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author | wm4 <wm4@nowhere> | 2012-12-19 12:04:38 +0100 |
---|---|---|
committer | wm4 <wm4@nowhere> | 2013-01-13 20:04:11 +0100 |
commit | aa6ba6372c627bc602647d225bdfb076f93bd291 (patch) | |
tree | dd9a9840b123af5f48881d4d52b1697671018c02 /video/filter/vf_scale.c | |
parent | ab94c64ed2d8b90bd7b0c348e79c2d8b8d055ee6 (diff) | |
download | mpv-aa6ba6372c627bc602647d225bdfb076f93bd291.tar.bz2 mpv-aa6ba6372c627bc602647d225bdfb076f93bd291.tar.xz |
mp_image: change how palette is handled
According to DOCS/OUTDATED-tech/colorspaces.txt, the following formats
are supposed to be palettized:
IMGFMT_BGR8
IMGFMT_RGB8,
IMGFMT_BGR4_CHAR
IMGFMT_RGB4_CHAR
IMGFMT_BGR4
IMGFMT_RGB4
Of these, only BGR8 and RGB8 are actually treated as palettized in some
way. ffmpeg has only one palettized format (AV_PIX_FMT_PAL8), and
IMGFMT_BGR8 was inconsistently mapped to packed non-palettized RGB
formats too (AV_PIX_FMT_BGR8). Moreover, vf_scale.c contained messy
hacks to generate a palette when AV_PIX_FMT_BGR8 is output. (libswscale
does not support AV_PIX_FMT_PAL8 output in the first place.)
Get rid of all of this, and introduce IMGFMT_PAL8, which directly maps
to AV_PIX_FMT_PAL8. Remove the palette creation code from vf_scale.c.
IMGFMT_BGR8 maps to AV_PIX_FMT_RGB8 (don't ask me why it's swapped),
without any palette use. Enabling it in vo_x11 or using it as vf_scale
input seems to give correct results.
Diffstat (limited to 'video/filter/vf_scale.c')
-rw-r--r-- | video/filter/vf_scale.c | 53 |
1 files changed, 1 insertions, 52 deletions
diff --git a/video/filter/vf_scale.c b/video/filter/vf_scale.c index 30a185390e..a10825ee56 100644 --- a/video/filter/vf_scale.c +++ b/video/filter/vf_scale.c @@ -47,7 +47,6 @@ static struct vf_priv_s { double param[2]; unsigned int fmt; struct SwsContext *ctx; - unsigned char* palette; int interlaced; int noup; int accurate_rnd; @@ -57,9 +56,6 @@ static struct vf_priv_s { -1,-1, 0, {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT}, - 0, - NULL, - NULL }; static int mp_sws_set_colorspace(struct SwsContext *sws, @@ -162,6 +158,7 @@ static int preferred_conversions[][2] = { {IMGFMT_GBRP, IMGFMT_RGB24}, {IMGFMT_GBRP, IMGFMT_BGR32}, {IMGFMT_GBRP, IMGFMT_RGB32}, + {IMGFMT_PAL8, IMGFMT_BGR32}, {0, 0} }; @@ -210,7 +207,6 @@ static int config(struct vf_instance *vf, unsigned int best=find_best_out(vf, outfmt); int int_sws_flags=0; int round_w=0, round_h=0; - int i; SwsFilter *srcFilter, *dstFilter; enum PixelFormat dfmt, sfmt; @@ -221,7 +217,6 @@ static int config(struct vf_instance *vf, return 0; } sfmt = imgfmt2pixfmt(outfmt); - if (outfmt == IMGFMT_RGB8 || outfmt == IMGFMT_BGR8) sfmt = PIX_FMT_PAL8; dfmt = imgfmt2pixfmt(best); vf->next->query_format(vf->next,best); @@ -316,51 +311,6 @@ static int config(struct vf_instance *vf, } vf->priv->fmt=best; - free(vf->priv->palette); - vf->priv->palette=NULL; - switch(best){ - case IMGFMT_RGB8: { - /* set 332 palette for 8 bpp */ - vf->priv->palette=malloc(4*256); - for(i=0; i<256; i++){ - vf->priv->palette[4*i+0]=4*(i>>6)*21; - vf->priv->palette[4*i+1]=4*((i>>3)&7)*9; - vf->priv->palette[4*i+2]=4*((i&7)&7)*9; - vf->priv->palette[4*i+3]=0; - } - break; } - case IMGFMT_BGR8: { - /* set 332 palette for 8 bpp */ - vf->priv->palette=malloc(4*256); - for(i=0; i<256; i++){ - vf->priv->palette[4*i+0]=4*(i&3)*21; - vf->priv->palette[4*i+1]=4*((i>>2)&7)*9; - vf->priv->palette[4*i+2]=4*((i>>5)&7)*9; - vf->priv->palette[4*i+3]=0; - } - break; } - case IMGFMT_BGR4: - case IMGFMT_BG4B: { - vf->priv->palette=malloc(4*16); - for(i=0; i<16; i++){ - vf->priv->palette[4*i+0]=4*(i&1)*63; - vf->priv->palette[4*i+1]=4*((i>>1)&3)*21; - vf->priv->palette[4*i+2]=4*((i>>3)&1)*63; - vf->priv->palette[4*i+3]=0; - } - break; } - case IMGFMT_RGB4: - case IMGFMT_RG4B: { - vf->priv->palette=malloc(4*16); - for(i=0; i<16; i++){ - vf->priv->palette[4*i+0]=4*(i>>3)*63; - vf->priv->palette[4*i+1]=4*((i>>1)&3)*21; - vf->priv->palette[4*i+2]=4*((i&1)&1)*63; - vf->priv->palette[4*i+3]=0; - } - break; } - } - if (!opts->screen_size_x && !opts->screen_size_y && !(opts->screen_size_xy >= 0.001)) { // Compute new d_width and d_height, preserving aspect @@ -566,7 +516,6 @@ static int query_format(struct vf_instance *vf, unsigned int fmt){ static void uninit(struct vf_instance *vf){ if(vf->priv->ctx) sws_freeContext(vf->priv->ctx); - free(vf->priv->palette); free(vf->priv); } |