* a64 video encoder - multicolor modes
* Copyright (c) 2009 Tobias Bindhammer
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "a64colors.h"
#include "a64tables.h"
#include "elbg.h"
+#include "internal.h"
+#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#define DITHERSTEPS 8
static av_cold int a64multi_close_encoder(AVCodecContext *avctx)
{
A64Context *c = avctx->priv_data;
+ av_frame_free(&avctx->coded_frame);
av_free(c->mc_meta_charset);
av_free(c->mc_best_cb);
av_free(c->mc_charset);
return 0;
}
-static av_cold int a64multi_init_encoder(AVCodecContext *avctx)
+static av_cold int a64multi_encode_init(AVCodecContext *avctx)
{
A64Context *c = avctx->priv_data;
int a;
av_log(avctx, AV_LOG_INFO, "charset lifetime set to %d frame(s)\n", c->mc_lifetime);
c->mc_frame_counter = 0;
- c->mc_use_5col = avctx->codec->id == CODEC_ID_A64_MULTI5;
+ c->mc_use_5col = avctx->codec->id == AV_CODEC_ID_A64_MULTI5;
c->mc_pal_size = 4 + c->mc_use_5col;
/* precalc luma values for later use */
AV_WB32(avctx->extradata, c->mc_lifetime);
AV_WB32(avctx->extradata + 16, INTERLACED);
- avcodec_get_frame_defaults(&c->picture);
- avctx->coded_frame = &c->picture;
- avctx->coded_frame->pict_type = FF_I_TYPE;
+ avctx->coded_frame = av_frame_alloc();
+ if (!avctx->coded_frame) {
+ a64multi_close_encoder(avctx);
+ return AVERROR(ENOMEM);
+ }
+
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
avctx->coded_frame->key_frame = 1;
if (!avctx->codec_tag)
avctx->codec_tag = AV_RL32("a64m");
+ c->next_pts = AV_NOPTS_VALUE;
+
return 0;
}
}
}
-static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
- int buf_size, void *data)
+static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pict, int *got_packet)
{
A64Context *c = avctx->priv_data;
- AVFrame *pict = data;
- AVFrame *const p = (AVFrame *) & c->picture;
+ AVFrame *const p = avctx->coded_frame;
int frame;
int x, y;
int b_height;
int b_width;
- int req_size;
- int num_frames = c->mc_lifetime;
+ int req_size, ret;
+ uint8_t *buf;
int *charmap = c->mc_charmap;
uint8_t *colram = c->mc_colram;
}
/* no data, means end encoding asap */
- if (!data) {
+ if (!pict) {
/* all done, end encoding */
if (!c->mc_lifetime) return 0;
/* no more frames in queue, prepare to flush remaining frames */
if (!c->mc_frame_counter) {
- num_frames = c->mc_lifetime;
c->mc_lifetime = 0;
}
/* still frames in queue so limit lifetime to remaining frames */
/* fill up mc_meta_charset with data until lifetime exceeds */
if (c->mc_frame_counter < c->mc_lifetime) {
*p = *pict;
- p->pict_type = FF_I_TYPE;
+ p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
to_meta_with_crop(avctx, p, meta + 32000 * c->mc_frame_counter);
c->mc_frame_counter++;
+ if (c->next_pts == AV_NOPTS_VALUE)
+ c->next_pts = pict->pts;
/* lifetime is not reached so wait for next frame first */
return 0;
}
req_size = 0;
/* any frames to encode? */
if (c->mc_lifetime) {
+ 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;
+
/* 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);
+ ret = ff_init_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb,
+ CHARSET_CHARS, 50, charmap, &c->randctx);
+ if (ret < 0)
+ return ret;
+ ret = ff_do_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb,
+ CHARSET_CHARS, 50, charmap, &c->randctx);
+ if (ret < 0)
+ return ret;
/* create colorram map and a c64 readable charset */
render_charset(avctx, charset, colram);
/* copy charset to buf */
- memcpy(buf,charset, charset_size);
+ memcpy(buf, charset, charset_size);
/* advance pointers */
buf += charset_size;
charset += charset_size;
- req_size += charset_size;
}
- /* no charset so clean buf */
- else memset(buf, 0, charset_size);
/* write x frames to buf */
for (frame = 0; frame < c->mc_lifetime; frame++) {
/* reset counter */
c->mc_frame_counter = 0;
- if (req_size > buf_size) {
- av_log(avctx, AV_LOG_ERROR, "buf size too small (need %d, got %d)\n", req_size, buf_size);
- return -1;
- }
- return req_size;
+ 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;
}
return 0;
}
AVCodec ff_a64multi_encoder = {
.name = "a64multi",
+ .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"),
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_A64_MULTI,
+ .id = AV_CODEC_ID_A64_MULTI,
.priv_data_size = sizeof(A64Context),
- .init = a64multi_init_encoder,
- .encode = a64multi_encode_frame,
+ .init = a64multi_encode_init,
+ .encode2 = a64multi_encode_frame,
.close = a64multi_close_encoder,
- .pix_fmts = (const enum PixelFormat[]) {PIX_FMT_GRAY8, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"),
+ .pix_fmts = (const enum AVPixelFormat[]) {AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE},
.capabilities = CODEC_CAP_DELAY,
};
AVCodec ff_a64multi5_encoder = {
.name = "a64multi5",
+ .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"),
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_A64_MULTI5,
+ .id = AV_CODEC_ID_A64_MULTI5,
.priv_data_size = sizeof(A64Context),
- .init = a64multi_init_encoder,
- .encode = a64multi_encode_frame,
+ .init = a64multi_encode_init,
+ .encode2 = a64multi_encode_frame,
.close = a64multi_close_encoder,
- .pix_fmts = (const enum PixelFormat[]) {PIX_FMT_GRAY8, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"),
+ .pix_fmts = (const enum AVPixelFormat[]) {AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE},
.capabilities = CODEC_CAP_DELAY,
};
projects / ffmpeg / blobdiff