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Paletted cvid support 

Originally committed as revision 3263 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Roberto Togni 2004-06-27 14:46:02 +00:00
parent d99fbbf4d7
commit dab1c4c612
1 changed files with 17 additions and 12 deletions
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29
libavcodec/cinepak.c
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@ -35,7 +35,6 @@
#include "avcodec.h"
#include "dsputil.h"
#define PALETTE_COUNT 256
typedef struct {
uint8_t y0, y1, y2, y3;
@ -63,7 +62,6 @@ typedef struct CinepakContext {
int width, height;
unsigned char palette[PALETTE_COUNT * 4];
int palette_video;
cvid_strip_t strips[MAX_STRIPS];
@ -361,22 +359,20 @@ static int cinepak_decode (CinepakContext *s)
static int cinepak_decode_init(AVCodecContext *avctx)
{
CinepakContext *s = (CinepakContext *)avctx->priv_data;
/*
int i;
unsigned char r, g, b;
unsigned char *raw_palette;
unsigned int *palette32;
*/
s->avctx = avctx;
s->width = (avctx->width + 3) & ~3;
s->height = (avctx->height + 3) & ~3;
// check for paletted data
s->palette_video = 0;
// check for paletted data
if (avctx->palctrl == NULL) {
s->palette_video = 0;
avctx->pix_fmt = PIX_FMT_YUV420P;
} else {
s->palette_video = 1;
avctx->pix_fmt = PIX_FMT_PAL8;
}
avctx->pix_fmt = PIX_FMT_YUV420P;
avctx->has_b_frames = 0;
dsputil_init(&s->dsp, avctx);
@ -404,6 +400,15 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
cinepak_decode(s);
if (s->palette_video) {
memcpy (s->frame.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
if (avctx->palctrl->palette_changed) {
s->frame.palette_has_changed = 1;
avctx->palctrl->palette_changed = 0;
} else
s->frame.palette_has_changed = 0;
}
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->frame;