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DV ntsc support, 411P colorspace added

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Originally committed as revision 1010 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Arpi 2002-10-07 21:28:33 +00:00
parent acd2e05c47
commit e9feea594a
2 changed files with 12 additions and 11 deletions
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3
libavcodec/avcodec.h
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@ -64,7 +64,8 @@ enum PixelFormat {
PIX_FMT_YUV444P,
PIX_FMT_RGBA32,
PIX_FMT_BGRA32,
PIX_FMT_YUV410P
PIX_FMT_YUV410P,
PIX_FMT_YUV411P
};
/* currently unused, may be used if 24/32 bits samples ever supported */

20
libavcodec/dv.c
View File

@ -521,6 +521,14 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
nb_dif_segs = 10;
}
/* XXX: is it correct to assume that 420 is always used in PAL
mode ? */
s->sampling_411 = !dsf;
if (s->sampling_411)
mb_pos_ptr = dv_place_411;
else
mb_pos_ptr = dv_place_420;
/* (re)alloc picture if needed */
if (s->width != width || s->height != height) {
for(i=0;i<3;i++)
@ -530,7 +538,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
s->linesize[i] = width;
if (i >= 1) {
size >>= 2;
s->linesize[i] >>= 1;
s->linesize[i] >>= s->sampling_411 ? 2 : 1;
}
s->current_picture[i] = av_malloc(size);
if (!s->current_picture[i])
@ -540,14 +548,6 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
s->height = height;
}
/* XXX: is it correct to assume that 420 is always used in PAL
mode ? */
s->sampling_411 = !dsf;
if (s->sampling_411)
mb_pos_ptr = dv_place_411;
else
mb_pos_ptr = dv_place_420;
/* for each DIF segment */
buf_ptr = buf;
for (ds = 0; ds < nb_dif_segs; ds++) {
@ -568,7 +568,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
avctx->width = width;
avctx->height = height;
if (s->sampling_411)
avctx->pix_fmt = PIX_FMT_YUV420P; /* XXX: incorrect, add PIX_FMT_YUV411P */
avctx->pix_fmt = PIX_FMT_YUV411P;
else
avctx->pix_fmt = PIX_FMT_YUV420P;
if (dsf)