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Merge commit 'a17a7661906ba295d67afd80ac0770422e1b02b3'

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* commit 'a17a7661906ba295d67afd80ac0770422e1b02b3':
  lavc: Add data and linesize to AVSubtitleRect

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
pull/155/head
Hendrik Leppkes 9 years ago
parent 37498a4b20 a17a766190
commit ee573b4d31
11 changed files with 183 additions and 86 deletions
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  1. 4
      doc/APIchanges
  2. 13
      libavcodec/avcodec.h
  3. 6
      libavcodec/dvbsub.c
  4. 41
      libavcodec/dvbsubdec.c
  5. 61
      libavcodec/dvdsubdec.c
  6. 43
      libavcodec/dvdsubenc.c
  7. 27
      libavcodec/pgssubdec.c
  8. 8
      libavcodec/utils.c
  9. 5
      libavcodec/version.h
  10. 34
      libavcodec/xsubdec.c
  11. 27
      libavcodec/xsubenc.c

4
doc/APIchanges
Unescape View File

@ -15,6 +15,10 @@ libavutil: 2015-08-28
API changes, most recent first:
2015-10-22 - xxxxxxx - lavc 57.9.100 / lavc 57.5.0 - avcodec.h
Add data and linesize array to AVSubtitleRect, to be used instead of
the ones from the embedded AVPicture.
2015-10-22 - xxxxxxx - lavc 57.8.100 / lavc 57.0.0 - qsv.h
Add an API for allocating opaque surfaces.

13
libavcodec/avcodec.h
Unescape View File

@ -3618,11 +3618,20 @@ typedef struct AVSubtitleRect {
int h; ///< height of pict, undefined when pict is not set
int nb_colors; ///< number of colors in pict, undefined when pict is not set
#if FF_API_AVPICTURE
/**
* data+linesize for the bitmap of this subtitle.
* can be set for text/ass as well once they are rendered
* @deprecated unused
*/
attribute_deprecated
AVPicture pict;
#endif
/**
* data+linesize for the bitmap of this subtitle.
* Can be set for text/ass as well once they are rendered.
*/
uint8_t *data[4];
int linesize[4];
enum AVSubtitleType type;
char *text; ///< 0 terminated plain UTF-8 text

6
libavcodec/dvbsub.c
Unescape View File

@ -315,7 +315,7 @@ static int encode_dvb_subtitles(DVBSubtitleContext *s,
*q++ = (1 << (7 - bpp_index)) | (0xf << 1) | 1; /* 2 bits/pixel full range */
{
int a, r, g, b;
uint32_t x= ((uint32_t*)h->rects[clut_id]->pict.data[1])[i];
uint32_t x= ((uint32_t*)h->rects[clut_id]->data[1])[i];
a = (x >> 24) & 0xff;
r = (x >> 16) & 0xff;
g = (x >> 8) & 0xff;
@ -410,10 +410,10 @@ static int encode_dvb_subtitles(DVBSubtitleContext *s,
q += 2;
top_ptr = q;
dvb_encode_rle(&q, h->rects[object_id]->pict.data[0], h->rects[object_id]->w * 2,
dvb_encode_rle(&q, h->rects[object_id]->data[0], h->rects[object_id]->w * 2,
h->rects[object_id]->w, h->rects[object_id]->h >> 1);
bottom_ptr = q;
dvb_encode_rle(&q, h->rects[object_id]->pict.data[0] + h->rects[object_id]->w,
dvb_encode_rle(&q, h->rects[object_id]->data[0] + h->rects[object_id]->w,
h->rects[object_id]->w * 2, h->rects[object_id]->w,
h->rects[object_id]->h >> 1);

41
libavcodec/dvbsubdec.c
Unescape View File

@ -761,14 +761,14 @@ static int dvbsub_read_8bit_string(AVCodecContext *avctx,
return pixels_read;
}
static void compute_default_clut(AVPicture *frame, int w, int h)
static void compute_default_clut(AVSubtitleRect *rect, int w, int h)
{
uint8_t list[256] = {0};
uint8_t list_inv[256];
int counttab[256] = {0};
int count, i, x, y;
#define V(x,y) frame->data[0][(x) + (y)*frame->linesize[0]]
#define V(x,y) rect->data[0][(x) + (y)*rect->linesize[0]]
for (y = 0; y<h; y++) {
for (x = 0; x<w; x++) {
int v = V(x,y) + 1;
@ -779,7 +779,7 @@ static void compute_default_clut(AVPicture *frame, int w, int h)
counttab[v-1] += !!((v!=vl) + (v!=vr) + (v!=vt) + (v!=vb));
}
}
#define L(x,y) list[ frame->data[0][(x) + (y)*frame->linesize[0]] ]
#define L(x,y) list[ rect->data[0][(x) + (y)*rect->linesize[0]] ]
for (i = 0; i<256; i++) {
int scoretab[256] = {0};
@ -787,7 +787,7 @@ static void compute_default_clut(AVPicture *frame, int w, int h)
int bestv = 0;
for (y = 0; y<h; y++) {
for (x = 0; x<w; x++) {
int v = frame->data[0][x + y*frame->linesize[0]];
int v = rect->data[0][x + y*rect->linesize[0]];
int l_m = list[v];
int l_l = x ? L(x-1, y) : 1;
int l_r = x+1<w ? L(x+1, y) : 1;
@ -813,7 +813,7 @@ static void compute_default_clut(AVPicture *frame, int w, int h)
count = i - 1;
for (i--; i>=0; i--) {
int v = i*255/count;
AV_WN32(frame->data[1] + 4*list_inv[i], RGBA(v/2,v,v/2,v));
AV_WN32(rect->data[1] + 4*list_inv[i], RGBA(v/2,v,v/2,v));
}
}
@ -827,7 +827,7 @@ static int save_subtitle_set(AVCodecContext *avctx, AVSubtitle *sub, int *got_ou
AVSubtitleRect *rect;
DVBSubCLUT *clut;
uint32_t *clut_table;
int i;
int i,j;
int offset_x=0, offset_y=0;
int ret = 0;
@ -884,7 +884,7 @@ static int save_subtitle_set(AVCodecContext *avctx, AVSubtitle *sub, int *got_ou
rect->h = region->height;
rect->nb_colors = (1 << region->depth);
rect->type = SUBTITLE_BITMAP;
rect->pict.linesize[0] = region->width;
rect->linesize[0] = region->width;
clut = get_clut(ctx, region->clut);
@ -904,23 +904,32 @@ static int save_subtitle_set(AVCodecContext *avctx, AVSubtitle *sub, int *got_ou
break;
}
rect->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
if (!rect->pict.data[1]) {
rect->data[1] = av_mallocz(AVPALETTE_SIZE);
if (!rect->data[1]) {
ret = AVERROR(ENOMEM);
goto fail;
}
memcpy(rect->pict.data[1], clut_table, (1 << region->depth) * sizeof(uint32_t));
memcpy(rect->data[1], clut_table, (1 << region->depth) * sizeof(uint32_t));
rect->pict.data[0] = av_malloc(region->buf_size);
if (!rect->pict.data[0]) {
rect->data[0] = av_malloc(region->buf_size);
if (!rect->data[0]) {
ret = AVERROR(ENOMEM);
goto fail;
}
memcpy(rect->pict.data[0], region->pbuf, region->buf_size);
memcpy(rect->data[0], region->pbuf, region->buf_size);
if ((clut == &default_clut && ctx->compute_clut == -1) || ctx->compute_clut == 1)
compute_default_clut(&rect->pict, rect->w, rect->h);
compute_default_clut(rect, rect->w, rect->h);
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
for (j = 0; j < 4; j++) {
rect->pict.data[j] = rect->data[j];
rect->pict.linesize[j] = rect->linesize[j];
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
i++;
}
@ -932,8 +941,8 @@ fail:
for(i=0; i<sub->num_rects; i++) {
rect = sub->rects[i];
if (rect) {
av_freep(&rect->pict.data[0]);
av_freep(&rect->pict.data[1]);
av_freep(&rect->data[0]);
av_freep(&rect->data[1]);
}
av_freep(&sub->rects[i]);
}

61
libavcodec/dvdsubdec.c
Unescape View File

@ -206,8 +206,8 @@ static void reset_rects(AVSubtitle *sub_header)
if (sub_header->rects) {
for (i = 0; i < sub_header->num_rects; i++) {
av_freep(&sub_header->rects[i]->pict.data[0]);
av_freep(&sub_header->rects[i]->pict.data[1]);
av_freep(&sub_header->rects[i]->data[0]);
av_freep(&sub_header->rects[i]->data[1]);
av_freep(&sub_header->rects[i]);
}
av_freep(&sub_header->rects);
@ -374,7 +374,7 @@ static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,
if (!sub_header->rects[0])
goto fail;
sub_header->num_rects = 1;
bitmap = sub_header->rects[0]->pict.data[0] = av_malloc(w * h);
bitmap = sub_header->rects[0]->data[0] = av_malloc(w * h);
if (!bitmap)
goto fail;
if (decode_rle(bitmap, w * 2, w, (h + 1) / 2,
@ -383,17 +383,19 @@ static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,
if (decode_rle(bitmap + w, w * 2, w, h / 2,
buf, offset2, buf_size, is_8bit) < 0)
goto fail;
sub_header->rects[0]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub_header->rects[0]->pict.data[1])
sub_header->rects[0]->data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub_header->rects[0]->data[1])
goto fail;
if (is_8bit) {
if (!yuv_palette)
goto fail;
sub_header->rects[0]->nb_colors = 256;
yuv_a_to_rgba(yuv_palette, alpha, (uint32_t*)sub_header->rects[0]->pict.data[1], 256);
yuv_a_to_rgba(yuv_palette, alpha,
(uint32_t *)sub_header->rects[0]->data[1],
256);
} else {
sub_header->rects[0]->nb_colors = 4;
guess_palette(ctx, (uint32_t*)sub_header->rects[0]->pict.data[1],
guess_palette(ctx, (uint32_t*)sub_header->rects[0]->data[1],
0xffff00);
}
sub_header->rects[0]->x = x1;
@ -401,8 +403,17 @@ static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,
sub_header->rects[0]->w = w;
sub_header->rects[0]->h = h;
sub_header->rects[0]->type = SUBTITLE_BITMAP;
sub_header->rects[0]->pict.linesize[0] = w;
sub_header->rects[0]->linesize[0] = w;
sub_header->rects[0]->flags = is_menu ? AV_SUBTITLE_FLAG_FORCED : 0;
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
for (i = 0; i < 4; i++) {
sub_header->rects[0]->pict.data[i] = sub_header->rects[0]->data[i];
sub_header->rects[0]->pict.linesize[i] = sub_header->rects[0]->linesize[i];
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
}
}
if (next_cmd_pos < cmd_pos) {
@ -443,29 +454,29 @@ static int find_smallest_bounding_rectangle(AVSubtitle *s)
return 0;
for(i = 0; i < s->rects[0]->nb_colors; i++) {
if ((((uint32_t*)s->rects[0]->pict.data[1])[i] >> 24) == 0)
if ((((uint32_t *)s->rects[0]->data[1])[i] >> 24) == 0)
transp_color[i] = 1;
}
y1 = 0;
while (y1 < s->rects[0]->h && is_transp(s->rects[0]->pict.data[0] + y1 * s->rects[0]->pict.linesize[0],
while (y1 < s->rects[0]->h && is_transp(s->rects[0]->data[0] + y1 * s->rects[0]->linesize[0],
1, s->rects[0]->w, transp_color))
y1++;
if (y1 == s->rects[0]->h) {
av_freep(&s->rects[0]->pict.data[0]);
av_freep(&s->rects[0]->data[0]);
s->rects[0]->w = s->rects[0]->h = 0;
return 0;
}
y2 = s->rects[0]->h - 1;
while (y2 > 0 && is_transp(s->rects[0]->pict.data[0] + y2 * s->rects[0]->pict.linesize[0], 1,
while (y2 > 0 && is_transp(s->rects[0]->data[0] + y2 * s->rects[0]->linesize[0], 1,
s->rects[0]->w, transp_color))
y2--;
x1 = 0;
while (x1 < (s->rects[0]->w - 1) && is_transp(s->rects[0]->pict.data[0] + x1, s->rects[0]->pict.linesize[0],
while (x1 < (s->rects[0]->w - 1) && is_transp(s->rects[0]->data[0] + x1, s->rects[0]->linesize[0],
s->rects[0]->h, transp_color))
x1++;
x2 = s->rects[0]->w - 1;
while (x2 > 0 && is_transp(s->rects[0]->pict.data[0] + x2, s->rects[0]->pict.linesize[0], s->rects[0]->h,
while (x2 > 0 && is_transp(s->rects[0]->data[0] + x2, s->rects[0]->linesize[0], s->rects[0]->h,
transp_color))
x2--;
w = x2 - x1 + 1;
@ -474,15 +485,25 @@ static int find_smallest_bounding_rectangle(AVSubtitle *s)
if (!bitmap)
return 1;
for(y = 0; y < h; y++) {
memcpy(bitmap + w * y, s->rects[0]->pict.data[0] + x1 + (y1 + y) * s->rects[0]->pict.linesize[0], w);
memcpy(bitmap + w * y, s->rects[0]->data[0] + x1 + (y1 + y) * s->rects[0]->linesize[0], w);
}
av_freep(&s->rects[0]->pict.data[0]);
s->rects[0]->pict.data[0] = bitmap;
s->rects[0]->pict.linesize[0] = w;
av_freep(&s->rects[0]->data[0]);
s->rects[0]->data[0] = bitmap;
s->rects[0]->linesize[0] = w;
s->rects[0]->w = w;
s->rects[0]->h = h;
s->rects[0]->x += x1;
s->rects[0]->y += y1;
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
for (i = 0; i < 4; i++) {
s->rects[0]->pict.data[i] = s->rects[0]->data[i];
s->rects[0]->pict.linesize[i] = s->rects[0]->linesize[i];
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
return 1;
}
@ -583,8 +604,8 @@ static int dvdsub_decode(AVCodecContext *avctx,
ff_dlog(NULL, "start=%d ms end =%d ms\n",
sub->start_display_time,
sub->end_display_time);
ppm_save(ppm_name, sub->rects[0]->pict.data[0],
sub->rects[0]->w, sub->rects[0]->h, (uint32_t*) sub->rects[0]->pict.data[1]);
ppm_save(ppm_name, sub->rects[0]->data[0],
sub->rects[0]->w, sub->rects[0]->h, (uint32_t*) sub->rects[0]->data[1]);
}
#endif

43
libavcodec/dvdsubenc.c
Unescape View File

@ -118,15 +118,15 @@ static void count_colors(AVCodecContext *avctx, unsigned hits[33],
{
DVDSubtitleContext *dvdc = avctx->priv_data;
unsigned count[256] = { 0 };
uint32_t *palette = (uint32_t *)r->pict.data[1];
uint32_t *palette = (uint32_t *)r->data[1];
uint32_t color;
int x, y, i, j, match, d, best_d, av_uninit(best_j);
uint8_t *p = r->pict.data[0];
uint8_t *p = r->data[0];
for (y = 0; y < r->h; y++) {
for (x = 0; x < r->w; x++)
count[*(p++)]++;
p += r->pict.linesize[0] - r->w;
p += r->linesize[0] - r->w;
}
for (i = 0; i < 256; i++) {
if (!count[i]) /* avoid useless search */
@ -236,14 +236,14 @@ static void copy_rectangle(AVSubtitleRect *dst, AVSubtitleRect *src, int cmap[])
int x, y;
uint8_t *p, *q;
p = src->pict.data[0];
q = dst->pict.data[0] + (src->x - dst->x) +
(src->y - dst->y) * dst->pict.linesize[0];
p = src->data[0];
q = dst->data[0] + (src->x - dst->x) +
(src->y - dst->y) * dst->linesize[0];
for (y = 0; y < src->h; y++) {
for (x = 0; x < src->w; x++)
*(q++) = cmap[*(p++)];
p += src->pict.linesize[0] - src->w;
q += dst->pict.linesize[0] - src->w;
p += src->linesize[0] - src->w;
q += dst->linesize[0] - src->w;
}
}
@ -277,6 +277,21 @@ static int encode_dvd_subtitles(AVCodecContext *avctx,
forced = 1;
break;
}
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
for (i = 0; i < rects; i++)
if (!h->rects[i]->data[0]) {
AVSubtitleRect *rect = h->rects[i];
int j;
for (j = 0; j < 4; j++) {
rect->data[j] = rect->pict.data[j];
rect->linesize[j] = rect->pict.linesize[j];
}
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
vrect = *h->rects[0];
if (rects > 1) {
@ -312,17 +327,17 @@ static int encode_dvd_subtitles(AVCodecContext *avctx,
if (rects > 1) {
if (!(vrect_data = av_calloc(vrect.w, vrect.h)))
return AVERROR(ENOMEM);
vrect.pict.data [0] = vrect_data;
vrect.pict.linesize[0] = vrect.w;
vrect.data [0] = vrect_data;
vrect.linesize[0] = vrect.w;
for (i = 0; i < rects; i++) {
build_color_map(avctx, cmap, (uint32_t *)h->rects[i]->pict.data[1],
build_color_map(avctx, cmap, (uint32_t *)h->rects[i]->data[1],
out_palette, out_alpha);
copy_rectangle(&vrect, h->rects[i], cmap);
}
for (i = 0; i < 4; i++)
cmap[i] = i;
} else {
build_color_map(avctx, cmap, (uint32_t *)h->rects[0]->pict.data[1],
build_color_map(avctx, cmap, (uint32_t *)h->rects[0]->data[1],
out_palette, out_alpha);
}
@ -342,10 +357,10 @@ static int encode_dvd_subtitles(AVCodecContext *avctx,
ret = AVERROR_BUFFER_TOO_SMALL;
goto fail;
}
dvd_encode_rle(&q, vrect.pict.data[0], vrect.w * 2,
dvd_encode_rle(&q, vrect.data[0], vrect.w * 2,
vrect.w, (vrect.h + 1) >> 1, cmap);
offset2 = q - outbuf;
dvd_encode_rle(&q, vrect.pict.data[0] + vrect.w, vrect.w * 2,
dvd_encode_rle(&q, vrect.data[0] + vrect.w, vrect.w * 2,
vrect.w, vrect.h >> 1, cmap);
if (dvdc->even_rows_fix && (vrect.h & 1)) {

27
libavcodec/pgssubdec.c
Unescape View File

@ -166,9 +166,9 @@ static int decode_rle(AVCodecContext *avctx, AVSubtitleRect *rect,
rle_bitmap_end = buf + buf_size;
rect->pict.data[0] = av_malloc_array(rect->w, rect->h);
rect->data[0] = av_malloc_array(rect->w, rect->h);
if (!rect->pict.data[0])
if (!rect->data[0])
return AVERROR(ENOMEM);
pixel_count = 0;
@ -190,7 +190,7 @@ static int decode_rle(AVCodecContext *avctx, AVSubtitleRect *rect,
}
if (run > 0 && pixel_count + run <= rect->w * rect->h) {
memset(rect->pict.data[0] + pixel_count, color, run);
memset(rect->data[0] + pixel_count, color, run);
pixel_count += run;
} else if (!run) {
/*
@ -523,6 +523,8 @@ static int display_end_segment(AVCodecContext *avctx, void *data,
}
for (i = 0; i < ctx->presentation.object_count; i++) {
PGSSubObject *object;
AVSubtitleRect *rect;
int j;
sub->rects[i] = av_mallocz(sizeof(*sub->rects[0]));
if (!sub->rects[i]) {
@ -553,7 +555,7 @@ static int display_end_segment(AVCodecContext *avctx, void *data,
sub->rects[i]->w = object->w;
sub->rects[i]->h = object->h;
sub->rects[i]->pict.linesize[0] = object->w;
sub->rects[i]->linesize[0] = object->w;
if (object->rle) {
if (object->rle_remaining_len) {
@ -578,15 +580,24 @@ static int display_end_segment(AVCodecContext *avctx, void *data,
}
/* Allocate memory for colors */
sub->rects[i]->nb_colors = 256;
sub->rects[i]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub->rects[i]->pict.data[1]) {
sub->rects[i]->data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub->rects[i]->data[1]) {
avsubtitle_free(sub);
return AVERROR(ENOMEM);
}
if (!ctx->forced_subs_only || ctx->presentation.objects[i].composition_flag & 0x40)
memcpy(sub->rects[i]->pict.data[1], palette->clut, sub->rects[i]->nb_colors * sizeof(uint32_t));
memcpy(sub->rects[i]->data[1], palette->clut, sub->rects[i]->nb_colors * sizeof(uint32_t));
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
rect = sub->rects[i];
for (j = 0; j < 4; j++) {
rect->pict.data[j] = rect->data[j];
rect->pict.linesize[j] = rect->linesize[j];
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
}
return 1;
}

8
libavcodec/utils.c
Unescape View File

@ -2480,10 +2480,10 @@ void avsubtitle_free(AVSubtitle *sub)
int i;
for (i = 0; i < sub->num_rects; i++) {
av_freep(&sub->rects[i]->pict.data[0]);
av_freep(&sub->rects[i]->pict.data[1]);
av_freep(&sub->rects[i]->pict.data[2]);
av_freep(&sub->rects[i]->pict.data[3]);
av_freep(&sub->rects[i]->data[0]);
av_freep(&sub->rects[i]->data[1]);
av_freep(&sub->rects[i]->data[2]);
av_freep(&sub->rects[i]->data[3]);
av_freep(&sub->rects[i]->text);
av_freep(&sub->rects[i]->ass);
av_freep(&sub->rects[i]);

5
libavcodec/version.h
Unescape View File

@ -29,7 +29,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 57
#define LIBAVCODEC_VERSION_MINOR 8
#define LIBAVCODEC_VERSION_MINOR 9
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@ -188,5 +188,8 @@
#ifndef FF_API_CONVERGENCE_DURATION
#define FF_API_CONVERGENCE_DURATION (LIBAVCODEC_VERSION_MAJOR < 59)
#endif
#ifndef FF_API_AVPICTURE
#define FF_API_AVPICTURE (LIBAVCODEC_VERSION_MAJOR < 59)
#endif
#endif /* AVCODEC_VERSION_H */

34
libavcodec/xsubdec.c
Unescape View File

@ -57,6 +57,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
int64_t packet_time = 0;
GetBitContext gb;
int has_alpha = avctx->codec_tag == MKTAG('D','X','S','A');
AVSubtitleRect *rect;
int j;
// check that at least header fits
if (buf_size < 27 + 7 * 2 + 4 * (3 + has_alpha)) {
@ -104,13 +106,13 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
sub->rects[0]->x = x; sub->rects[0]->y = y;
sub->rects[0]->w = w; sub->rects[0]->h = h;
sub->rects[0]->type = SUBTITLE_BITMAP;
sub->rects[0]->pict.linesize[0] = w;
sub->rects[0]->pict.data[0] = av_malloc(w * h);
sub->rects[0]->linesize[0] = w;
sub->rects[0]->data[0] = av_malloc(w * h);
sub->rects[0]->nb_colors = 4;
sub->rects[0]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub->rects[0]->pict.data[0] || !sub->rects[0]->pict.data[1]) {
av_freep(&sub->rects[0]->pict.data[1]);
av_freep(&sub->rects[0]->pict.data[0]);
sub->rects[0]->data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub->rects[0]->data[0] || !sub->rects[0]->data[1]) {
av_freep(&sub->rects[0]->data[1]);
av_freep(&sub->rects[0]->data[0]);
av_freep(&sub->rects[0]);
av_freep(&sub->rects);
return AVERROR(ENOMEM);
@ -119,23 +121,33 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
// read palette
for (i = 0; i < sub->rects[0]->nb_colors; i++)
((uint32_t*)sub->rects[0]->pict.data[1])[i] = bytestream_get_be24(&buf);
((uint32_t*)sub->rects[0]->data[1])[i] = bytestream_get_be24(&buf);
if (!has_alpha) {
// make all except background (first entry) non-transparent
for (i = 1; i < sub->rects[0]->nb_colors; i++)
((uint32_t *)sub->rects[0]->pict.data[1])[i] |= 0xff000000;
((uint32_t *)sub->rects[0]->data[1])[i] |= 0xff000000;
} else {
for (i = 0; i < sub->rects[0]->nb_colors; i++)
((uint32_t *)sub->rects[0]->pict.data[1])[i] |= *buf++ << 24;
((uint32_t *)sub->rects[0]->data[1])[i] |= *buf++ << 24;
}
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
rect = sub->rects[0];
for (j = 0; j < 4; j++) {
rect->pict.data[j] = rect->data[j];
rect->pict.linesize[j] = rect->linesize[j];
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
// process RLE-compressed data
init_get_bits(&gb, buf, (buf_end - buf) * 8);
bitmap = sub->rects[0]->pict.data[0];
bitmap = sub->rects[0]->data[0];
for (y = 0; y < h; y++) {
// interlaced: do odd lines
if (y == (h + 1) / 2) bitmap = sub->rects[0]->pict.data[0] + w;
if (y == (h + 1) / 2) bitmap = sub->rects[0]->data[0] + w;
for (x = 0; x < w; ) {
int log2 = ff_log2_tab[show_bits(&gb, 8)];
int run = get_bits(&gb, 14 - 4 * (log2 >> 1));

27
libavcodec/xsubenc.c
Unescape View File

@ -131,8 +131,21 @@ static int xsub_encode(AVCodecContext *avctx, unsigned char *buf,
if (h->num_rects != 1)
av_log(avctx, AV_LOG_WARNING, "Only single rects supported (%d in subtitle.)\n", h->num_rects);
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
if (!h->rects[0]->data[0]) {
AVSubtitleRect *rect = h->rects[0];
int j;
for (j = 0; j < 4; j++) {
rect->data[j] = rect->pict.data[j];
rect->linesize[j] = rect->pict.linesize[j];
}
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
// TODO: render text-based subtitles into bitmaps
if (!h->rects[0]->pict.data[0] || !h->rects[0]->pict.data[1]) {
if (!h->rects[0]->data[0] || !h->rects[0]->data[1]) {
av_log(avctx, AV_LOG_WARNING, "No subtitle bitmap available.\n");
return -1;
}
@ -142,7 +155,7 @@ static int xsub_encode(AVCodecContext *avctx, unsigned char *buf,
av_log(avctx, AV_LOG_WARNING, "No more than 4 subtitle colors supported (%d found.)\n", h->rects[0]->nb_colors);
// TODO: Palette swapping if color zero is not transparent
if (((uint32_t *)h->rects[0]->pict.data[1])[0] & 0xff000000)
if (((uint32_t *)h->rects[0]->data[1])[0] & 0xff000000)
av_log(avctx, AV_LOG_WARNING, "Color index 0 is not transparent. Transparency will be messed up.\n");
if (make_tc(startTime, start_tc) || make_tc(endTime, end_tc)) {
@ -174,19 +187,19 @@ static int xsub_encode(AVCodecContext *avctx, unsigned char *buf,
// Palette
for (i=0; i<4; i++)
bytestream_put_be24(&hdr, ((uint32_t *)h->rects[0]->pict.data[1])[i]);
bytestream_put_be24(&hdr, ((uint32_t *)h->rects[0]->data[1])[i]);
// Bitmap
// RLE buffer. Reserve 2 bytes for possible padding after the last row.
init_put_bits(&pb, hdr, bufsize - (hdr - buf) - 2);
if (xsub_encode_rle(&pb, h->rects[0]->pict.data[0],
h->rects[0]->pict.linesize[0]*2,
if (xsub_encode_rle(&pb, h->rects[0]->data[0],
h->rects[0]->linesize[0] * 2,
h->rects[0]->w, (h->rects[0]->h + 1) >> 1))
return -1;
bytestream_put_le16(&rlelenptr, put_bits_count(&pb) >> 3); // Length of first field
if (xsub_encode_rle(&pb, h->rects[0]->pict.data[0] + h->rects[0]->pict.linesize[0],
h->rects[0]->pict.linesize[0]*2,
if (xsub_encode_rle(&pb, h->rects[0]->data[0] + h->rects[0]->linesize[0],
h->rects[0]->linesize[0] * 2,
h->rects[0]->w, h->rects[0]->h >> 1))
return -1;

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