virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-03 05:10:03 +02:00
Code Issues Releases Activity

avcodec/j2kenc: Planar RGB support

Browse Source 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-03-30 19:27:00 +02:00
parent ad4d647591
commit b41dabd00d
No known key found for this signature in database
GPG Key ID: B18E8928B3948D64
1 changed files with 11 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
libavcodec/j2kenc.c
View File

@ -115,6 +115,7 @@ typedef struct {
int width, height; ///< image width and height
uint8_t cbps[4]; ///< bits per sample in particular components
uint8_t comp_remap[4];
int chroma_shift[2];
uint8_t planar;
int ncomponents;
@ -512,17 +513,18 @@ static int init_tiles(Jpeg2000EncoderContext *s)
Jpeg2000Tile *tile = s->tile + tileno; \
if (s->planar){ \
for (compno = 0; compno < s->ncomponents; compno++){ \
int icompno = s->comp_remap[compno]; \
Jpeg2000Component *comp = tile->comp + compno; \
int *dst = comp->i_data; \
int cbps = s->cbps[compno]; \
line = (const PIXEL*)s->picture->data[compno] \
+ comp->coord[1][0] * (s->picture->linesize[compno] / sizeof(PIXEL)) \
line = (const PIXEL*)s->picture->data[icompno] \
+ comp->coord[1][0] * (s->picture->linesize[icompno] / sizeof(PIXEL)) \
+ comp->coord[0][0]; \
for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){ \
const PIXEL *ptr = line; \
for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++) \
*dst++ = *ptr++ - (1 << (cbps - 1)); \
line += s->picture->linesize[compno] / sizeof(PIXEL); \
line += s->picture->linesize[icompno] / sizeof(PIXEL); \
} \
} \
} else{ \
@ -1763,6 +1765,7 @@ static av_cold int j2kenc_init(AVCodecContext *avctx)
s->ncomponents = desc->nb_components;
for (i = 0; i < 3; i++) {
s->cbps[i] = desc->comp[i].depth;
s->comp_remap[i] = i; //default
}
if ((desc->flags & AV_PIX_FMT_FLAG_PLANAR) && s->ncomponents > 1) {
@ -1771,6 +1774,11 @@ static av_cold int j2kenc_init(AVCodecContext *avctx)
s->chroma_shift, s->chroma_shift + 1);
if (ret)
return ret;
if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
s->comp_remap[0] = 2;
s->comp_remap[1] = 0;
s->comp_remap[2] = 1;
}
}
ff_thread_once(&init_static_once, init_luts);