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avcodec/j2kenc: Planar RGB support

Michael Niedermayer committed 3 years ago

Commit b41dabd1 parent ad4d6471 file · +11 −3Browse files

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libavcodec/j2kenc.c+11−3
@@ -115,6 +115,7 @@ typedef struct { · 114 unmodified lines
115115
116116 int width, height; ///< image width and height
117117 uint8_t cbps[4]; ///< bits per sample in particular components
118+ uint8_t comp_remap[4];
118119 int chroma_shift[2];
119120 uint8_t planar;
120121 int ncomponents;
@@ -512,17 +513,18 @@ static int init_tiles(Jpeg2000EncoderContext *s) · 391 unmodified lines
512513 Jpeg2000Tile *tile = s->tile + tileno; \
513514 if (s->planar){ \
514515 for (compno = 0; compno < s->ncomponents; compno++){ \
516+ int icompno = s->comp_remap[compno]; \
515517 Jpeg2000Component *comp = tile->comp + compno; \
516518 int *dst = comp->i_data; \
517519 int cbps = s->cbps[compno]; \
518− line = (const PIXEL*)s->picture->data[compno] \
519− + comp->coord[1][0] * (s->picture->linesize[compno] / sizeof(PIXEL)) \
520+ line = (const PIXEL*)s->picture->data[icompno] \
521+ + comp->coord[1][0] * (s->picture->linesize[icompno] / sizeof(PIXEL)) \
520522 + comp->coord[0][0]; \
521523 for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){ \
522524 const PIXEL *ptr = line; \
523525 for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++) \
524526 *dst++ = *ptr++ - (1 << (cbps - 1)); \
525− line += s->picture->linesize[compno] / sizeof(PIXEL); \
527+ line += s->picture->linesize[icompno] / sizeof(PIXEL); \
526528 } \
527529 } \
528530 } else{ \
@@ -1763,6 +1765,7 @@ static av_cold int j2kenc_init(AVCodecContext *avctx) · 1234 unmodified lines
17631765 s->ncomponents = desc->nb_components;
17641766 for (i = 0; i < 3; i++) {
17651767 s->cbps[i] = desc->comp[i].depth;
1768+ s->comp_remap[i] = i; //default
17661769 }
17671770
17681771 if ((desc->flags & AV_PIX_FMT_FLAG_PLANAR) && s->ncomponents > 1) {
@@ -1771,6 +1774,11 @@ static av_cold int j2kenc_init(AVCodecContext *avctx) · 2 unmodified lines
17711774 s->chroma_shift, s->chroma_shift + 1);
17721775 if (ret)
17731776 return ret;
1777+ if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
1778+ s->comp_remap[0] = 2;
1779+ s->comp_remap[1] = 0;
1780+ s->comp_remap[2] = 1;
1781+ }
17741782 }
17751783
17761784 ff_thread_once(&init_static_once, init_luts);

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