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/*
* Flash Screen Video decoder
* Copyright (C) 2004 Alex Beregszaszi
* Copyright (C) 2006 Benjamin Larsson
* |
b78e7197 |
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or |
0919e788 |
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either |
b78e7197 |
* version 2.1 of the License, or (at your option) any later version. |
0919e788 |
* |
b78e7197 |
* FFmpeg is distributed in the hope that it will be useful, |
0919e788 |
* 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 |
b78e7197 |
* License along with FFmpeg; if not, write to the Free Software |
0919e788 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/** |
ba87f080 |
* @file |
0919e788 |
* Flash Screen Video decoder
* @author Alex Beregszaszi
* @author Benjamin Larsson |
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* @author Daniel Verkamp
* @author Konstantin Shishkov |
0919e788 |
* |
bc35ab3f |
* A description of the bitstream format for Flash Screen Video version 1/2
* is part of the SWF File Format Specification (version 10), which can be
* downloaded from http://www.adobe.com/devnet/swf.html. |
0919e788 |
*/
#include <stdio.h>
#include <stdlib.h> |
293fe6da |
#include <zlib.h> |
0919e788 |
|
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#include "libavutil/intreadwrite.h" |
0919e788 |
#include "avcodec.h" |
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#include "bytestream.h" |
9106a698 |
#include "get_bits.h" |
759001c5 |
#include "internal.h" |
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|
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typedef struct BlockInfo {
uint8_t *pos;
int size;
} BlockInfo;
|
0919e788 |
typedef struct FlashSVContext {
AVCodecContext *avctx; |
042aec41 |
AVFrame *frame; |
293fe6da |
int image_width, image_height;
int block_width, block_height;
uint8_t *tmpblock;
int block_size;
z_stream zstream; |
c2d23309 |
int ver;
const uint32_t *pal;
int is_keyframe;
uint8_t *keyframedata;
uint8_t *keyframe;
BlockInfo *blocks;
uint8_t *deflate_block;
int deflate_block_size;
int color_depth;
int zlibprime_curr, zlibprime_prev;
int diff_start, diff_height; |
0919e788 |
} FlashSVContext;
|
a33c7dd2 |
static int decode_hybrid(const uint8_t *sptr, const uint8_t *sptr_end, uint8_t *dptr, int dx, int dy, |
c2d23309 |
int h, int w, int stride, const uint32_t *pal)
{
int x, y;
const uint8_t *orig_src = sptr;
|
037fea38 |
for (y = dx + h; y > dx; y--) { |
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uint8_t *dst = dptr + (y * stride) + dy * 3;
for (x = 0; x < w; x++) { |
a33c7dd2 |
if (sptr >= sptr_end)
return AVERROR_INVALIDDATA; |
c2d23309 |
if (*sptr & 0x80) {
/* 15-bit color */
unsigned c = AV_RB16(sptr) & ~0x8000;
unsigned b = c & 0x1F;
unsigned g = (c >> 5) & 0x1F;
unsigned r = c >> 10;
/* 000aaabb -> aaabbaaa */
*dst++ = (b << 3) | (b >> 2);
*dst++ = (g << 3) | (g >> 2);
*dst++ = (r << 3) | (r >> 2);
sptr += 2;
} else {
/* palette index */
uint32_t c = pal[*sptr++];
bytestream_put_le24(&dst, c);
}
}
}
return sptr - orig_src;
}
|
042aec41 |
static av_cold int flashsv_decode_end(AVCodecContext *avctx)
{
FlashSVContext *s = avctx->priv_data;
inflateEnd(&s->zstream);
/* release the frame if needed */
av_frame_free(&s->frame);
/* free the tmpblock */ |
92cbd775 |
av_freep(&s->tmpblock); |
042aec41 |
return 0;
}
|
98a6fff9 |
static av_cold int flashsv_decode_init(AVCodecContext *avctx) |
0919e788 |
{ |
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FlashSVContext *s = avctx->priv_data; |
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int zret; // Zlib return code
|
293fe6da |
s->avctx = avctx; |
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s->zstream.zalloc = Z_NULL; |
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s->zstream.zfree = Z_NULL; |
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s->zstream.opaque = Z_NULL; |
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zret = inflateInit(&s->zstream); |
0919e788 |
if (zret != Z_OK) {
av_log(avctx, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
return 1;
} |
716d413c |
avctx->pix_fmt = AV_PIX_FMT_BGR24; |
042aec41 |
s->frame = av_frame_alloc();
if (!s->frame) {
flashsv_decode_end(avctx);
return AVERROR(ENOMEM);
} |
0919e788 |
return 0;
}
|
17fecb4a |
static int flashsv2_prime(FlashSVContext *s, uint8_t *src, int size) |
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{
z_stream zs; |
c466eb17 |
int zret; // Zlib return code |
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|
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if (!src)
return AVERROR_INVALIDDATA;
|
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zs.zalloc = NULL;
zs.zfree = NULL;
zs.opaque = NULL;
s->zstream.next_in = src;
s->zstream.avail_in = size;
s->zstream.next_out = s->tmpblock;
s->zstream.avail_out = s->block_size * 3;
inflate(&s->zstream, Z_SYNC_FLUSH);
|
b3eb4f54 |
if (deflateInit(&zs, 0) != Z_OK)
return -1; |
c2d23309 |
zs.next_in = s->tmpblock;
zs.avail_in = s->block_size * 3 - s->zstream.avail_out;
zs.next_out = s->deflate_block;
zs.avail_out = s->deflate_block_size;
deflate(&zs, Z_SYNC_FLUSH);
deflateEnd(&zs);
|
c466eb17 |
if ((zret = inflateReset(&s->zstream)) != Z_OK) {
av_log(s->avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", zret);
return AVERROR_UNKNOWN;
} |
c2d23309 |
s->zstream.next_in = s->deflate_block;
s->zstream.avail_in = s->deflate_block_size - zs.avail_out;
s->zstream.next_out = s->tmpblock;
s->zstream.avail_out = s->block_size * 3;
inflate(&s->zstream, Z_SYNC_FLUSH); |
c466eb17 |
return 0; |
c2d23309 |
}
|
b8783b98 |
static int flashsv_decode_block(AVCodecContext *avctx, AVPacket *avpkt,
GetBitContext *gb, int block_size, |
c2d23309 |
int width, int height, int x_pos, int y_pos,
int blk_idx) |
b8783b98 |
{
struct FlashSVContext *s = avctx->priv_data;
uint8_t *line = s->tmpblock;
int k;
int ret = inflateReset(&s->zstream);
if (ret != Z_OK) { |
c466eb17 |
av_log(avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", ret);
return AVERROR_UNKNOWN; |
b8783b98 |
} |
c2d23309 |
if (s->zlibprime_curr || s->zlibprime_prev) { |
17fecb4a |
ret = flashsv2_prime(s,
s->blocks[blk_idx].pos,
s->blocks[blk_idx].size); |
c466eb17 |
if (ret < 0)
return ret; |
c2d23309 |
} |
b8783b98 |
s->zstream.next_in = avpkt->data + get_bits_count(gb) / 8;
s->zstream.avail_in = block_size;
s->zstream.next_out = s->tmpblock;
s->zstream.avail_out = s->block_size * 3;
ret = inflate(&s->zstream, Z_FINISH);
if (ret == Z_DATA_ERROR) {
av_log(avctx, AV_LOG_ERROR, "Zlib resync occurred\n");
inflateSync(&s->zstream);
ret = inflate(&s->zstream, Z_FINISH);
}
if (ret != Z_OK && ret != Z_STREAM_END) {
//return -1;
} |
c2d23309 |
if (s->is_keyframe) { |
037fea38 |
s->blocks[blk_idx].pos = s->keyframedata + (get_bits_count(gb) / 8);
s->blocks[blk_idx].size = block_size; |
c2d23309 |
} |
4a64e679 |
y_pos += s->diff_start;
|
c2d23309 |
if (!s->color_depth) {
/* Flash Screen Video stores the image upside down, so copy
* lines to destination in reverse order. */
for (k = 1; k <= s->diff_height; k++) { |
042aec41 |
memcpy(s->frame->data[0] + x_pos * 3 +
(s->image_height - y_pos - k) * s->frame->linesize[0], |
c2d23309 |
line, width * 3);
/* advance source pointer to next line */
line += width * 3;
}
} else {
/* hybrid 15-bit/palette mode */ |
a33c7dd2 |
ret = decode_hybrid(s->tmpblock, s->zstream.next_out,
s->frame->data[0], |
4a64e679 |
s->image_height - (y_pos + 1 + s->diff_height), |
c2d23309 |
x_pos, s->diff_height, width, |
042aec41 |
s->frame->linesize[0], s->pal); |
a33c7dd2 |
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "decode_hybrid failed\n");
return ret;
} |
b8783b98 |
}
skip_bits_long(gb, 8 * block_size); /* skip the consumed bits */
return 0;
}
|
c2d23309 |
static int calc_deflate_block_size(int tmpblock_size)
{
z_stream zstream;
int size;
zstream.zalloc = Z_NULL;
zstream.zfree = Z_NULL;
zstream.opaque = Z_NULL;
if (deflateInit(&zstream, 0) != Z_OK)
return -1;
size = deflateBound(&zstream, tmpblock_size);
deflateEnd(&zstream);
return size;
} |
b8783b98 |
|
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static int flashsv_decode_frame(AVCodecContext *avctx, void *data, |
df9b9567 |
int *got_frame, AVPacket *avpkt) |
0919e788 |
{ |
037fea38 |
int buf_size = avpkt->size;
FlashSVContext *s = avctx->priv_data; |
759001c5 |
int h_blocks, v_blocks, h_part, v_part, i, j, ret; |
0919e788 |
GetBitContext gb; |
a084884b |
int last_blockwidth = s->block_width;
int last_blockheight= s->block_height; |
0919e788 |
/* no supplementary picture */
if (buf_size == 0)
return 0; |
b8fb21e9 |
if (buf_size < 4)
return -1; |
0919e788 |
|
c3311515 |
if ((ret = init_get_bits8(&gb, avpkt->data, buf_size)) < 0) |
22c00962 |
return ret; |
0919e788 |
/* start to parse the bitstream */ |
037fea38 |
s->block_width = 16 * (get_bits(&gb, 4) + 1);
s->image_width = get_bits(&gb, 12);
s->block_height = 16 * (get_bits(&gb, 4) + 1);
s->image_height = get_bits(&gb, 12); |
0919e788 |
|
a084884b |
if ( last_blockwidth != s->block_width
|| last_blockheight!= s->block_height)
av_freep(&s->blocks);
|
c2d23309 |
if (s->ver == 2) {
skip_bits(&gb, 6);
if (get_bits1(&gb)) { |
12e25ed2 |
avpriv_request_sample(avctx, "iframe"); |
c2d23309 |
return AVERROR_PATCHWELCOME;
}
if (get_bits1(&gb)) { |
12e25ed2 |
avpriv_request_sample(avctx, "Custom palette"); |
c2d23309 |
return AVERROR_PATCHWELCOME;
}
}
|
dc900310 |
/* calculate number of blocks and size of border (partial) blocks */ |
293fe6da |
h_blocks = s->image_width / s->block_width;
h_part = s->image_width % s->block_width; |
0919e788 |
v_blocks = s->image_height / s->block_height; |
293fe6da |
v_part = s->image_height % s->block_height; |
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/* the block size could change between frames, make sure the buffer
* is large enough, if not, get a larger one */ |
293fe6da |
if (s->block_size < s->block_width * s->block_height) { |
9b8d11a7 |
int tmpblock_size = 3 * s->block_width * s->block_height, err; |
c2d23309 |
|
9b8d11a7 |
if ((err = av_reallocp(&s->tmpblock, tmpblock_size)) < 0) {
s->block_size = 0; |
037fea38 |
av_log(avctx, AV_LOG_ERROR,
"Cannot allocate decompression buffer.\n"); |
9b8d11a7 |
return err; |
0919e788 |
} |
c2d23309 |
if (s->ver == 2) {
s->deflate_block_size = calc_deflate_block_size(tmpblock_size);
if (s->deflate_block_size <= 0) { |
037fea38 |
av_log(avctx, AV_LOG_ERROR,
"Cannot determine deflate buffer size.\n"); |
c2d23309 |
return -1;
} |
9b8d11a7 |
if ((err = av_reallocp(&s->deflate_block, s->deflate_block_size)) < 0) {
s->block_size = 0;
av_log(avctx, AV_LOG_ERROR, "Cannot allocate deflate buffer.\n");
return err; |
c2d23309 |
}
} |
0919e788 |
} |
293fe6da |
s->block_size = s->block_width * s->block_height; |
0919e788 |
|
dc900310 |
/* initialize the image size once */ |
cabc2938 |
if (avctx->width == 0 && avctx->height == 0) { |
6e094f70 |
if ((ret = ff_set_dimensions(avctx, s->image_width, s->image_height)) < 0)
return ret; |
0919e788 |
}
/* check for changes of image width and image height */ |
cabc2938 |
if (avctx->width != s->image_width || avctx->height != s->image_height) { |
94023020 |
av_log(avctx, AV_LOG_ERROR, |
f9a9c8f9 |
"Frame width or height differs from first frame!\n"); |
94023020 |
av_log(avctx, AV_LOG_ERROR, "fh = %d, fv %d vs ch = %d, cv = %d\n",
avctx->height, avctx->width, s->image_height, s->image_width); |
dbf5b95d |
return AVERROR_INVALIDDATA; |
0919e788 |
}
|
c2d23309 |
/* we care for keyframes only in Screen Video v2 */
s->is_keyframe = (avpkt->flags & AV_PKT_FLAG_KEY) && (s->ver == 2);
if (s->is_keyframe) { |
9b8d11a7 |
int err;
if ((err = av_reallocp(&s->keyframedata, avpkt->size)) < 0)
return err; |
c2d23309 |
memcpy(s->keyframedata, avpkt->data, avpkt->size);
} |
a084884b |
if(s->ver == 2 && !s->blocks) |
0b82fdcc |
s->blocks = av_mallocz((v_blocks + !!v_part) * (h_blocks + !!h_part) *
sizeof(s->blocks[0])); |
c2d23309 |
|
9b576e4d |
av_dlog(avctx, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n",
s->image_width, s->image_height, s->block_width, s->block_height,
h_blocks, v_blocks, h_part, v_part); |
0919e788 |
|
92cbd775 |
if ((ret = ff_reget_buffer(avctx, s->frame)) < 0) |
759001c5 |
return ret; |
0919e788 |
/* loop over all block columns */ |
293fe6da |
for (j = 0; j < v_blocks + (v_part ? 1 : 0); j++) { |
0919e788 |
|
91fe7769 |
int y_pos = j * s->block_height; // vertical position in frame
int cur_blk_height = (j < v_blocks) ? s->block_height : v_part; |
0919e788 |
/* loop over all block rows */ |
293fe6da |
for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) { |
91fe7769 |
int x_pos = i * s->block_width; // horizontal position in frame
int cur_blk_width = (i < h_blocks) ? s->block_width : h_part; |
c2d23309 |
int has_diff = 0; |
0919e788 |
/* get the size of the compressed zlib chunk */
int size = get_bits(&gb, 16); |
c2d23309 |
s->color_depth = 0;
s->zlibprime_curr = 0;
s->zlibprime_prev = 0;
s->diff_start = 0;
s->diff_height = cur_blk_height;
|
b8fb21e9 |
if (8 * size > get_bits_left(&gb)) { |
042aec41 |
av_frame_unref(s->frame); |
dbf5b95d |
return AVERROR_INVALIDDATA; |
b8fb21e9 |
} |
0919e788 |
|
c2d23309 |
if (s->ver == 2 && size) {
skip_bits(&gb, 3);
s->color_depth = get_bits(&gb, 2);
has_diff = get_bits1(&gb);
s->zlibprime_curr = get_bits1(&gb);
s->zlibprime_prev = get_bits1(&gb);
if (s->color_depth != 0 && s->color_depth != 2) {
av_log(avctx, AV_LOG_ERROR, |
037fea38 |
"%dx%d invalid color depth %d\n",
i, j, s->color_depth); |
4b7f4908 |
return AVERROR_INVALIDDATA; |
c2d23309 |
}
if (has_diff) { |
5ae72f54 |
if (!s->keyframe) {
av_log(avctx, AV_LOG_ERROR, |
037fea38 |
"Inter frame without keyframe\n"); |
5ae72f54 |
return AVERROR_INVALIDDATA;
} |
c2d23309 |
s->diff_start = get_bits(&gb, 8);
s->diff_height = get_bits(&gb, 8); |
880c73cd |
if (s->diff_start + s->diff_height > cur_blk_height) { |
57070b14 |
av_log(avctx, AV_LOG_ERROR,
"Block parameters invalid: %d + %d > %d\n",
s->diff_start, s->diff_height, cur_blk_height); |
880c73cd |
return AVERROR_INVALIDDATA;
} |
c2d23309 |
av_log(avctx, AV_LOG_DEBUG,
"%dx%d diff start %d height %d\n",
i, j, s->diff_start, s->diff_height);
size -= 2;
}
if (s->zlibprime_prev)
av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_prev\n", i, j);
if (s->zlibprime_curr) {
int col = get_bits(&gb, 8);
int row = get_bits(&gb, 8); |
037fea38 |
av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_curr %dx%d\n",
i, j, col, row); |
c2d23309 |
size -= 2; |
12e25ed2 |
avpriv_request_sample(avctx, "zlibprime_curr"); |
c2d23309 |
return AVERROR_PATCHWELCOME;
} |
3ae69b91 |
if (!s->blocks && (s->zlibprime_curr || s->zlibprime_prev)) { |
037fea38 |
av_log(avctx, AV_LOG_ERROR,
"no data available for zlib priming\n"); |
3ae69b91 |
return AVERROR_INVALIDDATA;
} |
c2d23309 |
size--; // account for flags byte
}
if (has_diff) {
int k; |
042aec41 |
int off = (s->image_height - y_pos - 1) * s->frame->linesize[0]; |
c2d23309 |
|
4a64e679 |
for (k = 0; k < cur_blk_height; k++) { |
042aec41 |
int x = off - k * s->frame->linesize[0] + x_pos * 3;
memcpy(s->frame->data[0] + x, s->keyframe + x, |
c2d23309 |
cur_blk_width * 3); |
4a64e679 |
} |
c2d23309 |
}
|
39884ab0 |
/* skip unchanged blocks, which have size 0 */
if (size) { |
b8783b98 |
if (flashsv_decode_block(avctx, avpkt, &gb, size,
cur_blk_width, cur_blk_height, |
c2d23309 |
x_pos, y_pos,
i + j * (h_blocks + !!h_part))) |
94023020 |
av_log(avctx, AV_LOG_ERROR, |
b8783b98 |
"error in decompression of block %dx%d\n", i, j); |
0919e788 |
}
}
} |
c2d23309 |
if (s->is_keyframe && s->ver == 2) {
if (!s->keyframe) { |
042aec41 |
s->keyframe = av_malloc(s->frame->linesize[0] * avctx->height); |
c2d23309 |
if (!s->keyframe) {
av_log(avctx, AV_LOG_ERROR, "Cannot allocate image data\n");
return AVERROR(ENOMEM);
}
} |
042aec41 |
memcpy(s->keyframe, s->frame->data[0],
s->frame->linesize[0] * avctx->height); |
c2d23309 |
} |
0919e788 |
|
042aec41 |
if ((ret = av_frame_ref(data, s->frame)) < 0) |
759001c5 |
return ret;
|
df9b9567 |
*got_frame = 1; |
0919e788 |
|
293fe6da |
if ((get_bits_count(&gb) / 8) != buf_size) |
0919e788 |
av_log(avctx, AV_LOG_ERROR, "buffer not fully consumed (%d != %d)\n", |
293fe6da |
buf_size, (get_bits_count(&gb) / 8)); |
0919e788 |
/* report that the buffer was completely consumed */
return buf_size;
}
|
c2d23309 |
#if CONFIG_FLASHSV_DECODER |
e7e2df27 |
AVCodec ff_flashsv_decoder = { |
46cb2da1 |
.name = "flashsv", |
b2bed932 |
.long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v1"), |
46cb2da1 |
.type = AVMEDIA_TYPE_VIDEO, |
36ef5369 |
.id = AV_CODEC_ID_FLASHSV, |
46cb2da1 |
.priv_data_size = sizeof(FlashSVContext),
.init = flashsv_decode_init,
.close = flashsv_decode_end,
.decode = flashsv_decode_frame,
.capabilities = CODEC_CAP_DR1, |
037fea38 |
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE }, |
0919e788 |
}; |
c2d23309 |
#endif /* CONFIG_FLASHSV_DECODER */
#if CONFIG_FLASHSV2_DECODER
static const uint32_t ff_flashsv2_default_palette[128] = {
0x000000, 0x333333, 0x666666, 0x999999, 0xCCCCCC, 0xFFFFFF,
0x330000, 0x660000, 0x990000, 0xCC0000, 0xFF0000, 0x003300,
0x006600, 0x009900, 0x00CC00, 0x00FF00, 0x000033, 0x000066,
0x000099, 0x0000CC, 0x0000FF, 0x333300, 0x666600, 0x999900,
0xCCCC00, 0xFFFF00, 0x003333, 0x006666, 0x009999, 0x00CCCC,
0x00FFFF, 0x330033, 0x660066, 0x990099, 0xCC00CC, 0xFF00FF,
0xFFFF33, 0xFFFF66, 0xFFFF99, 0xFFFFCC, 0xFF33FF, 0xFF66FF,
0xFF99FF, 0xFFCCFF, 0x33FFFF, 0x66FFFF, 0x99FFFF, 0xCCFFFF,
0xCCCC33, 0xCCCC66, 0xCCCC99, 0xCCCCFF, 0xCC33CC, 0xCC66CC,
0xCC99CC, 0xCCFFCC, 0x33CCCC, 0x66CCCC, 0x99CCCC, 0xFFCCCC,
0x999933, 0x999966, 0x9999CC, 0x9999FF, 0x993399, 0x996699,
0x99CC99, 0x99FF99, 0x339999, 0x669999, 0xCC9999, 0xFF9999,
0x666633, 0x666699, 0x6666CC, 0x6666FF, 0x663366, 0x669966,
0x66CC66, 0x66FF66, 0x336666, 0x996666, 0xCC6666, 0xFF6666,
0x333366, 0x333399, 0x3333CC, 0x3333FF, 0x336633, 0x339933,
0x33CC33, 0x33FF33, 0x663333, 0x993333, 0xCC3333, 0xFF3333,
0x003366, 0x336600, 0x660033, 0x006633, 0x330066, 0x663300,
0x336699, 0x669933, 0x993366, 0x339966, 0x663399, 0x996633,
0x6699CC, 0x99CC66, 0xCC6699, 0x66CC99, 0x9966CC, 0xCC9966,
0x99CCFF, 0xCCFF99, 0xFF99CC, 0x99FFCC, 0xCC99FF, 0xFFCC99,
0x111111, 0x222222, 0x444444, 0x555555, 0xAAAAAA, 0xBBBBBB,
0xDDDDDD, 0xEEEEEE
};
static av_cold int flashsv2_decode_init(AVCodecContext *avctx)
{
FlashSVContext *s = avctx->priv_data;
flashsv_decode_init(avctx);
s->pal = ff_flashsv2_default_palette;
s->ver = 2;
return 0;
}
static av_cold int flashsv2_decode_end(AVCodecContext *avctx)
{
FlashSVContext *s = avctx->priv_data;
av_freep(&s->keyframedata);
av_freep(&s->blocks);
av_freep(&s->keyframe);
av_freep(&s->deflate_block);
flashsv_decode_end(avctx);
return 0;
}
AVCodec ff_flashsv2_decoder = {
.name = "flashsv2", |
b2bed932 |
.long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v2"), |
c2d23309 |
.type = AVMEDIA_TYPE_VIDEO, |
36ef5369 |
.id = AV_CODEC_ID_FLASHSV2, |
c2d23309 |
.priv_data_size = sizeof(FlashSVContext),
.init = flashsv2_decode_init,
.close = flashsv2_decode_end,
.decode = flashsv_decode_frame,
.capabilities = CODEC_CAP_DR1, |
037fea38 |
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE }, |
c2d23309 |
};
#endif /* CONFIG_FLASHSV2_DECODER */ |