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author | Niklas Haas <git@nand.wakku.to> | 2014-04-02 00:40:36 +0200 |
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committer | wm4 <wm4@nowhere> | 2014-06-22 19:05:43 +0200 |
commit | 664f8e9832e7ee9835816621faf4b57ffbcc8628 (patch) | |
tree | 5a4183678358bdfa04a3a88ec94350b6a430323a /video/csputils.c | |
parent | fbd35caef830a1d0a25f1ee6e3b5d71453c98a59 (diff) | |
download | mpv-664f8e9832e7ee9835816621faf4b57ffbcc8628.tar.bz2 mpv-664f8e9832e7ee9835816621faf4b57ffbcc8628.tar.xz |
video: Include better heuristics for guessing primaries
These consult the vertical resolution, matching against 576 for
PAL and 480/486 for NTSC. The documentation has also been updated.
Signed-off-by: wm4 <wm4@nowhere>
Diffstat (limited to 'video/csputils.c')
-rw-r--r-- | video/csputils.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/video/csputils.c b/video/csputils.c index 202585187a..c462c43c34 100644 --- a/video/csputils.c +++ b/video/csputils.c @@ -160,6 +160,25 @@ enum mp_csp mp_csp_guess_colorspace(int width, int height) return width >= 1280 || height > 576 ? MP_CSP_BT_709 : MP_CSP_BT_601; } +enum mp_csp_prim mp_csp_guess_primaries(int width, int height) +{ + // HD content + if (width >= 1280 || height > 576) + return MP_CSP_PRIM_BT_709; + + switch (height) { + case 576: // Typical PAL content, including anamorphic/squared + return MP_CSP_PRIM_BT_601_625; + + case 480: // Typical NTSC content, including squared + case 486: // NTSC Pro or anamorphic NTSC + return MP_CSP_PRIM_BT_601_525; + + default: // No good metric, just pick BT.709 to minimize damage + return MP_CSP_PRIM_BT_709; + } +} + enum mp_chroma_location avchroma_location_to_mp(int avloc) { switch (avloc) { |