diff options
Diffstat (limited to 'libavcodec/a64multienc.c')
| -rw-r--r-- | libavcodec/a64multienc.c | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/libavcodec/a64multienc.c b/libavcodec/a64multienc.c index 786074fea5..306777418d 100644 --- a/libavcodec/a64multienc.c +++ b/libavcodec/a64multienc.c @@ -2,20 +2,20 @@ * a64 video encoder - multicolor modes * Copyright (c) 2009 Tobias Bindhammer * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -24,7 +24,6 @@ * a64 video encoder - multicolor modes */ -#include "a64enc.h" #include "a64colors.h" #include "a64tables.h" #include "elbg.h" @@ -37,6 +36,28 @@ #define INTERLACED 1 #define CROP_SCREENS 1 +#define C64XRES 320 +#define C64YRES 200 + +typedef struct A64Context { + /* variables for multicolor modes */ + AVLFG randctx; + int mc_lifetime; + int mc_use_5col; + unsigned mc_frame_counter; + int *mc_meta_charset; + int *mc_charmap; + int *mc_best_cb; + int mc_luma_vals[5]; + uint8_t *mc_charset; + uint8_t *mc_colram; + uint8_t *mc_palette; + int mc_pal_size; + + /* pts of the next packet that will be output */ + int64_t next_pts; +} A64Context; + /* gray gradient */ static const int mc_colors[5]={0x0,0xb,0xc,0xf,0x1}; @@ -199,9 +220,9 @@ static av_cold int a64multi_encode_init(AVCodecContext *avctx) a64_palette[mc_colors[a]][2] * 0.11; } - if (!(c->mc_meta_charset = av_malloc(32000 * c->mc_lifetime * sizeof(int))) || + if (!(c->mc_meta_charset = av_malloc_array(c->mc_lifetime, 32000 * 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_charmap = av_mallocz_array(c->mc_lifetime, 1000 * sizeof(int))) || !(c->mc_colram = av_mallocz(CHARSET_CHARS * sizeof(uint8_t))) || !(c->mc_charset = av_malloc(0x800 * (INTERLACED+1) * sizeof(uint8_t)))) { av_log(avctx, AV_LOG_ERROR, "Failed to allocate buffer memory.\n"); @@ -260,7 +281,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt, int b_width; int req_size, ret; - uint8_t *buf; + uint8_t *buf = NULL; int *charmap = c->mc_charmap; uint8_t *colram = c->mc_colram; @@ -314,15 +335,13 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt, /* 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); + if ((ret = ff_alloc_packet2(avctx, pkt, req_size)) < 0) 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); + avpriv_init_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb, CHARSET_CHARS, 50, charmap, &c->randctx); + avpriv_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); @@ -376,6 +395,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt, return 0; } +#if CONFIG_A64MULTI_ENCODER AVCodec ff_a64multi_encoder = { .name = "a64multi", .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"), @@ -388,7 +408,8 @@ AVCodec ff_a64multi_encoder = { .pix_fmts = (const enum AVPixelFormat[]) {AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE}, .capabilities = CODEC_CAP_DELAY, }; - +#endif +#if CONFIG_A64MULTI5_ENCODER AVCodec ff_a64multi5_encoder = { .name = "a64multi5", .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"), @@ -401,3 +422,4 @@ AVCodec ff_a64multi5_encoder = { .pix_fmts = (const enum AVPixelFormat[]) {AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE}, .capabilities = CODEC_CAP_DELAY, }; +#endif |