* DVB subtitle encoding for ffmpeg
* Copyright (c) 2005 Fabrice Bellard.
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
+#include "bytestream.h"
typedef struct DVBSubtitleContext {
int hide_state;
#define SCALEBITS 10
#define ONE_HALF (1 << (SCALEBITS - 1))
-#define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
+#define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
#define RGB_TO_Y_CCIR(r, g, b) \
((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
-static inline void putbe16(uint8_t **pq, uint16_t v)
-{
- uint8_t *q;
- q = *pq;
- *q++ = v >> 8;
- *q++ = v;
- *pq = q;
-}
-
static int encode_dvb_subtitles(DVBSubtitleContext *s,
uint8_t *outbuf, AVSubtitle *h)
{
*q++ = 0x0f; /* sync_byte */
*q++ = 0x10; /* segment_type */
- putbe16(&q, page_id);
+ bytestream_put_be16(&q, page_id);
pseg_len = q;
q += 2; /* segment length */
*q++ = 30; /* page_timeout (seconds) */
for (region_id = 0; region_id < h->num_rects; region_id++) {
*q++ = region_id;
*q++ = 0xff; /* reserved */
- putbe16(&q, h->rects[region_id].x); /* left pos */
- putbe16(&q, h->rects[region_id].y); /* top pos */
+ bytestream_put_be16(&q, h->rects[region_id].x); /* left pos */
+ bytestream_put_be16(&q, h->rects[region_id].y); /* top pos */
}
- putbe16(&pseg_len, q - pseg_len - 2);
+ bytestream_put_be16(&pseg_len, q - pseg_len - 2);
if (!s->hide_state) {
for (clut_id = 0; clut_id < h->num_rects; clut_id++) {
*q++ = 0x0f; /* sync byte */
*q++ = 0x12; /* CLUT definition segment */
- putbe16(&q, page_id);
+ bytestream_put_be16(&q, page_id);
pseg_len = q;
q += 2; /* segment length */
*q++ = clut_id;
}
}
- putbe16(&pseg_len, q - pseg_len - 2);
+ bytestream_put_be16(&pseg_len, q - pseg_len - 2);
}
}
*q++ = 0x0f; /* sync_byte */
*q++ = 0x11; /* segment_type */
- putbe16(&q, page_id);
+ bytestream_put_be16(&q, page_id);
pseg_len = q;
q += 2; /* segment length */
*q++ = region_id;
*q++ = (s->object_version << 4) | (0 << 3) | 0x07; /* version , no fill */
- putbe16(&q, h->rects[region_id].w); /* region width */
- putbe16(&q, h->rects[region_id].h); /* region height */
+ bytestream_put_be16(&q, h->rects[region_id].w); /* region width */
+ bytestream_put_be16(&q, h->rects[region_id].h); /* region height */
*q++ = ((1 + bpp_index) << 5) | ((1 + bpp_index) << 2) | 0x03;
*q++ = region_id; /* clut_id == region_id */
*q++ = 0; /* 8 bit fill colors */
*q++ = 0x03; /* 4 bit and 2 bit fill colors */
if (!s->hide_state) {
- putbe16(&q, region_id); /* object_id == region_id */
+ bytestream_put_be16(&q, region_id); /* object_id == region_id */
*q++ = (0 << 6) | (0 << 4);
*q++ = 0;
*q++ = 0xf0;
*q++ = 0;
}
- putbe16(&pseg_len, q - pseg_len - 2);
+ bytestream_put_be16(&pseg_len, q - pseg_len - 2);
}
if (!s->hide_state) {
*q++ = 0x0f; /* sync byte */
*q++ = 0x13;
- putbe16(&q, page_id);
+ bytestream_put_be16(&q, page_id);
pseg_len = q;
q += 2; /* segment length */
- putbe16(&q, object_id);
+ bytestream_put_be16(&q, object_id);
*q++ = (s->object_version << 4) | (0 << 2) | (0 << 1) | 1; /* version = 0,
onject_coding_method,
non_modifying_color_flag */
h->rects[object_id].w * 2, h->rects[object_id].w,
h->rects[object_id].h >> 1);
- putbe16(&ptop_field_len, bottom_ptr - top_ptr);
- putbe16(&pbottom_field_len, q - bottom_ptr);
+ bytestream_put_be16(&ptop_field_len, bottom_ptr - top_ptr);
+ bytestream_put_be16(&pbottom_field_len, q - bottom_ptr);
}
- putbe16(&pseg_len, q - pseg_len - 2);
+ bytestream_put_be16(&pseg_len, q - pseg_len - 2);
}
}
*q++ = 0x0f; /* sync_byte */
*q++ = 0x80; /* segment_type */
- putbe16(&q, page_id);
+ bytestream_put_be16(&q, page_id);
pseg_len = q;
q += 2; /* segment length */
- putbe16(&pseg_len, q - pseg_len - 2);
+ bytestream_put_be16(&pseg_len, q - pseg_len - 2);
*q++ = 0xff; /* end of PES data */
projects / ffmpeg / blobdiff