2010-08-23 13:46:32 +02:00
|
|
|
/*
|
|
|
|
* a64 video encoder - multicolor modes
|
|
|
|
* Copyright (c) 2009 Tobias Bindhammer
|
|
|
|
*
|
|
|
|
* 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 2.1 of the License, or (at your option) any later version.
|
|
|
|
*
|
|
|
|
* 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 FFmpeg; if not, write to the Free Software
|
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @file
|
|
|
|
* a64 video encoder - multicolor modes
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "a64enc.h"
|
2010-08-24 16:02:31 +02:00
|
|
|
#include "a64colors.h"
|
2010-08-23 13:46:32 +02:00
|
|
|
#include "a64tables.h"
|
|
|
|
#include "elbg.h"
|
2012-02-23 10:21:07 +01:00
|
|
|
#include "internal.h"
|
2010-08-23 13:46:32 +02:00
|
|
|
#include "libavutil/intreadwrite.h"
|
|
|
|
|
2010-08-24 16:02:31 +02:00
|
|
|
#define DITHERSTEPS 8
|
|
|
|
#define CHARSET_CHARS 256
|
2010-08-24 17:21:27 +02:00
|
|
|
#define INTERLACED 1
|
2010-10-05 14:14:23 +02:00
|
|
|
#define CROP_SCREENS 1
|
2010-08-24 16:02:31 +02:00
|
|
|
|
|
|
|
/* gray gradient */
|
|
|
|
static const int mc_colors[5]={0x0,0xb,0xc,0xf,0x1};
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
/* other possible gradients - to be tested */
|
|
|
|
//static const int mc_colors[5]={0x0,0x8,0xa,0xf,0x7};
|
|
|
|
//static const int mc_colors[5]={0x0,0x9,0x8,0xa,0x3};
|
|
|
|
|
2010-08-23 13:46:32 +02:00
|
|
|
static void to_meta_with_crop(AVCodecContext *avctx, AVFrame *p, int *dest)
|
|
|
|
{
|
|
|
|
int blockx, blocky, x, y;
|
|
|
|
int luma = 0;
|
2010-10-05 14:14:30 +02:00
|
|
|
int height = FFMIN(avctx->height, C64YRES);
|
|
|
|
int width = FFMIN(avctx->width , C64XRES);
|
2010-08-23 13:46:32 +02:00
|
|
|
uint8_t *src = p->data[0];
|
|
|
|
|
2010-10-05 14:14:20 +02:00
|
|
|
for (blocky = 0; blocky < C64YRES; blocky += 8) {
|
2010-08-23 13:46:32 +02:00
|
|
|
for (blockx = 0; blockx < C64XRES; blockx += 8) {
|
2010-10-05 14:14:30 +02:00
|
|
|
for (y = blocky; y < blocky + 8 && y < C64YRES; y++) {
|
|
|
|
for (x = blockx; x < blockx + 8 && x < C64XRES; x += 2) {
|
2010-10-05 14:14:20 +02:00
|
|
|
if(x < width && y < height) {
|
2010-08-23 13:46:32 +02:00
|
|
|
/* build average over 2 pixels */
|
|
|
|
luma = (src[(x + 0 + y * p->linesize[0])] +
|
|
|
|
src[(x + 1 + y * p->linesize[0])]) / 2;
|
|
|
|
/* write blocks as linear data now so they are suitable for elbg */
|
|
|
|
dest[0] = luma;
|
|
|
|
}
|
|
|
|
dest++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void render_charset(AVCodecContext *avctx, uint8_t *charset,
|
|
|
|
uint8_t *colrammap)
|
|
|
|
{
|
|
|
|
A64Context *c = avctx->priv_data;
|
2010-08-24 17:21:27 +02:00
|
|
|
uint8_t row1, row2;
|
2010-08-23 13:46:32 +02:00
|
|
|
int charpos, x, y;
|
2010-08-24 16:02:31 +02:00
|
|
|
int a, b;
|
|
|
|
uint8_t pix;
|
2010-08-23 13:46:32 +02:00
|
|
|
int lowdiff, highdiff;
|
|
|
|
int *best_cb = c->mc_best_cb;
|
2010-08-24 16:02:31 +02:00
|
|
|
static uint8_t index1[256];
|
|
|
|
static uint8_t index2[256];
|
|
|
|
static uint8_t dither[256];
|
|
|
|
int i;
|
|
|
|
int distance;
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2010-08-24 16:02:31 +02:00
|
|
|
/* generate lookup-tables for dither and index before looping */
|
|
|
|
i = 0;
|
|
|
|
for (a=0; a < 256; a++) {
|
2010-10-05 14:14:30 +02:00
|
|
|
if(i < c->mc_pal_size -1 && a == c->mc_luma_vals[i + 1]) {
|
|
|
|
distance = c->mc_luma_vals[i + 1] - c->mc_luma_vals[i];
|
2010-08-24 16:02:31 +02:00
|
|
|
for(b = 0; b <= distance; b++) {
|
2010-10-05 14:14:30 +02:00
|
|
|
dither[c->mc_luma_vals[i] + b] = b * (DITHERSTEPS - 1) / distance;
|
2010-08-24 16:02:31 +02:00
|
|
|
}
|
|
|
|
i++;
|
|
|
|
}
|
2010-10-05 14:14:14 +02:00
|
|
|
if(i >= c->mc_pal_size - 1) dither[a] = 0;
|
2010-08-24 16:02:31 +02:00
|
|
|
index1[a] = i;
|
2010-10-05 14:14:30 +02:00
|
|
|
index2[a] = FFMIN(i + 1, c->mc_pal_size - 1);
|
2010-08-24 16:02:31 +02:00
|
|
|
}
|
2010-10-05 14:14:30 +02:00
|
|
|
|
2010-08-23 13:46:32 +02:00
|
|
|
/* and render charset */
|
2010-08-24 16:02:31 +02:00
|
|
|
for (charpos = 0; charpos < CHARSET_CHARS; charpos++) {
|
2010-08-23 13:46:32 +02:00
|
|
|
lowdiff = 0;
|
|
|
|
highdiff = 0;
|
|
|
|
for (y = 0; y < 8; y++) {
|
2010-08-24 17:21:27 +02:00
|
|
|
row1 = 0; row2 = 0;
|
2010-08-23 13:46:32 +02:00
|
|
|
for (x = 0; x < 4; x++) {
|
|
|
|
pix = best_cb[y * 4 + x];
|
|
|
|
|
2010-08-24 16:02:31 +02:00
|
|
|
/* accumulate error for brightest/darkest color */
|
|
|
|
if (index1[pix] >= 3)
|
|
|
|
highdiff += pix - c->mc_luma_vals[3];
|
|
|
|
if (index1[pix] < 1)
|
|
|
|
lowdiff += c->mc_luma_vals[1] - pix;
|
2010-08-23 13:46:32 +02:00
|
|
|
|
|
|
|
row1 <<= 2;
|
2010-08-24 16:02:31 +02:00
|
|
|
|
2010-10-05 14:14:30 +02:00
|
|
|
if (INTERLACED) {
|
2010-08-24 17:21:27 +02:00
|
|
|
row2 <<= 2;
|
|
|
|
if (interlaced_dither_patterns[dither[pix]][(y & 3) * 2 + 0][x & 3])
|
|
|
|
row1 |= 3-(index2[pix] & 3);
|
|
|
|
else
|
|
|
|
row1 |= 3-(index1[pix] & 3);
|
|
|
|
|
|
|
|
if (interlaced_dither_patterns[dither[pix]][(y & 3) * 2 + 1][x & 3])
|
|
|
|
row2 |= 3-(index2[pix] & 3);
|
|
|
|
else
|
|
|
|
row2 |= 3-(index1[pix] & 3);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
if (multi_dither_patterns[dither[pix]][(y & 3)][x & 3])
|
|
|
|
row1 |= 3-(index2[pix] & 3);
|
|
|
|
else
|
|
|
|
row1 |= 3-(index1[pix] & 3);
|
|
|
|
}
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
2010-08-24 16:02:31 +02:00
|
|
|
charset[y+0x000] = row1;
|
2010-10-05 14:14:30 +02:00
|
|
|
if (INTERLACED) charset[y+0x800] = row2;
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
2010-08-24 16:02:31 +02:00
|
|
|
/* do we need to adjust pixels? */
|
2010-10-05 14:14:27 +02:00
|
|
|
if (highdiff > 0 && lowdiff > 0 && c->mc_use_5col) {
|
2010-08-23 13:46:32 +02:00
|
|
|
if (lowdiff > highdiff) {
|
|
|
|
for (x = 0; x < 32; x++)
|
2010-08-24 16:02:31 +02:00
|
|
|
best_cb[x] = FFMIN(c->mc_luma_vals[3], best_cb[x]);
|
2010-08-23 13:46:32 +02:00
|
|
|
} else {
|
|
|
|
for (x = 0; x < 32; x++)
|
2010-08-24 16:02:31 +02:00
|
|
|
best_cb[x] = FFMAX(c->mc_luma_vals[1], best_cb[x]);
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
2010-08-24 16:02:31 +02:00
|
|
|
charpos--; /* redo now adjusted char */
|
|
|
|
/* no adjustment needed, all fine */
|
2010-08-23 13:46:32 +02:00
|
|
|
} else {
|
|
|
|
/* advance pointers */
|
|
|
|
best_cb += 32;
|
|
|
|
charset += 8;
|
|
|
|
|
2010-08-24 16:02:31 +02:00
|
|
|
/* remember colorram value */
|
2010-08-24 17:21:27 +02:00
|
|
|
colrammap[charpos] = (highdiff > 0);
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int a64multi_close_encoder(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
A64Context *c = avctx->priv_data;
|
|
|
|
av_free(c->mc_meta_charset);
|
|
|
|
av_free(c->mc_best_cb);
|
2010-08-24 16:02:31 +02:00
|
|
|
av_free(c->mc_charset);
|
2010-08-24 17:21:27 +02:00
|
|
|
av_free(c->mc_charmap);
|
|
|
|
av_free(c->mc_colram);
|
2010-08-23 13:46:32 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int a64multi_init_encoder(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
A64Context *c = avctx->priv_data;
|
2010-08-24 16:02:31 +02:00
|
|
|
int a;
|
2010-08-23 13:46:32 +02:00
|
|
|
av_lfg_init(&c->randctx, 1);
|
|
|
|
|
|
|
|
if (avctx->global_quality < 1) {
|
|
|
|
c->mc_lifetime = 4;
|
|
|
|
} else {
|
|
|
|
c->mc_lifetime = avctx->global_quality /= FF_QP2LAMBDA;
|
|
|
|
}
|
|
|
|
|
|
|
|
av_log(avctx, AV_LOG_INFO, "charset lifetime set to %d frame(s)\n", c->mc_lifetime);
|
|
|
|
|
2010-10-05 14:14:14 +02:00
|
|
|
c->mc_frame_counter = 0;
|
|
|
|
c->mc_use_5col = avctx->codec->id == CODEC_ID_A64_MULTI5;
|
|
|
|
c->mc_pal_size = 4 + c->mc_use_5col;
|
|
|
|
|
2010-08-24 16:02:31 +02:00
|
|
|
/* precalc luma values for later use */
|
2010-10-05 14:14:14 +02:00
|
|
|
for (a = 0; a < c->mc_pal_size; a++) {
|
2010-08-24 16:02:31 +02:00
|
|
|
c->mc_luma_vals[a]=a64_palette[mc_colors[a]][0] * 0.30 +
|
|
|
|
a64_palette[mc_colors[a]][1] * 0.59 +
|
|
|
|
a64_palette[mc_colors[a]][2] * 0.11;
|
|
|
|
}
|
|
|
|
|
2010-10-05 14:14:30 +02:00
|
|
|
if (!(c->mc_meta_charset = av_malloc(32000 * c->mc_lifetime * sizeof(int))) ||
|
|
|
|
!(c->mc_best_cb = av_malloc(CHARSET_CHARS * 32 * sizeof(int))) ||
|
|
|
|
!(c->mc_charmap = av_mallocz(1000 * c->mc_lifetime * sizeof(int))) ||
|
|
|
|
!(c->mc_colram = av_mallocz(CHARSET_CHARS * sizeof(uint8_t))) ||
|
|
|
|
!(c->mc_charset = av_malloc(0x800 * (INTERLACED+1) * sizeof(uint8_t)))) {
|
2010-08-31 09:14:47 +02:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to allocate buffer memory.\n");
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2010-08-26 12:02:59 +02:00
|
|
|
/* set up extradata */
|
2010-10-05 14:14:30 +02:00
|
|
|
if (!(avctx->extradata = av_mallocz(8 * 4 + FF_INPUT_BUFFER_PADDING_SIZE))) {
|
2010-08-31 09:14:47 +02:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to allocate memory for extradata.\n");
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2010-08-26 12:02:59 +02:00
|
|
|
avctx->extradata_size = 8 * 4;
|
|
|
|
AV_WB32(avctx->extradata, c->mc_lifetime);
|
2010-10-05 14:14:30 +02:00
|
|
|
AV_WB32(avctx->extradata + 16, INTERLACED);
|
2010-08-26 12:02:59 +02:00
|
|
|
|
2010-08-23 13:46:32 +02:00
|
|
|
avcodec_get_frame_defaults(&c->picture);
|
|
|
|
avctx->coded_frame = &c->picture;
|
2011-04-28 01:40:44 +02:00
|
|
|
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
|
2010-08-23 13:46:32 +02:00
|
|
|
avctx->coded_frame->key_frame = 1;
|
|
|
|
if (!avctx->codec_tag)
|
|
|
|
avctx->codec_tag = AV_RL32("a64m");
|
|
|
|
|
2012-02-23 10:21:07 +01:00
|
|
|
c->next_pts = AV_NOPTS_VALUE;
|
|
|
|
|
2010-08-23 13:46:32 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
static void a64_compress_colram(unsigned char *buf, int *charmap, uint8_t *colram)
|
|
|
|
{
|
|
|
|
int a;
|
|
|
|
uint8_t temp;
|
|
|
|
/* only needs to be done in 5col mode */
|
|
|
|
/* XXX could be squeezed to 0x80 bytes */
|
|
|
|
for (a = 0; a < 256; a++) {
|
|
|
|
temp = colram[charmap[a + 0x000]] << 0;
|
|
|
|
temp |= colram[charmap[a + 0x100]] << 1;
|
|
|
|
temp |= colram[charmap[a + 0x200]] << 2;
|
2010-10-05 14:14:30 +02:00
|
|
|
if (a < 0xe8) temp |= colram[charmap[a + 0x300]] << 3;
|
2010-08-24 17:21:27 +02:00
|
|
|
buf[a] = temp << 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-02-23 10:21:07 +01:00
|
|
|
static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
|
|
|
const AVFrame *pict, int *got_packet)
|
2010-08-23 13:46:32 +02:00
|
|
|
{
|
|
|
|
A64Context *c = avctx->priv_data;
|
|
|
|
AVFrame *const p = (AVFrame *) & c->picture;
|
|
|
|
|
|
|
|
int frame;
|
2010-10-05 14:14:23 +02:00
|
|
|
int x, y;
|
|
|
|
int b_height;
|
|
|
|
int b_width;
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2012-02-23 10:21:07 +01:00
|
|
|
int req_size, ret;
|
2012-02-25 02:41:42 +01:00
|
|
|
uint8_t *buf = NULL;
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2010-10-05 14:14:30 +02:00
|
|
|
int *charmap = c->mc_charmap;
|
|
|
|
uint8_t *colram = c->mc_colram;
|
|
|
|
uint8_t *charset = c->mc_charset;
|
|
|
|
int *meta = c->mc_meta_charset;
|
|
|
|
int *best_cb = c->mc_best_cb;
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2010-08-26 12:02:59 +02:00
|
|
|
int charset_size = 0x800 * (INTERLACED + 1);
|
|
|
|
int colram_size = 0x100 * c->mc_use_5col;
|
2010-10-05 14:14:30 +02:00
|
|
|
int screen_size;
|
2010-08-26 12:02:59 +02:00
|
|
|
|
2010-10-05 14:14:23 +02:00
|
|
|
if(CROP_SCREENS) {
|
|
|
|
b_height = FFMIN(avctx->height,C64YRES) >> 3;
|
|
|
|
b_width = FFMIN(avctx->width ,C64XRES) >> 3;
|
|
|
|
screen_size = b_width * b_height;
|
|
|
|
} else {
|
|
|
|
b_height = C64YRES >> 3;
|
|
|
|
b_width = C64XRES >> 3;
|
|
|
|
screen_size = 0x400;
|
|
|
|
}
|
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
/* no data, means end encoding asap */
|
2012-02-23 10:21:07 +01:00
|
|
|
if (!pict) {
|
2010-08-24 17:21:27 +02:00
|
|
|
/* all done, end encoding */
|
2010-10-05 14:14:30 +02:00
|
|
|
if (!c->mc_lifetime) return 0;
|
2010-08-24 17:21:27 +02:00
|
|
|
/* no more frames in queue, prepare to flush remaining frames */
|
2010-10-05 14:14:30 +02:00
|
|
|
if (!c->mc_frame_counter) {
|
|
|
|
c->mc_lifetime = 0;
|
2010-08-24 17:21:27 +02:00
|
|
|
}
|
|
|
|
/* still frames in queue so limit lifetime to remaining frames */
|
2010-10-05 14:14:30 +02:00
|
|
|
else c->mc_lifetime = c->mc_frame_counter;
|
2010-08-24 17:21:27 +02:00
|
|
|
/* still new data available */
|
2010-10-05 14:14:30 +02:00
|
|
|
} else {
|
2010-08-24 17:21:27 +02:00
|
|
|
/* fill up mc_meta_charset with data until lifetime exceeds */
|
|
|
|
if (c->mc_frame_counter < c->mc_lifetime) {
|
|
|
|
*p = *pict;
|
2011-04-28 01:40:44 +02:00
|
|
|
p->pict_type = AV_PICTURE_TYPE_I;
|
2010-08-24 17:21:27 +02:00
|
|
|
p->key_frame = 1;
|
|
|
|
to_meta_with_crop(avctx, p, meta + 32000 * c->mc_frame_counter);
|
|
|
|
c->mc_frame_counter++;
|
2012-02-23 10:21:07 +01:00
|
|
|
if (c->next_pts == AV_NOPTS_VALUE)
|
|
|
|
c->next_pts = pict->pts;
|
2010-08-24 17:21:27 +02:00
|
|
|
/* lifetime is not reached so wait for next frame first */
|
|
|
|
return 0;
|
|
|
|
}
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
/* lifetime reached so now convert X frames at once */
|
|
|
|
if (c->mc_frame_counter == c->mc_lifetime) {
|
2010-08-25 13:47:50 +02:00
|
|
|
req_size = 0;
|
2010-08-24 17:21:27 +02:00
|
|
|
/* any frames to encode? */
|
2010-10-05 14:14:30 +02:00
|
|
|
if (c->mc_lifetime) {
|
2012-02-23 10:21:07 +01:00
|
|
|
req_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
|
|
|
|
if ((ret = ff_alloc_packet(pkt, req_size)) < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", req_size);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
buf = pkt->data;
|
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
/* calc optimal new charset + charmaps */
|
|
|
|
ff_init_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb, CHARSET_CHARS, 50, charmap, &c->randctx);
|
|
|
|
ff_do_elbg (meta, 32, 1000 * c->mc_lifetime, best_cb, CHARSET_CHARS, 50, charmap, &c->randctx);
|
|
|
|
|
|
|
|
/* create colorram map and a c64 readable charset */
|
|
|
|
render_charset(avctx, charset, colram);
|
|
|
|
|
2010-08-25 13:47:47 +02:00
|
|
|
/* copy charset to buf */
|
2012-02-23 10:21:07 +01:00
|
|
|
memcpy(buf, charset, charset_size);
|
2010-08-25 13:47:47 +02:00
|
|
|
|
|
|
|
/* advance pointers */
|
2010-08-26 12:03:06 +02:00
|
|
|
buf += charset_size;
|
|
|
|
charset += charset_size;
|
2010-08-24 17:21:27 +02:00
|
|
|
}
|
2010-08-23 13:46:32 +02:00
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
/* write x frames to buf */
|
2010-08-23 13:46:32 +02:00
|
|
|
for (frame = 0; frame < c->mc_lifetime; frame++) {
|
2010-08-25 13:47:47 +02:00
|
|
|
/* copy charmap to buf. buf is uchar*, charmap is int*, so no memcpy here, sorry */
|
2010-10-05 14:14:23 +02:00
|
|
|
for (y = 0; y < b_height; y++) {
|
|
|
|
for (x = 0; x < b_width; x++) {
|
|
|
|
buf[y * b_width + x] = charmap[y * b_width + x];
|
|
|
|
}
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
2010-08-25 13:47:47 +02:00
|
|
|
/* advance pointers */
|
2010-08-26 12:03:06 +02:00
|
|
|
buf += screen_size;
|
|
|
|
req_size += screen_size;
|
2010-08-24 17:21:27 +02:00
|
|
|
|
2010-08-25 13:47:47 +02:00
|
|
|
/* compress and copy colram to buf */
|
2010-10-05 14:14:30 +02:00
|
|
|
if (c->mc_use_5col) {
|
|
|
|
a64_compress_colram(buf, charmap, colram);
|
2010-08-25 13:47:47 +02:00
|
|
|
/* advance pointers */
|
2010-08-26 12:03:06 +02:00
|
|
|
buf += colram_size;
|
|
|
|
req_size += colram_size;
|
2010-08-24 17:21:27 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* advance to next charmap */
|
2010-08-23 13:46:32 +02:00
|
|
|
charmap += 1000;
|
|
|
|
}
|
2010-08-24 17:21:27 +02:00
|
|
|
|
2010-10-05 14:14:30 +02:00
|
|
|
AV_WB32(avctx->extradata + 4, c->mc_frame_counter);
|
|
|
|
AV_WB32(avctx->extradata + 8, charset_size);
|
|
|
|
AV_WB32(avctx->extradata + 12, screen_size + colram_size);
|
2010-08-26 12:02:59 +02:00
|
|
|
|
2010-08-24 17:21:27 +02:00
|
|
|
/* reset counter */
|
|
|
|
c->mc_frame_counter = 0;
|
|
|
|
|
2012-02-23 10:21:07 +01:00
|
|
|
pkt->pts = pkt->dts = c->next_pts;
|
|
|
|
c->next_pts = AV_NOPTS_VALUE;
|
|
|
|
|
|
|
|
pkt->size = req_size;
|
|
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
|
|
*got_packet = !!req_size;
|
2010-08-23 13:46:32 +02:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-01-25 22:40:11 +01:00
|
|
|
AVCodec ff_a64multi_encoder = {
|
2010-08-23 13:46:32 +02:00
|
|
|
.name = "a64multi",
|
2010-08-24 16:02:31 +02:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2010-08-23 13:46:32 +02:00
|
|
|
.id = CODEC_ID_A64_MULTI,
|
|
|
|
.priv_data_size = sizeof(A64Context),
|
|
|
|
.init = a64multi_init_encoder,
|
2012-02-23 10:21:07 +01:00
|
|
|
.encode2 = a64multi_encode_frame,
|
2010-08-23 13:46:32 +02:00
|
|
|
.close = a64multi_close_encoder,
|
2011-01-15 23:34:49 +01:00
|
|
|
.pix_fmts = (const enum PixelFormat[]) {PIX_FMT_GRAY8, PIX_FMT_NONE},
|
2010-08-23 13:46:32 +02:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"),
|
|
|
|
.capabilities = CODEC_CAP_DELAY,
|
|
|
|
};
|
|
|
|
|
2011-01-25 22:40:11 +01:00
|
|
|
AVCodec ff_a64multi5_encoder = {
|
2010-08-23 13:46:32 +02:00
|
|
|
.name = "a64multi5",
|
2010-08-24 16:02:31 +02:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2010-08-23 13:46:32 +02:00
|
|
|
.id = CODEC_ID_A64_MULTI5,
|
|
|
|
.priv_data_size = sizeof(A64Context),
|
|
|
|
.init = a64multi_init_encoder,
|
2012-02-23 10:21:07 +01:00
|
|
|
.encode2 = a64multi_encode_frame,
|
2010-08-23 13:46:32 +02:00
|
|
|
.close = a64multi_close_encoder,
|
2011-01-15 23:34:49 +01:00
|
|
|
.pix_fmts = (const enum PixelFormat[]) {PIX_FMT_GRAY8, PIX_FMT_NONE},
|
2010-08-23 13:46:32 +02:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"),
|
|
|
|
.capabilities = CODEC_CAP_DELAY,
|
|
|
|
};
|