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Code Issues Releases Activity

tiffenc: Simplify pixel format setup using AVPixFmtDescriptor.

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This commit is contained in:
Alex Converse 2012-09-19 11:10:26 -07:00
parent 5e3f9979fa
commit 9bc055e358
1 changed files with 17 additions and 23 deletions
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40
libavcodec/tiffenc.c
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@ -27,6 +27,7 @@
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "config.h"
@ -219,6 +220,7 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
int is_yuv = 0;
uint8_t *yuv_line = NULL;
int shift_h, shift_v;
const AVPixFmtDescriptor* pfd;
s->avctx = avctx;
@ -232,41 +234,35 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
s->subsampling[0] = 1;
s->subsampling[1] = 1;
s->bpp_tab_size = 0;
switch (avctx->pix_fmt) {
case PIX_FMT_RGB48LE:
s->bpp = 48;
s->photometric_interpretation = 2;
s->bpp_tab_size = 3;
for (i = 0; i < s->bpp_tab_size; i++) {
bpp_tab[i] = 16;
}
break;
case PIX_FMT_GRAY16LE:
s->bpp = 16;
s->photometric_interpretation = 1;
s->bpp_tab_size = 1;
bpp_tab[0] = 16;
break;
case PIX_FMT_RGB24:
s->bpp = 24;
s->photometric_interpretation = 2;
break;
case PIX_FMT_GRAY8:
s->bpp = 8;
s->photometric_interpretation = 1;
break;
case PIX_FMT_PAL8:
s->bpp = 8;
s->photometric_interpretation = 3;
pfd = &av_pix_fmt_descriptors[avctx->pix_fmt];
s->bpp = av_get_bits_per_pixel(pfd);
if (pfd->flags & PIX_FMT_PAL) {
s->photometric_interpretation = 3;
} else if (pfd->flags & PIX_FMT_RGB) {
s->photometric_interpretation = 2;
} else {
s->photometric_interpretation = 1;
}
s->bpp_tab_size = pfd->nb_components;
for (i = 0; i < s->bpp_tab_size; i++) {
bpp_tab[i] = s->bpp / s->bpp_tab_size;
}
break;
case PIX_FMT_MONOBLACK:
s->bpp = 1;
s->photometric_interpretation = 1;
s->bpp_tab_size = 0;
break;
case PIX_FMT_MONOWHITE:
s->bpp = 1;
s->photometric_interpretation = 0;
s->bpp_tab_size = 0;
break;
case PIX_FMT_YUV420P:
case PIX_FMT_YUV422P:
@ -287,8 +283,6 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
"This colors format is not supported\n");
return -1;
}
if (!s->bpp_tab_size)
s->bpp_tab_size = (s->bpp >> 3);
if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE || s->compr == TIFF_LZW)
//best choose for DEFLATE