 +02:00 committed by Michael Niedermayer
parent 7d327d6242
commit 1acc9189b4
2 changed files with 9 additions and 0 deletions
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2
doc/ffprobe.xsd
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@ -309,6 +309,8 @@
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="nb_components" type="xsd:int" use="required"/>
<xsd:attribute name="log2_chroma_w" type="xsd:int"/>
<xsd:attribute name="log2_chroma_h" type="xsd:int"/>
<xsd:attribute name="bits_per_pixel" type="xsd:int"/>
</xsd:complexType>

7
ffprobe.c
View File

@ -2586,6 +2586,13 @@ static void ffprobe_show_pixel_formats(WriterContext *w)
writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT);
print_str("name", pixdesc->name);
print_int("nb_components", pixdesc->nb_components);
if ((pixdesc->nb_components >= 3) && !(pixdesc->flags & AV_PIX_FMT_FLAG_RGB)) {
print_int ("log2_chroma_w", pixdesc->log2_chroma_w);
print_int ("log2_chroma_h", pixdesc->log2_chroma_h);
} else {
print_str_opt("log2_chroma_w", "N/A");
print_str_opt("log2_chroma_h", "N/A");
}
n = av_get_bits_per_pixel(pixdesc);
if (n) print_int ("bits_per_pixel", n);
else print_str_opt("bits_per_pixel", "N/A");