Unified · Split
| @@ -6,6 +6,7 @@ version <next>: · 5 unmodified lines | |||
| 6 | - XWD encoder and decoder | 6 | - XWD encoder and decoder |
| 7 | - Support for fragmentation in the mov/mp4 muxer | 7 | - Support for fragmentation in the mov/mp4 muxer |
| 8 | - ISMV (Smooth Streaming) muxer | 8 | - ISMV (Smooth Streaming) muxer |
| 9 | - CDXL demuxer and decoder | ||
| 9 | 10 | ||
| 10 | 11 | ||
| 11 | version 0.8: | 12 | version 0.8: |
| @@ -131,6 +131,8 @@ library: · 130 unmodified lines | |||
| 131 | @tab Multimedia format used by Delphine Software games. | 131 | @tab Multimedia format used by Delphine Software games. |
| 132 | @item CD+G @tab @tab X | 132 | @item CD+G @tab @tab X |
| 133 | @tab Video format used by CD+G karaoke disks | 133 | @tab Video format used by CD+G karaoke disks |
| 134 | @item Commodore CDXL @tab @tab X | ||
| 135 | @tab Amiga CD video format | ||
| 134 | @item Core Audio Format @tab @tab X | 136 | @item Core Audio Format @tab @tab X |
| 135 | @tab Apple Core Audio Format | 137 | @tab Apple Core Audio Format |
| 136 | @item CRC testing format @tab X @tab | 138 | @item CRC testing format @tab X @tab |
| @@ -435,6 +437,8 @@ following image formats are supported: · 298 unmodified lines | |||
| 435 | @tab fourcc: CSCD | 437 | @tab fourcc: CSCD |
| 436 | @item CD+G @tab @tab X | 438 | @item CD+G @tab @tab X |
| 437 | @tab Video codec for CD+G karaoke disks | 439 | @tab Video codec for CD+G karaoke disks |
| 440 | @item CDXL @tab @tab X | ||
| 441 | @tab Amiga CD video codec | ||
| 438 | @item Chinese AVS video @tab E @tab X | 442 | @item Chinese AVS video @tab E @tab X |
| 439 | @tab AVS1-P2, JiZhun profile, encoding through external library libxavs | 443 | @tab AVS1-P2, JiZhun profile, encoding through external library libxavs |
| 440 | @item Delphine Software International CIN video @tab @tab X | 444 | @item Delphine Software International CIN video @tab @tab X |
| @@ -102,6 +102,7 @@ OBJS-$(CONFIG_C93_DECODER) += c93.o · 101 unmodified lines | |||
| 102 | OBJS-$(CONFIG_CAVS_DECODER) += cavs.o cavsdec.o cavsdsp.o \ | 102 | OBJS-$(CONFIG_CAVS_DECODER) += cavs.o cavsdec.o cavsdsp.o \ |
| 103 | mpeg12data.o mpegvideo.o | 103 | mpeg12data.o mpegvideo.o |
| 104 | OBJS-$(CONFIG_CDGRAPHICS_DECODER) += cdgraphics.o | 104 | OBJS-$(CONFIG_CDGRAPHICS_DECODER) += cdgraphics.o |
| 105 | OBJS-$(CONFIG_CDXL_DECODER) += cdxl.o | ||
| 105 | OBJS-$(CONFIG_CINEPAK_DECODER) += cinepak.o | 106 | OBJS-$(CONFIG_CINEPAK_DECODER) += cinepak.o |
| 106 | OBJS-$(CONFIG_CLJR_DECODER) += cljr.o | 107 | OBJS-$(CONFIG_CLJR_DECODER) += cljr.o |
| 107 | OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o | 108 | OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o |
| @@ -86,6 +86,7 @@ void avcodec_register_all(void) · 85 unmodified lines | |||
| 86 | REGISTER_DECODER (C93, c93); | 86 | REGISTER_DECODER (C93, c93); |
| 87 | REGISTER_DECODER (CAVS, cavs); | 87 | REGISTER_DECODER (CAVS, cavs); |
| 88 | REGISTER_DECODER (CDGRAPHICS, cdgraphics); | 88 | REGISTER_DECODER (CDGRAPHICS, cdgraphics); |
| 89 | REGISTER_DECODER (CDXL, cdxl); | ||
| 89 | REGISTER_DECODER (CINEPAK, cinepak); | 90 | REGISTER_DECODER (CINEPAK, cinepak); |
| 90 | REGISTER_ENCDEC (CLJR, cljr); | 91 | REGISTER_ENCDEC (CLJR, cljr); |
| 91 | REGISTER_DECODER (CSCD, cscd); | 92 | REGISTER_DECODER (CSCD, cscd); |
| @@ -244,6 +244,7 @@ enum CodecID { · 243 unmodified lines | |||
| 244 | CODEC_ID_DXTORY, | 244 | CODEC_ID_DXTORY, |
| 245 | CODEC_ID_V410, | 245 | CODEC_ID_V410, |
| 246 | CODEC_ID_XWD, | 246 | CODEC_ID_XWD, |
| 247 | CODEC_ID_CDXL, | ||
| 247 | 248 | ||
| 248 | /* various PCM "codecs" */ | 249 | /* various PCM "codecs" */ |
| 249 | CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs | 250 | CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs |
| @@ -0,0 +1,278 @@ | |||
| 1 | /* | ||
| 2 | * CDXL video decoder | ||
| 3 | * Copyright (c) 2011-2012 Paul B Mahol | ||
| 4 | * | ||
| 5 | * This file is part of Libav. | ||
| 6 | * | ||
| 7 | * Libav is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * Libav is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with Libav; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "libavutil/intreadwrite.h" | ||
| 23 | #include "libavutil/imgutils.h" | ||
| 24 | #include "avcodec.h" | ||
| 25 | #include "get_bits.h" | ||
| 26 | |||
| 27 | typedef struct { | ||
| 28 | AVCodecContext *avctx; | ||
| 29 | AVFrame frame; | ||
| 30 | int bpp; | ||
| 31 | const uint8_t *palette; | ||
| 32 | int palette_size; | ||
| 33 | const uint8_t *video; | ||
| 34 | int video_size; | ||
| 35 | uint8_t *new_video; | ||
| 36 | int new_video_size; | ||
| 37 | } CDXLVideoContext; | ||
| 38 | |||
| 39 | static av_cold int cdxl_decode_init(AVCodecContext *avctx) | ||
| 40 | { | ||
| 41 | CDXLVideoContext *c = avctx->priv_data; | ||
| 42 | |||
| 43 | avcodec_get_frame_defaults(&c->frame); | ||
| 44 | c->new_video_size = 0; | ||
| 45 | c->avctx = avctx; | ||
| 46 | |||
| 47 | return 0; | ||
| 48 | } | ||
| 49 | |||
| 50 | static void import_palette(CDXLVideoContext *c, uint32_t *new_palette) | ||
| 51 | { | ||
| 52 | int i; | ||
| 53 | |||
| 54 | for (i = 0; i < c->palette_size / 2; i++) { | ||
| 55 | unsigned rgb = AV_RB16(&c->palette[i * 2]); | ||
| 56 | unsigned r = ((rgb >> 8) & 0xF) * 0x11; | ||
| 57 | unsigned g = ((rgb >> 4) & 0xF) * 0x11; | ||
| 58 | unsigned b = (rgb & 0xF) * 0x11; | ||
| 59 | AV_WN32(&new_palette[i], (r << 16) | (g << 8) | b); | ||
| 60 | } | ||
| 61 | } | ||
| 62 | |||
| 63 | static void bitplanar2chunky(CDXLVideoContext *c, int width, | ||
| 64 | int linesize, uint8_t *out) | ||
| 65 | { | ||
| 66 | GetBitContext gb; | ||
| 67 | int x, y, plane; | ||
| 68 | |||
| 69 | init_get_bits(&gb, c->video, c->video_size * 8); | ||
| 70 | memset(out, 0, linesize * c->avctx->height); | ||
| 71 | for (plane = 0; plane < c->bpp; plane++) | ||
| 72 | for (y = 0; y < c->avctx->height; y++) | ||
| 73 | for (x = 0; x < width; x++) | ||
| 74 | out[linesize * y + x] |= get_bits1(&gb) << plane; | ||
| 75 | } | ||
| 76 | |||
| 77 | static void cdxl_decode_rgb(CDXLVideoContext *c) | ||
| 78 | { | ||
| 79 | uint32_t *new_palette = (uint32_t *)c->frame.data[1]; | ||
| 80 | int padded_width = FFALIGN(c->avctx->width, 16); | ||
| 81 | |||
| 82 | import_palette(c, new_palette); | ||
| 83 | bitplanar2chunky(c, padded_width, c->frame.linesize[0], c->frame.data[0]); | ||
| 84 | } | ||
| 85 | |||
| 86 | static void cdxl_decode_ham6(CDXLVideoContext *c) | ||
| 87 | { | ||
| 88 | AVCodecContext *avctx = c->avctx; | ||
| 89 | uint32_t new_palette[16], r, g, b; | ||
| 90 | uint8_t *ptr, *out, index, op; | ||
| 91 | int x, y; | ||
| 92 | |||
| 93 | ptr = c->new_video; | ||
| 94 | out = c->frame.data[0]; | ||
| 95 | |||
| 96 | import_palette(c, new_palette); | ||
| 97 | bitplanar2chunky(c, avctx->width, avctx->width, c->new_video); | ||
| 98 | |||
| 99 | for (y = 0; y < avctx->height; y++) { | ||
| 100 | r = new_palette[0] & 0xFF0000; | ||
| 101 | g = new_palette[0] & 0xFF00; | ||
| 102 | b = new_palette[0] & 0xFF; | ||
| 103 | for (x = 0; x < avctx->width; x++) { | ||
| 104 | index = *ptr++; | ||
| 105 | op = index >> 4; | ||
| 106 | index &= 15; | ||
| 107 | switch (op) { | ||
| 108 | case 0: | ||
| 109 | r = new_palette[index] & 0xFF0000; | ||
| 110 | g = new_palette[index] & 0xFF00; | ||
| 111 | b = new_palette[index] & 0xFF; | ||
| 112 | break; | ||
| 113 | case 1: | ||
| 114 | b = index * 0x11; | ||
| 115 | break; | ||
| 116 | case 2: | ||
| 117 | r = index * 0x11 << 16; | ||
| 118 | break; | ||
| 119 | case 3: | ||
| 120 | g = index * 0x11 << 8; | ||
| 121 | break; | ||
| 122 | } | ||
| 123 | AV_WN32(out + x * 3, r | g | b); | ||
| 124 | } | ||
| 125 | out += c->frame.linesize[0]; | ||
| 126 | } | ||
| 127 | } | ||
| 128 | |||
| 129 | static void cdxl_decode_ham8(CDXLVideoContext *c) | ||
| 130 | { | ||
| 131 | AVCodecContext *avctx = c->avctx; | ||
| 132 | uint32_t new_palette[64], r, g, b; | ||
| 133 | uint8_t *ptr, *out, index, op; | ||
| 134 | int x, y; | ||
| 135 | |||
| 136 | ptr = c->new_video; | ||
| 137 | out = c->frame.data[0]; | ||
| 138 | |||
| 139 | import_palette(c, new_palette); | ||
| 140 | bitplanar2chunky(c, avctx->width, avctx->width, c->new_video); | ||
| 141 | |||
| 142 | for (y = 0; y < avctx->height; y++) { | ||
| 143 | r = new_palette[0] & 0xFF0000; | ||
| 144 | g = new_palette[0] & 0xFF00; | ||
| 145 | b = new_palette[0] & 0xFF; | ||
| 146 | for (x = 0; x < avctx->width; x++) { | ||
| 147 | index = *ptr++; | ||
| 148 | op = index >> 6; | ||
| 149 | index &= 63; | ||
| 150 | switch (op) { | ||
| 151 | case 0: | ||
| 152 | r = new_palette[index] & 0xFF0000; | ||
| 153 | g = new_palette[index] & 0xFF00; | ||
| 154 | b = new_palette[index] & 0xFF; | ||
| 155 | break; | ||
| 156 | case 1: | ||
| 157 | b = (index << 2) | (b & 3); | ||
| 158 | break; | ||
| 159 | case 2: | ||
| 160 | r = (index << 18) | (r & (3 << 16)); | ||
| 161 | break; | ||
| 162 | case 3: | ||
| 163 | g = (index << 10) | (g & (3 << 8)); | ||
| 164 | break; | ||
| 165 | } | ||
| 166 | AV_WN32(out + x * 3, r | g | b); | ||
| 167 | } | ||
| 168 | out += c->frame.linesize[0]; | ||
| 169 | } | ||
| 170 | } | ||
| 171 | |||
| 172 | static int cdxl_decode_frame(AVCodecContext *avctx, void *data, | ||
| 173 | int *data_size, AVPacket *pkt) | ||
| 174 | { | ||
| 175 | CDXLVideoContext *c = avctx->priv_data; | ||
| 176 | AVFrame * const p = &c->frame; | ||
| 177 | int ret, w, h, encoding, format, buf_size = pkt->size; | ||
| 178 | const uint8_t *buf = pkt->data; | ||
| 179 | |||
| 180 | if (buf_size < 32) | ||
| 181 | return AVERROR_INVALIDDATA; | ||
| 182 | encoding = buf[1] & 7; | ||
| 183 | format = buf[1] & 0xE0; | ||
| 184 | w = AV_RB16(&buf[14]); | ||
| 185 | h = AV_RB16(&buf[16]); | ||
| 186 | c->bpp = buf[19]; | ||
| 187 | c->palette_size = AV_RB16(&buf[20]); | ||
| 188 | c->palette = buf + 32; | ||
| 189 | c->video = c->palette + c->palette_size; | ||
| 190 | c->video_size = buf_size - c->palette_size - 32; | ||
| 191 | |||
| 192 | if (c->palette_size > 512) | ||
| 193 | return AVERROR_INVALIDDATA; | ||
| 194 | if (buf_size < c->palette_size + 32) | ||
| 195 | return AVERROR_INVALIDDATA; | ||
| 196 | if (c->bpp < 1) | ||
| 197 | return AVERROR_INVALIDDATA; | ||
| 198 | if (c->bpp > 8) { | ||
| 199 | av_log_ask_for_sample(avctx, "unsupported pixel size: %d\n", c->bpp); | ||
| 200 | return AVERROR_PATCHWELCOME; | ||
| 201 | } | ||
| 202 | if (format) { | ||
| 203 | av_log_ask_for_sample(avctx, "unsupported pixel format: %d\n", format); | ||
| 204 | return AVERROR_PATCHWELCOME; | ||
| 205 | } | ||
| 206 | |||
| 207 | if ((ret = av_image_check_size(w, h, 0, avctx)) < 0) | ||
| 208 | return ret; | ||
| 209 | if (w != avctx->width || h != avctx->height) | ||
| 210 | avcodec_set_dimensions(avctx, w, h); | ||
| 211 | |||
| 212 | if (encoding == 0) { | ||
| 213 | if (c->video_size < FFALIGN(avctx->width, 16) * | ||
| 214 | avctx->height * c->bpp / 8) | ||
| 215 | return AVERROR_INVALIDDATA; | ||
| 216 | avctx->pix_fmt = PIX_FMT_PAL8; | ||
| 217 | } else if (encoding == 1 && (c->bpp == 6 || c->bpp == 8)) { | ||
| 218 | if (c->palette_size != (1 << (c->bpp - 1))) | ||
| 219 | return AVERROR_INVALIDDATA; | ||
| 220 | if (c->video_size < avctx->width * avctx->height * c->bpp / 8) | ||
| 221 | return AVERROR_INVALIDDATA; | ||
| 222 | avctx->pix_fmt = PIX_FMT_BGR24; | ||
| 223 | } else { | ||
| 224 | av_log_ask_for_sample(avctx, "unsupported encoding %d and bpp %d\n", | ||
| 225 | encoding, c->bpp); | ||
| 226 | return AVERROR_PATCHWELCOME; | ||
| 227 | } | ||
| 228 | |||
| 229 | if (p->data[0]) | ||
| 230 | avctx->release_buffer(avctx, p); | ||
| 231 | |||
| 232 | p->reference = 0; | ||
| 233 | if ((ret = avctx->get_buffer(avctx, p)) < 0) { | ||
| 234 | av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); | ||
| 235 | return ret; | ||
| 236 | } | ||
| 237 | p->pict_type = AV_PICTURE_TYPE_I; | ||
| 238 | |||
| 239 | if (encoding) { | ||
| 240 | av_fast_padded_malloc(&c->new_video, &c->new_video_size, | ||
| 241 | h * w + FF_INPUT_BUFFER_PADDING_SIZE); | ||
| 242 | if (!c->new_video) | ||
| 243 | return AVERROR(ENOMEM); | ||
| 244 | if (c->bpp == 8) | ||
| 245 | cdxl_decode_ham8(c); | ||
| 246 | else | ||
| 247 | cdxl_decode_ham6(c); | ||
| 248 | } else { | ||
| 249 | cdxl_decode_rgb(c); | ||
| 250 | } | ||
| 251 | *data_size = sizeof(AVFrame); | ||
| 252 | *(AVFrame*)data = c->frame; | ||
| 253 | |||
| 254 | return buf_size; | ||
| 255 | } | ||
| 256 | |||
| 257 | static av_cold int cdxl_decode_end(AVCodecContext *avctx) | ||
| 258 | { | ||
| 259 | CDXLVideoContext *c = avctx->priv_data; | ||
| 260 | |||
| 261 | av_free(c->new_video); | ||
| 262 | if (c->frame.data[0]) | ||
| 263 | avctx->release_buffer(avctx, &c->frame); | ||
| 264 | |||
| 265 | return 0; | ||
| 266 | } | ||
| 267 | |||
| 268 | AVCodec ff_cdxl_decoder = { | ||
| 269 | .name = "cdxl", | ||
| 270 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 271 | .id = CODEC_ID_CDXL, | ||
| 272 | .priv_data_size = sizeof(CDXLVideoContext), | ||
| 273 | .init = cdxl_decode_init, | ||
| 274 | .close = cdxl_decode_end, | ||
| 275 | .decode = cdxl_decode_frame, | ||
| 276 | .capabilities = CODEC_CAP_DR1, | ||
| 277 | .long_name = NULL_IF_CONFIG_SMALL("Commodore CDXL video"), | ||
| 278 | }; | ||
| @@ -21,7 +21,7 @@ · 20 unmodified lines | |||
| 21 | #define AVCODEC_VERSION_H | 21 | #define AVCODEC_VERSION_H |
| 22 | 22 | ||
| 23 | #define LIBAVCODEC_VERSION_MAJOR 54 | 23 | #define LIBAVCODEC_VERSION_MAJOR 54 |
| 24 | #define LIBAVCODEC_VERSION_MINOR 0 | 24 | #define LIBAVCODEC_VERSION_MINOR 1 |
| 25 | #define LIBAVCODEC_VERSION_MICRO 0 | 25 | #define LIBAVCODEC_VERSION_MICRO 0 |
| 26 | 26 | ||
| 27 | #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ | 27 | #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ |
| @@ -55,6 +55,7 @@ OBJS-$(CONFIG_CAF_DEMUXER) += cafdec.o caf.o mov.o mov_chan.o \ · 54 unmodified lines | |||
| 55 | OBJS-$(CONFIG_CAVSVIDEO_DEMUXER) += cavsvideodec.o rawdec.o | 55 | OBJS-$(CONFIG_CAVSVIDEO_DEMUXER) += cavsvideodec.o rawdec.o |
| 56 | OBJS-$(CONFIG_CAVSVIDEO_MUXER) += rawenc.o | 56 | OBJS-$(CONFIG_CAVSVIDEO_MUXER) += rawenc.o |
| 57 | OBJS-$(CONFIG_CDG_DEMUXER) += cdg.o | 57 | OBJS-$(CONFIG_CDG_DEMUXER) += cdg.o |
| 58 | OBJS-$(CONFIG_CDXL_DEMUXER) += cdxl.o | ||
| 58 | OBJS-$(CONFIG_CRC_MUXER) += crcenc.o | 59 | OBJS-$(CONFIG_CRC_MUXER) += crcenc.o |
| 59 | OBJS-$(CONFIG_DAUD_DEMUXER) += daud.o | 60 | OBJS-$(CONFIG_DAUD_DEMUXER) += daud.o |
| 60 | OBJS-$(CONFIG_DAUD_MUXER) += daud.o | 61 | OBJS-$(CONFIG_DAUD_MUXER) += daud.o |
| @@ -76,6 +76,7 @@ void av_register_all(void) · 75 unmodified lines | |||
| 76 | REGISTER_DEMUXER (CAF, caf); | 76 | REGISTER_DEMUXER (CAF, caf); |
| 77 | REGISTER_MUXDEMUX (CAVSVIDEO, cavsvideo); | 77 | REGISTER_MUXDEMUX (CAVSVIDEO, cavsvideo); |
| 78 | REGISTER_DEMUXER (CDG, cdg); | 78 | REGISTER_DEMUXER (CDG, cdg); |
| 79 | REGISTER_DEMUXER (CDXL, cdxl); | ||
| 79 | REGISTER_MUXER (CRC, crc); | 80 | REGISTER_MUXER (CRC, crc); |
| 80 | REGISTER_MUXDEMUX (DAUD, daud); | 81 | REGISTER_MUXDEMUX (DAUD, daud); |
| 81 | REGISTER_DEMUXER (DFA, dfa); | 82 | REGISTER_DEMUXER (DFA, dfa); |
| @@ -0,0 +1,170 @@ | |||
| 1 | /* | ||
| 2 | * CDXL demuxer | ||
| 3 | * Copyright (c) 2011-2012 Paul B Mahol | ||
| 4 | * | ||
| 5 | * This file is part of Libav. | ||
| 6 | * | ||
| 7 | * Libav is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * Libav is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with Libav; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "libavutil/intreadwrite.h" | ||
| 23 | #include "libavutil/parseutils.h" | ||
| 24 | #include "libavutil/opt.h" | ||
| 25 | #include "avformat.h" | ||
| 26 | #include "internal.h" | ||
| 27 | |||
| 28 | #define CDXL_HEADER_SIZE 32 | ||
| 29 | |||
| 30 | typedef struct CDXLDemuxContext { | ||
| 31 | AVClass *class; | ||
| 32 | int sample_rate; | ||
| 33 | char *framerate; | ||
| 34 | AVRational fps; | ||
| 35 | int read_chunk; | ||
| 36 | uint8_t header[CDXL_HEADER_SIZE]; | ||
| 37 | int video_stream_index; | ||
| 38 | int audio_stream_index; | ||
| 39 | } CDXLDemuxContext; | ||
| 40 | |||
| 41 | static int cdxl_read_header(AVFormatContext *s) | ||
| 42 | { | ||
| 43 | CDXLDemuxContext *cdxl = s->priv_data; | ||
| 44 | int ret; | ||
| 45 | |||
| 46 | if ((ret = av_parse_video_rate(&cdxl->fps, cdxl->framerate)) < 0) { | ||
| 47 | av_log(s, AV_LOG_ERROR, | ||
| 48 | "Could not parse framerate: %s.\n", cdxl->framerate); | ||
| 49 | return ret; | ||
| 50 | } | ||
| 51 | |||
| 52 | cdxl->read_chunk = 0; | ||
| 53 | cdxl->video_stream_index = -1; | ||
| 54 | cdxl->audio_stream_index = -1; | ||
| 55 | |||
| 56 | s->ctx_flags |= AVFMTCTX_NOHEADER; | ||
| 57 | |||
| 58 | return 0; | ||
| 59 | } | ||
| 60 | |||
| 61 | static int cdxl_read_packet(AVFormatContext *s, AVPacket *pkt) | ||
| 62 | { | ||
| 63 | CDXLDemuxContext *cdxl = s->priv_data; | ||
| 64 | AVIOContext *pb = s->pb; | ||
| 65 | uint32_t current_size; | ||
| 66 | uint16_t audio_size, palette_size; | ||
| 67 | int32_t video_size; | ||
| 68 | int64_t pos; | ||
| 69 | int ret; | ||
| 70 | |||
| 71 | if (pb->eof_reached) | ||
| 72 | return AVERROR_EOF; | ||
| 73 | |||
| 74 | pos = avio_tell(pb); | ||
| 75 | if (!cdxl->read_chunk && | ||
| 76 | avio_read(pb, cdxl->header, CDXL_HEADER_SIZE) != CDXL_HEADER_SIZE) | ||
| 77 | return AVERROR_EOF; | ||
| 78 | if (cdxl->header[0] != 1) { | ||
| 79 | av_log(s, AV_LOG_ERROR, "non-standard cdxl file\n"); | ||
| 80 | return AVERROR_INVALIDDATA; | ||
| 81 | } | ||
| 82 | |||
| 83 | current_size = AV_RB32(&cdxl->header[2]); | ||
| 84 | palette_size = AV_RB16(&cdxl->header[20]); | ||
| 85 | audio_size = AV_RB16(&cdxl->header[22]); | ||
| 86 | |||
| 87 | if (palette_size > 512) | ||
| 88 | return AVERROR_INVALIDDATA; | ||
| 89 | if (current_size < audio_size + palette_size + CDXL_HEADER_SIZE) | ||
| 90 | return AVERROR_INVALIDDATA; | ||
| 91 | video_size = current_size - audio_size - CDXL_HEADER_SIZE; | ||
| 92 | |||
| 93 | if (cdxl->read_chunk && audio_size) { | ||
| 94 | if (cdxl->audio_stream_index == -1) { | ||
| 95 | AVStream *st = avformat_new_stream(s, NULL); | ||
| 96 | if (!st) | ||
| 97 | return AVERROR(ENOMEM); | ||
| 98 | |||
| 99 | st->codec->codec_type = AVMEDIA_TYPE_AUDIO; | ||
| 100 | st->codec->codec_tag = 0; | ||
| 101 | st->codec->codec_id = CODEC_ID_PCM_S8; | ||
| 102 | st->codec->channels = cdxl->header[1] & 0x10 ? 2 : 1; | ||
| 103 | st->codec->sample_rate = cdxl->sample_rate; | ||
| 104 | cdxl->audio_stream_index = st->index; | ||
| 105 | avpriv_set_pts_info(st, 32, 1, cdxl->sample_rate); | ||
| 106 | } | ||
| 107 | |||
| 108 | ret = av_get_packet(pb, pkt, audio_size); | ||
| 109 | if (ret < 0) | ||
| 110 | return ret; | ||
| 111 | pkt->stream_index = cdxl->audio_stream_index; | ||
| 112 | pkt->pos = pos; | ||
| 113 | pkt->duration = audio_size; | ||
| 114 | cdxl->read_chunk = 0; | ||
| 115 | } else { | ||
| 116 | if (cdxl->video_stream_index == -1) { | ||
| 117 | AVStream *st = avformat_new_stream(s, NULL); | ||
| 118 | if (!st) | ||
| 119 | return AVERROR(ENOMEM); | ||
| 120 | |||
| 121 | st->codec->codec_type = AVMEDIA_TYPE_VIDEO; | ||
| 122 | st->codec->codec_tag = 0; | ||
| 123 | st->codec->codec_id = CODEC_ID_CDXL; | ||
| 124 | st->codec->width = AV_RB16(&cdxl->header[14]); | ||
| 125 | st->codec->height = AV_RB16(&cdxl->header[16]); | ||
| 126 | cdxl->video_stream_index = st->index; | ||
| 127 | avpriv_set_pts_info(st, 63, cdxl->fps.den, cdxl->fps.num); | ||
| 128 | } | ||
| 129 | |||
| 130 | if (av_new_packet(pkt, video_size + CDXL_HEADER_SIZE) < 0) | ||
| 131 | return AVERROR(ENOMEM); | ||
| 132 | memcpy(pkt->data, cdxl->header, CDXL_HEADER_SIZE); | ||
| 133 | ret = avio_read(pb, pkt->data + CDXL_HEADER_SIZE, video_size); | ||
| 134 | if (ret < 0) { | ||
| 135 | av_free_packet(pkt); | ||
| 136 | return ret; | ||
| 137 | } | ||
| 138 | pkt->stream_index = cdxl->video_stream_index; | ||
| 139 | pkt->flags |= AV_PKT_FLAG_KEY; | ||
| 140 | pkt->pos = pos; | ||
| 141 | cdxl->read_chunk = audio_size; | ||
| 142 | } | ||
| 143 | |||
| 144 | return ret; | ||
| 145 | } | ||
| 146 | |||
| 147 | #define OFFSET(x) offsetof(CDXLDemuxContext, x) | ||
| 148 | static const AVOption cdxl_options[] = { | ||
| 149 | { "sample_rate", "", OFFSET(sample_rate), AV_OPT_TYPE_INT, { .dbl = 11025 }, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, | ||
| 150 | { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, { .str = "10" }, 0, 0, AV_OPT_FLAG_DECODING_PARAM }, | ||
| 151 | { NULL }, | ||
| 152 | }; | ||
| 153 | |||
| 154 | static const AVClass cdxl_demuxer_class = { | ||
| 155 | .class_name = "CDXL demuxer", | ||
| 156 | .item_name = av_default_item_name, | ||
| 157 | .option = cdxl_options, | ||
| 158 | .version = LIBAVUTIL_VERSION_INT, | ||
| 159 | }; | ||
| 160 | |||
| 161 | AVInputFormat ff_cdxl_demuxer = { | ||
| 162 | .name = "cdxl", | ||
| 163 | .long_name = NULL_IF_CONFIG_SMALL("Commodore CDXL video format"), | ||
| 164 | .priv_data_size = sizeof(CDXLDemuxContext), | ||
| 165 | .read_header = cdxl_read_header, | ||
| 166 | .read_packet = cdxl_read_packet, | ||
| 167 | .extensions = "cdxl,xl", | ||
| 168 | .flags = AVFMT_GENERIC_INDEX, | ||
| 169 | .priv_class = &cdxl_demuxer_class, | ||
| 170 | }; | ||
| @@ -30,7 +30,7 @@ · 29 unmodified lines | |||
| 30 | #include "libavutil/avutil.h" | 30 | #include "libavutil/avutil.h" |
| 31 | 31 | ||
| 32 | #define LIBAVFORMAT_VERSION_MAJOR 54 | 32 | #define LIBAVFORMAT_VERSION_MAJOR 54 |
| 33 | #define LIBAVFORMAT_VERSION_MINOR 0 | 33 | #define LIBAVFORMAT_VERSION_MINOR 1 |
| 34 | #define LIBAVFORMAT_VERSION_MICRO 0 | 34 | #define LIBAVFORMAT_VERSION_MICRO 0 |
| 35 | 35 | ||
| 36 | #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ | 36 | #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ |