diff options
| -rw-r--r-- | src/demuxers/demux_wc3movie.c | 276 |
1 files changed, 161 insertions, 115 deletions
diff --git a/src/demuxers/demux_wc3movie.c b/src/demuxers/demux_wc3movie.c index d50ef0469..b23af392c 100644 --- a/src/demuxers/demux_wc3movie.c +++ b/src/demuxers/demux_wc3movie.c @@ -22,7 +22,7 @@ * For more information on the MVE file format, visit: * http://www.pcisys.net/~melanson/codecs/ * - * $Id: demux_wc3movie.c,v 1.2 2002/09/01 21:16:57 tmmm Exp $ + * $Id: demux_wc3movie.c,v 1.3 2002/09/04 02:43:48 tmmm Exp $ */ #ifdef HAVE_CONFIG_H @@ -106,6 +106,42 @@ typedef struct { } demux_mve_t; +/* bizarre palette lookup table */ +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 void *demux_mve_loop (void *this_gen) { demux_mve_t *this = (demux_mve_t *) this_gen; @@ -131,135 +167,130 @@ static void *demux_mve_loop (void *this_gen) { pthread_mutex_unlock( &this->mutex ); pthread_mutex_lock( &this->mutex ); - /* traverse through the chunks */ - while (this->status == DEMUX_OK) { + /* compensate for the initial data in the file */ + current_file_pos = this->input->get_current_pos(this->input) - + this->data_start; - /* compensate for the initial data in the file */ - current_file_pos = this->input->get_current_pos(this->input) - - this->data_start; + if (this->input->read(this->input, preamble, PREAMBLE_SIZE) != + PREAMBLE_SIZE) + this->status = DEMUX_FINISHED; + else { + chunk_tag = BE_32(&preamble[0]); + /* round up to the nearest even size */ + chunk_size = (BE_32(&preamble[4]) + 1) & (~1); - if (this->input->read(this->input, preamble, PREAMBLE_SIZE) != - PREAMBLE_SIZE) - this->status = DEMUX_FINISHED; - else { - chunk_tag = BE_32(&preamble[0]); - /* round up to the nearest even size */ - chunk_size = (BE_32(&preamble[4]) + 1) & (~1); + if (chunk_tag == BRCH_TAG) { - if (chunk_tag == BRCH_TAG) { + /* empty chunk; do nothing */ - /* empty chunk; do nothing */ + } else if (chunk_tag == SHOT_TAG) { - } else if (chunk_tag == SHOT_TAG) { + /* this is the start of a new shot; send a new palette */ + if (this->input->read(this->input, preamble, 4) != 4) { + this->status = DEMUX_FINISHED; + break; + } + palette_number = LE_32(&preamble[0]); + + if (palette_number >= this->number_of_palettes) { + xine_log(this->xine, XINE_LOG_FORMAT, + _("demux_wc3movie: SHOT chunk referenced invalid palette (%d >= %d)\n"), + palette_number, this->number_of_palettes); + this->status = DEMUX_FINISHED; + break; + } - /* this is the start of a new shot; send a new palette */ - if (this->input->read(this->input, preamble, 4) != 4) { + buf = this->video_fifo->buffer_pool_alloc (this->video_fifo); + buf->decoder_flags = BUF_FLAG_SPECIAL; + buf->decoder_info[1] = BUF_SPECIAL_PALETTE; + buf->decoder_info[2] = PALETTE_SIZE; + buf->decoder_info[3] = + (unsigned int)&this->palettes[PALETTE_SIZE * palette_number]; + buf->size = 0; + buf->type = BUF_VIDEO_WC3; + this->video_fifo->put (this->video_fifo, buf); + + } else if (chunk_tag == AUDI_TAG) { + + audio_frames = + chunk_size * 8 / this->wave.wBitsPerSample / + this->wave.nChannels; + total_frames += audio_frames; + audio_pts = total_frames; + audio_pts *= 90000; + audio_pts /= this->wave.nSamplesPerSec; + + while (chunk_size) { + buf = this->audio_fifo->buffer_pool_alloc (this->audio_fifo); + buf->type = BUF_AUDIO_LPCM_LE; + buf->input_pos = current_file_pos; + buf->input_length = this->data_size; + buf->input_time = audio_pts / 90000; + buf->pts = audio_pts; + + if (chunk_size > buf->max_size) + buf->size = buf->max_size; + else + buf->size = chunk_size; + chunk_size -= buf->size; + + if (this->input->read(this->input, buf->content, buf->size) != + buf->size) { + buf->free_buffer(buf); this->status = DEMUX_FINISHED; break; } - palette_number = LE_32(&preamble[0]); - if (palette_number >= this->number_of_palettes) { - xine_log(this->xine, XINE_LOG_FORMAT, - _("demux_wc3movie: SHOT chunk referenced invalid palette (%d >= %d)\n"), - palette_number, this->number_of_palettes); - this->status = DEMUX_FINISHED; - break; - } + if (!chunk_size) + buf->decoder_flags |= BUF_FLAG_FRAME_END; + + this->audio_fifo->put (this->audio_fifo, buf); + } + } else if (chunk_tag == VGA_TAG) { + + while (chunk_size) { buf = this->video_fifo->buffer_pool_alloc (this->video_fifo); - buf->decoder_flags = BUF_FLAG_SPECIAL; - buf->decoder_info[1] = BUF_SPECIAL_PALETTE; - buf->decoder_info[2] = PALETTE_SIZE; - buf->decoder_info[3] = - (unsigned int)&this->palettes[PALETTE_SIZE * palette_number]; - buf->size = 0; buf->type = BUF_VIDEO_WC3; - this->video_fifo->put (this->video_fifo, buf); - - } else if (chunk_tag == AUDI_TAG) { - - audio_frames = - chunk_size * 8 / this->wave.wBitsPerSample / - this->wave.nChannels; - total_frames += audio_frames; - audio_pts = total_frames; - audio_pts *= 90000; - audio_pts /= this->wave.nSamplesPerSec; - - while (chunk_size) { - buf = this->audio_fifo->buffer_pool_alloc (this->audio_fifo); - buf->type = BUF_AUDIO_LPCM_LE; - buf->input_pos = current_file_pos; - buf->input_length = this->data_size; - buf->input_time = audio_pts / 90000; - buf->pts = audio_pts; - - if (chunk_size > buf->max_size) - buf->size = buf->max_size; - else - buf->size = chunk_size; - chunk_size -= buf->size; - - if (this->input->read(this->input, buf->content, buf->size) != - buf->size) { - buf->free_buffer(buf); - this->status = DEMUX_FINISHED; - break; - } - - if (!chunk_size) - buf->decoder_flags |= BUF_FLAG_FRAME_END; - - this->audio_fifo->put (this->audio_fifo, buf); + buf->input_pos = current_file_pos; + buf->input_length = this->data_size; + buf->input_time = video_pts / 90000; + buf->pts = video_pts; + + if (chunk_size > buf->max_size) + buf->size = buf->max_size; + else + buf->size = chunk_size; + chunk_size -= buf->size; + + if (this->input->read(this->input, buf->content, buf->size) != + buf->size) { + buf->free_buffer(buf); + this->status = DEMUX_FINISHED; + break; } - } else if (chunk_tag == VGA_TAG) { - - while (chunk_size) { - buf = this->video_fifo->buffer_pool_alloc (this->video_fifo); - buf->type = BUF_VIDEO_WC3; - buf->input_pos = current_file_pos; - buf->input_length = this->data_size; - buf->input_time = video_pts / 90000; - buf->pts = video_pts; - - if (chunk_size > buf->max_size) - buf->size = buf->max_size; - else - buf->size = chunk_size; - chunk_size -= buf->size; - - if (this->input->read(this->input, buf->content, buf->size) != - buf->size) { - buf->free_buffer(buf); - this->status = DEMUX_FINISHED; - break; - } - - if (!chunk_size) - buf->decoder_flags |= BUF_FLAG_FRAME_END; - - this->video_fifo->put (this->video_fifo, buf); + if (!chunk_size) + buf->decoder_flags |= BUF_FLAG_FRAME_END; - video_pts += WC3_PTS_INC; - } + this->video_fifo->put (this->video_fifo, buf); + } + video_pts += WC3_PTS_INC; - } else if (chunk_tag == TEXT_TAG) { + } else if (chunk_tag == TEXT_TAG) { - /* unhandled thus far */ - this->input->seek(this->input, chunk_size, SEEK_CUR); + /* unhandled thus far */ + this->input->seek(this->input, chunk_size, SEEK_CUR); - } else { + } else { - /* report an unknown chunk and skip it */ - printf (_("demux_wc3movie: encountered unknown chunk: %c%c%c%c\n"), - (chunk_tag >> 24) & 0xFF, - (chunk_tag >> 16) & 0xFF, - (chunk_tag >> 8) & 0xFF, - (chunk_tag >> 0) & 0xFF); - this->input->seek(this->input, chunk_size, SEEK_CUR); - } + /* report an unknown chunk and skip it */ + printf (_("demux_wc3movie: encountered unknown chunk: %c%c%c%c\n"), + (chunk_tag >> 24) & 0xFF, + (chunk_tag >> 16) & 0xFF, + (chunk_tag >> 8) & 0xFF, + (chunk_tag >> 0) & 0xFF); + this->input->seek(this->input, chunk_size, SEEK_CUR); } } } @@ -365,6 +396,8 @@ static int demux_mve_start (demux_plugin_t *this_gen, unsigned char preamble[PREAMBLE_SIZE]; unsigned char disk_palette[PALETTE_CHUNK_SIZE]; int i, j; + unsigned char r, g, b; + int temp; /* if thread is not running, initialize demuxer */ if (!this->thread_running) { @@ -416,9 +449,19 @@ static int demux_mve_start (demux_plugin_t *this_gen, /* convert and store the palette */ for (j = 0; j < PALETTE_SIZE; j++) { - this->palettes[i * 256 + j].r = disk_palette[j * 3 + 0]; - this->palettes[i * 256 + j].g = disk_palette[j * 3 + 1]; - this->palettes[i * 256 + j].b = disk_palette[j * 3 + 2]; + r = disk_palette[j * 3 + 0]; + g = disk_palette[j * 3 + 1]; + b = disk_palette[j * 3 + 2]; + /* rotate each component left by 2 */ + temp = r << 2; r = (temp & 0xff) | (temp >> 8); + r = wc3_pal_lookup[r]; + temp = g << 2; g = (temp & 0xff) | (temp >> 8); + g = wc3_pal_lookup[g]; + temp = b << 2; b = (temp & 0xff) | (temp >> 8); + b = wc3_pal_lookup[b]; + this->palettes[i * 256 + j].r = r; + this->palettes[i * 256 + j].g = g; + this->palettes[i * 256 + j].b = b; } } @@ -448,7 +491,7 @@ static int demux_mve_start (demux_plugin_t *this_gen, buf->decoder_info[0] = 0; buf->decoder_info[1] = WC3_PTS_INC; /* initial video_step */ /* You know what? Since WC3 movies are hardcoded to a resolution of - * 640x330 and the video decoder knows that, I won't even bother + * 320x165 and the video decoder knows that, I won't even bother * transmitting the video resolution. (Ordinarily, the video * resolution is transmitted to the video decoder at this stage.) */ buf->size = 0; @@ -521,7 +564,10 @@ static void demux_mve_stop (demux_plugin_t *this_gen) { xine_demux_control_end(this->xine, BUF_FLAG_END_USER); } -static void demux_mve_close (demux_plugin_t *this) { +static void demux_mve_close (demux_plugin_t *this_gen) { + demux_mve_t *this = (demux_mve_t *) this_gen; + + free(this->palettes); free(this); } |