X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_05%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Fwc3movie.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_05%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Fwc3movie.c;h=0000000000000000000000000000000000000000;hb=6fa8f2f38d4b0b35f8539bf94e27ae27015c7689;hp=16e4412681dc1db577037086b8dd2a94d2f111ca;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavformat/wc3movie.c b/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavformat/wc3movie.c deleted file mode 100644 index 16e4412..0000000 --- a/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavformat/wc3movie.c +++ /dev/null @@ -1,411 +0,0 @@ -/* - * Wing Commander III Movie (.mve) File Demuxer - * Copyright (c) 2003 The ffmpeg Project - * - * This library 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 of the License, or (at your option) any later version. - * - * This library 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 this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/** - * @file wc3movie.c - * Wing Commander III Movie file demuxer - * by Mike Melanson (melanson@pcisys.net) - * for more information on the WC3 .mve file format, visit: - * http://www.pcisys.net/~melanson/codecs/ - */ - -#include "avformat.h" - -#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0]) -#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \ - (((uint8_t*)(x))[2] << 16) | \ - (((uint8_t*)(x))[1] << 8) | \ - ((uint8_t*)(x))[0]) -#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1]) -#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \ - (((uint8_t*)(x))[1] << 16) | \ - (((uint8_t*)(x))[2] << 8) | \ - ((uint8_t*)(x))[3]) - -#define WC3_PREAMBLE_SIZE 8 - -#define FOURCC_TAG( ch0, ch1, ch2, ch3 ) \ - ( (long)(unsigned char)(ch0) | \ - ( (long)(unsigned char)(ch1) << 8 ) | \ - ( (long)(unsigned char)(ch2) << 16 ) | \ - ( (long)(unsigned char)(ch3) << 24 ) ) - -#define FORM_TAG FOURCC_TAG('F', 'O', 'R', 'M') -#define MOVE_TAG FOURCC_TAG('M', 'O', 'V', 'E') -#define _PC__TAG FOURCC_TAG('_', 'P', 'C', '_') -#define SOND_TAG FOURCC_TAG('S', 'O', 'N', 'D') -#define BNAM_TAG FOURCC_TAG('B', 'N', 'A', 'M') -#define SIZE_TAG FOURCC_TAG('S', 'I', 'Z', 'E') -#define PALT_TAG FOURCC_TAG('P', 'A', 'L', 'T') -#define INDX_TAG FOURCC_TAG('I', 'N', 'D', 'X') -#define BRCH_TAG FOURCC_TAG('B', 'R', 'C', 'H') -#define SHOT_TAG FOURCC_TAG('S', 'H', 'O', 'T') -#define VGA__TAG FOURCC_TAG('V', 'G', 'A', ' ') -#define TEXT_TAG FOURCC_TAG('T', 'E', 'X', 'T') -#define AUDI_TAG FOURCC_TAG('A', 'U', 'D', 'I') - -/* video resolution unless otherwise specified */ -#define WC3_DEFAULT_WIDTH 320 -#define WC3_DEFAULT_HEIGHT 165 - -/* always use the same PCM audio parameters */ -#define WC3_SAMPLE_RATE 22050 -#define WC3_AUDIO_CHANNELS 1 -#define WC3_AUDIO_BITS 16 - -/* nice, constant framerate */ -#define WC3_FRAME_PTS_INC (90000 / 15) - -#define PALETTE_SIZE (256 * 3) -#define PALETTE_COUNT 256 - -typedef struct Wc3DemuxContext { - int width; - int height; - unsigned char *palettes; - int palette_count; - int64_t pts; - int video_stream_index; - int audio_stream_index; - - AVPaletteControl palette_control; - -} Wc3DemuxContext; - -/* bizarre palette lookup table */ -static const unsigned char wc3_pal_lookup[] = { - 0x00, 0x03, 0x05, 0x07, 0x09, 0x0B, 0x0D, 0x0E, - 0x10, 0x12, 0x13, 0x15, 0x16, 0x18, 0x19, 0x1A, - 0x1C, 0x1D, 0x1F, 0x20, 0x21, 0x23, 0x24, 0x25, - 0x27, 0x28, 0x29, 0x2A, 0x2C, 0x2D, 0x2E, 0x2F, - 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x38, 0x39, - 0x3A, 0x3B, 0x3C, 0x3D, 0x3F, 0x40, 0x41, 0x42, - 0x43, 0x44, 0x45, 0x46, 0x48, 0x49, 0x4A, 0x4B, - 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, - 0x54, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, - 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, - 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, - 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, - 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, - 0x7D, 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, - 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, - 0x8C, 0x8D, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92, - 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x99, - 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, - 0xA2, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, - 0xA9, 0xAA, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0xB2, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, - 0xB7, 0xB8, 0xB9, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, - 0xBE, 0xBF, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, - 0xC5, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, - 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD0, 0xD1, - 0xD2, 0xD3, 0xD4, 0xD5, 0xD5, 0xD6, 0xD7, 0xD8, - 0xD9, 0xDA, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE4, 0xE5, - 0xE6, 0xE7, 0xE8, 0xE9, 0xE9, 0xEA, 0xEB, 0xEC, - 0xED, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF1, 0xF2, - 0xF3, 0xF4, 0xF5, 0xF6, 0xF6, 0xF7, 0xF8, 0xF9, - 0xFA, 0xFA, 0xFB, 0xFC, 0xFD, 0xFD, 0xFD, 0xFD -}; - - -static int wc3_probe(AVProbeData *p) -{ - if (p->buf_size < 12) - return 0; - - if ((LE_32(&p->buf[0]) != FORM_TAG) || - (LE_32(&p->buf[8]) != MOVE_TAG)) - return 0; - - return AVPROBE_SCORE_MAX; -} - -static int wc3_read_header(AVFormatContext *s, - AVFormatParameters *ap) -{ - Wc3DemuxContext *wc3 = (Wc3DemuxContext *)s->priv_data; - ByteIOContext *pb = &s->pb; - unsigned int fourcc_tag; - unsigned int size; - AVStream *st; - unsigned char preamble[WC3_PREAMBLE_SIZE]; - int ret = 0; - int current_palette = 0; - int bytes_to_read; - int i; - unsigned char rotate; - - /* default context members */ - wc3->width = WC3_DEFAULT_WIDTH; - wc3->height = WC3_DEFAULT_HEIGHT; - wc3->palettes = NULL; - wc3->palette_count = 0; - wc3->pts = 0; - wc3->video_stream_index = wc3->audio_stream_index = 0; - - /* skip the first 3 32-bit numbers */ - url_fseek(pb, 12, SEEK_CUR); - - /* traverse through the chunks and load the header information before - * the first BRCH tag */ - if ((ret = get_buffer(pb, preamble, WC3_PREAMBLE_SIZE)) != - WC3_PREAMBLE_SIZE) - return -EIO; - fourcc_tag = LE_32(&preamble[0]); - size = (BE_32(&preamble[4]) + 1) & (~1); - - do { - switch (fourcc_tag) { - - case SOND_TAG: - case INDX_TAG: - /* SOND unknown, INDX unnecessary; ignore both */ - url_fseek(pb, size, SEEK_CUR); - break; - - case _PC__TAG: - /* need the number of palettes */ - url_fseek(pb, 8, SEEK_CUR); - if ((ret = get_buffer(pb, preamble, 4)) != 4) - return -EIO; - wc3->palette_count = LE_32(&preamble[0]); - wc3->palettes = av_malloc(wc3->palette_count * PALETTE_SIZE); - break; - - case BNAM_TAG: - /* load up the name */ - if (size < 512) - bytes_to_read = size; - else - bytes_to_read = 512; - if ((ret = get_buffer(pb, s->title, bytes_to_read)) != bytes_to_read) - return -EIO; - break; - - case SIZE_TAG: - /* video resolution override */ - if ((ret = get_buffer(pb, preamble, WC3_PREAMBLE_SIZE)) != - WC3_PREAMBLE_SIZE) - return -EIO; - wc3->width = LE_32(&preamble[0]); - wc3->height = LE_32(&preamble[4]); - break; - - case PALT_TAG: - /* one of several palettes */ - if (current_palette >= wc3->palette_count) - return AVERROR_INVALIDDATA; - if ((ret = get_buffer(pb, - &wc3->palettes[current_palette * PALETTE_SIZE], - PALETTE_SIZE)) != PALETTE_SIZE) - return -EIO; - - /* transform the current palette in place */ - for (i = current_palette * PALETTE_SIZE; - i < (current_palette + 1) * PALETTE_SIZE; i++) { - /* rotate each palette component left by 2 and use the result - * as an index into the color component table */ - rotate = ((wc3->palettes[i] << 2) & 0xFF) | - ((wc3->palettes[i] >> 6) & 0xFF); - wc3->palettes[i] = wc3_pal_lookup[rotate]; - } - current_palette++; - break; - - default: - printf (" unrecognized WC3 chunk: %c%c%c%c (0x%02X%02X%02X%02X)\n", - preamble[0], preamble[1], preamble[2], preamble[3], - preamble[0], preamble[1], preamble[2], preamble[3]); - return AVERROR_INVALIDDATA; - break; - } - - if ((ret = get_buffer(pb, preamble, WC3_PREAMBLE_SIZE)) != - WC3_PREAMBLE_SIZE) - return -EIO; - fourcc_tag = LE_32(&preamble[0]); - /* chunk sizes are 16-bit aligned */ - size = (BE_32(&preamble[4]) + 1) & (~1); - - } while (fourcc_tag != BRCH_TAG); - - /* initialize the decoder streams */ - st = av_new_stream(s, 0); - if (!st) - return AVERROR_NOMEM; - wc3->video_stream_index = st->index; - st->codec.codec_type = CODEC_TYPE_VIDEO; - st->codec.codec_id = CODEC_ID_XAN_WC3; - st->codec.codec_tag = 0; /* no fourcc */ - st->codec.width = wc3->width; - st->codec.height = wc3->height; - - /* palette considerations */ - st->codec.extradata_size = sizeof(AVPaletteControl); - st->codec.extradata = &wc3->palette_control; - - st = av_new_stream(s, 0); - if (!st) - return AVERROR_NOMEM; - wc3->audio_stream_index = st->index; - st->codec.codec_type = CODEC_TYPE_AUDIO; - st->codec.codec_id = CODEC_ID_PCM_S16LE; - st->codec.codec_tag = 1; - st->codec.channels = WC3_AUDIO_CHANNELS; - st->codec.bits_per_sample = WC3_AUDIO_BITS; - st->codec.sample_rate = WC3_SAMPLE_RATE; - st->codec.bit_rate = st->codec.channels * st->codec.sample_rate * - st->codec.bits_per_sample; - st->codec.block_align = WC3_AUDIO_BITS * WC3_AUDIO_CHANNELS; - - /* set the pts reference (1 pts = 1/90000) */ - s->pts_num = 1; - s->pts_den = 90000; - - return 0; -} - -static int wc3_read_packet(AVFormatContext *s, - AVPacket *pkt) -{ - Wc3DemuxContext *wc3 = (Wc3DemuxContext *)s->priv_data; - ByteIOContext *pb = &s->pb; - unsigned int fourcc_tag; - unsigned int size; - int packet_read = 0; - int ret = 0; - unsigned char preamble[WC3_PREAMBLE_SIZE]; - unsigned char text[1024]; - unsigned int palette_number; - - while (!packet_read) { - - /* get the next chunk preamble */ - if ((ret = get_buffer(pb, preamble, WC3_PREAMBLE_SIZE)) != - WC3_PREAMBLE_SIZE) - ret = -EIO; - - fourcc_tag = LE_32(&preamble[0]); - /* chunk sizes are 16-bit aligned */ - size = (BE_32(&preamble[4]) + 1) & (~1); - - switch (fourcc_tag) { - - case BRCH_TAG: - /* no-op */ - break; - - case SHOT_TAG: - /* load up new palette */ - if ((ret = get_buffer(pb, preamble, 4)) != 4) - return -EIO; - palette_number = LE_32(&preamble[0]); - if (palette_number >= wc3->palette_count) - return AVERROR_INVALIDDATA; - memcpy(wc3->palette_control.palette, - &wc3->palettes[palette_number * PALETTE_COUNT * 3], - PALETTE_COUNT * 3); - wc3->palette_control.palette_changed = 1; - break; - - case VGA__TAG: - /* send out video chunk */ - if (av_new_packet(pkt, size)) - ret = -EIO; - pkt->stream_index = wc3->video_stream_index; - pkt->pts = wc3->pts; - ret = get_buffer(pb, pkt->data, size); - if (ret != size) - ret = -EIO; - packet_read = 1; - break; - - case TEXT_TAG: - /* subtitle chunk */ -#if 0 - url_fseek(pb, size, SEEK_CUR); -#else - if ((ret = get_buffer(pb, text, size)) != size) - ret = -EIO; - else { - int i = 0; - printf ("Subtitle time!\n"); - printf (" inglish: %s\n", &text[i + 1]); - i += text[i] + 1; - printf (" doytsch: %s\n", &text[i + 1]); - i += text[i] + 1; - printf (" fronsay: %s\n", &text[i + 1]); - } -#endif - break; - - case AUDI_TAG: - /* send out audio chunk */ - if (av_new_packet(pkt, size)) - ret = -EIO; - pkt->stream_index = wc3->audio_stream_index; - pkt->pts = wc3->pts; - ret = get_buffer(pb, pkt->data, size); - if (ret != size) - ret = -EIO; - - /* time to advance pts */ - wc3->pts += WC3_FRAME_PTS_INC; - - packet_read = 1; - break; - - default: - printf (" unrecognized WC3 chunk: %c%c%c%c (0x%02X%02X%02X%02X)\n", - preamble[0], preamble[1], preamble[2], preamble[3], - preamble[0], preamble[1], preamble[2], preamble[3]); - ret = AVERROR_INVALIDDATA; - packet_read = 1; - break; - } - } - - return ret; -} - -static int wc3_read_close(AVFormatContext *s) -{ - Wc3DemuxContext *wc3 = (Wc3DemuxContext *)s->priv_data; - - av_free(wc3->palettes); - - return 0; -} - -static AVInputFormat wc3_iformat = { - "wc3movie", - "Wing Commander III movie format", - sizeof(Wc3DemuxContext), - wc3_probe, - wc3_read_header, - wc3_read_packet, - wc3_read_close, -}; - -int wc3_init(void) -{ - av_register_input_format(&wc3_iformat); - return 0; -}