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ffmpeg.wasm-core
Commit 6833fe43 authored by Paul B Mahol's avatar Paul B Mahol Committed by Michael Niedermayer
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ffv1: PIX_FMT_GRAY16 support 

Signed-off-by: 's avatarPaul B Mahol <onemda@gmail.com>
Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent d4385299
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Showing with 19 additions and 9 deletions
libavcodec/ffv1.c
View file @ 6833fe43
......@@ -165,6 +165,7 @@ typedef struct FFV1Context{
int version;
int width, height;
int chroma_h_shift, chroma_v_shift;
int chroma_planes;
int transparency;
int flags;
int picture_number;
......@@ -640,7 +641,7 @@ static void write_header(FFV1Context *f){
put_symbol(c, state, f->colorspace, 0); //YUV cs type
if(f->version>0)
put_symbol(c, state, f->avctx->bits_per_raw_sample, 0);
put_rac(c, state, 1); //chroma planes
put_rac(c, state, f->chroma_planes);
put_symbol(c, state, f->chroma_h_shift, 0);
put_symbol(c, state, f->chroma_v_shift, 0);
put_rac(c, state, f->transparency);
......@@ -782,7 +783,7 @@ static int write_extra_header(FFV1Context *f){
}
put_symbol(c, state, f->colorspace, 0); //YUV cs type
put_symbol(c, state, f->avctx->bits_per_raw_sample, 0);
put_rac(c, state, 1); //chroma planes
put_rac(c, state, f->chroma_planes);
put_symbol(c, state, f->chroma_h_shift, 0);
put_symbol(c, state, f->chroma_v_shift, 0);
put_rac(c, state, f->transparency);
......@@ -916,6 +917,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
case PIX_FMT_YUV420P10:
case PIX_FMT_YUV422P10:
s->packed_at_lsb = 1;
case PIX_FMT_GRAY16:
case PIX_FMT_YUV444P16:
case PIX_FMT_YUV422P16:
case PIX_FMT_YUV420P16:
......@@ -934,10 +936,12 @@ static av_cold int encode_init(AVCodecContext *avctx)
case PIX_FMT_YUV420P:
case PIX_FMT_YUV411P:
case PIX_FMT_YUV410P:
s->chroma_planes= avctx->pix_fmt == PIX_FMT_GRAY16 ? 0 : 1;
s->colorspace= 0;
break;
case PIX_FMT_YUVA444P:
case PIX_FMT_YUVA420P:
s->chroma_planes= 1;
s->colorspace= 0;
s->transparency= 1;
break;
......@@ -1101,8 +1105,10 @@ static int encode_slice(AVCodecContext *c, void *arg){
encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0);
encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
if (f->chroma_planes){
encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
}
if (fs->transparency)
encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2);
}else{
......@@ -1435,8 +1441,10 @@ static int decode_slice(AVCodecContext *c, void *arg){
const int cy= y>>f->chroma_v_shift;
decode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0);
decode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
decode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
if (f->chroma_planes){
decode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
decode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
}
if (fs->transparency)
decode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2);
}else{
......@@ -1567,7 +1575,7 @@ static int read_header(FFV1Context *f){
f->colorspace= get_symbol(c, state, 0); //YUV cs type
if(f->version>0)
f->avctx->bits_per_raw_sample= get_symbol(c, state, 0);
get_rac(c, state); //no chroma = false
f->chroma_planes= get_rac(c, state);
f->chroma_h_shift= get_symbol(c, state, 0);
f->chroma_v_shift= get_symbol(c, state, 0);
f->transparency= get_rac(c, state);
......@@ -1575,7 +1583,9 @@ static int read_header(FFV1Context *f){
}
if(f->colorspace==0){
if(f->avctx->bits_per_raw_sample<=8 && !f->transparency){
if(f->avctx->bits_per_raw_sample>8 && !f->transparency && !f->chroma_planes){
f->avctx->pix_fmt= PIX_FMT_GRAY16;
}else if(f->avctx->bits_per_raw_sample<=8 && !f->transparency){
switch(16*f->chroma_h_shift + f->chroma_v_shift){
case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P; break;
case 0x01: f->avctx->pix_fmt= PIX_FMT_YUV440P; break;
......@@ -1817,7 +1827,7 @@ AVCodec ff_ffv1_encoder = {
.encode = encode_frame,
.close = common_end,
.capabilities = CODEC_CAP_SLICE_THREADS,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUVA420P, PIX_FMT_YUV444P, PIX_FMT_YUVA444P, PIX_FMT_YUV440P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_0RGB32, PIX_FMT_RGB32, PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, PIX_FMT_YUV444P16, PIX_FMT_YUV420P9, PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, PIX_FMT_NONE},
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUVA420P, PIX_FMT_YUV444P, PIX_FMT_YUVA444P, PIX_FMT_YUV440P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_0RGB32, PIX_FMT_RGB32, PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, PIX_FMT_YUV444P16, PIX_FMT_YUV420P9, PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, PIX_FMT_GRAY16, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
};
#endif
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