From da80c86632109bd2ba0023154fae1b1b530e7dcd Mon Sep 17 00:00:00 2001 From: Thibaut Mattern Date: Sat, 10 Jan 2004 01:47:14 +0000 Subject: RealVideo support for the matroska demuxer. It seems to be a problem with timestamps, too many disc are detected. James Stembridge: see handle_realvideo function in demux_matroska.c CVS patchset: 6017 CVS date: 2004/01/10 01:47:14 --- src/demuxers/demux_matroska.c | 1601 +---------------------------------------- 1 file changed, 1 insertion(+), 1600 deletions(-) (limited to 'src/demuxers/demux_matroska.c') diff --git a/src/demuxers/demux_matroska.c b/src/demuxers/demux_matroska.c index fa77345f0..b974c05fe 100644 --- a/src/demuxers/demux_matroska.c +++ b/src/demuxers/demux_matroska.c @@ -1,1600 +1 @@ -/* - * Copyright (C) 2000-2003 the xine project - * - * This file is part of xine, a free video player. - * - * xine is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * xine 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * - * $Id: demux_matroska.c,v 1.5 2004/01/09 01:26:33 miguelfreitas Exp $ - * - * demultiplexer for matroska streams - * - * TODO: - * memory leaks - * seeking - * subtitles - * more codecs - * metadata - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -#include - -#define LOG_MODULE "demux_matroska" -#define LOG_VERBOSE -/* -#define LOG -*/ -#include "xine_internal.h" -#include "xineutils.h" -#include "demux.h" -#include "bswap.h" - -#include "ebml.h" -#include "matroska.h" - -#define NUM_PREVIEW_BUFFERS 10 - -#define MAX_STREAMS 128 -#define MAX_FRAMES 32 - -#define WRAP_THRESHOLD 90000 - -typedef struct { - - demux_plugin_t demux_plugin; - - xine_stream_t *stream; - - input_plugin_t *input; - - int status; - - ebml_parser_t *ebml; - - /* segment element */ - ebml_elem_t segment; - uint64_t timecode_scale; - int duration; /* in millis */ - int preview_sent; - int preview_mode; - - /* meta seek info */ - off_t seekhead_pos; - off_t info_pos; - off_t tracks_pos; - off_t chapters_pos; - off_t cues_pos; - off_t attachments_pos; - off_t tags_pos; - int has_seekhead; - int seekhead_handled; - - /* tracks */ - int num_tracks; - matroska_track_t *tracks[MAX_STREAMS]; - - /* block */ - uint8_t *block_data; - int block_data_size; - - /* current tracks */ - matroska_track_t *video_track; - matroska_track_t *audio_track; - matroska_track_t *sub_track; - - int send_newpts; - int buf_flag_seek; -} demux_matroska_t ; - -typedef struct { - - demux_class_t demux_class; - - /* class-wide, global variables here */ - - xine_t *xine; - -} demux_matroska_class_t; - - -static void check_newpts (demux_matroska_t *this, int64_t pts, - matroska_track_t *track) { - int64_t diff; - - diff = pts - track->last_pts; - - if (pts && (this->send_newpts || (track->last_pts && abs(diff)>WRAP_THRESHOLD)) ) { - int i; - - lprintf ("sending newpts %lld\n", pts); - - if (this->buf_flag_seek) { - _x_demux_control_newpts(this->stream, pts, BUF_FLAG_SEEK); - this->buf_flag_seek = 0; - } else { - _x_demux_control_newpts(this->stream, pts, 0); - } - - this->send_newpts = 0; - for (i = 0; i < this->num_tracks; i++) { - this->tracks[i]->last_pts = 0; - } - } - - if (pts) - track->last_pts = pts; - -} - - -static int parse_info(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - double duration = 0.0; /* in matroska unit */ - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_I_TIMECODESCALE: - lprintf("timecode_scale\n"); - if (!ebml_read_uint(ebml, &elem, &this->timecode_scale)) - return 0; - break; - case MATROSKA_ID_I_DURATION: { - - lprintf("duration\n"); - if (!ebml_read_float(ebml, &elem, &duration)) - return 0; - } - break; - - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - if (this->timecode_scale == 0) { - this->timecode_scale = 1000000; - } - this->duration = (int)(duration * (double)this->timecode_scale / 1000000.0); - lprintf("timecode_scale: %lld\n", this->timecode_scale); - lprintf("duration: %d\n", this->duration); - return 1; -} - - -static int parse_video_track (demux_matroska_t *this, matroska_video_track_t *vt) { - ebml_parser_t *ebml = this->ebml; - int next_level = 4; - uint64_t val; - - while (next_level == 4) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_TV_FLAGINTERLACED: - lprintf("MATROSKA_ID_TV_FLAGINTERLACED\n"); - if (!ebml_read_uint(ebml, &elem, &val)) - return 0; - vt->flag_interlaced = val; - break; - case MATROSKA_ID_TV_PIXELWIDTH: - lprintf("MATROSKA_ID_TV_PIXELWIDTH\n"); - if (!ebml_read_uint(ebml, &elem, &val)) - return 0; - vt->pixel_witdh = val; - break; - case MATROSKA_ID_TV_PIXELHEIGHT: - lprintf("MATROSKA_ID_TV_PIXELHEIGHT\n"); - if (!ebml_read_uint(ebml, &elem, &val)) - return 0; - vt->pixel_height = val; - break; - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_audio_track (demux_matroska_t *this, matroska_audio_track_t *at) { - ebml_parser_t *ebml = this->ebml; - int next_level = 4; - - while (next_level == 4) { - ebml_elem_t elem; - uint64_t val; - double fval; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_TA_SAMPLINGFREQUENCY: - lprintf("MATROSKA_ID_TA_SAMPLINGFREQUENCY\n"); - if (!ebml_read_float(ebml, &elem, &fval)) - return 0; - at->sampling_freq = (int)fval; - break; - case MATROSKA_ID_TA_OUTPUTSAMPLINGFREQUENCY: - lprintf("MATROSKA_ID_TA_OUTPUTSAMPLINGFREQUENCY\n"); - if (!ebml_read_float(ebml, &elem, &fval)) - return 0; - at->output_sampling_freq = (int)fval; - break; - case MATROSKA_ID_TA_CHANNELS: - lprintf("MATROSKA_ID_TA_CHANNELS\n"); - if (!ebml_read_uint(ebml, &elem, &val)) - return 0; - at->channels = val; - break; - case MATROSKA_ID_TA_BITDEPTH: - lprintf("MATROSKA_ID_TA_BITDEPTH\n"); - if (!ebml_read_uint(ebml, &elem, &val)) - return 0; - at->bits_per_sample = val; - break; - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static void init_codec_video(demux_matroska_t *this, matroska_track_t *track) { - buf_element_t *buf; - - buf = track->fifo->buffer_pool_alloc (track->fifo); - buf->type = track->buf_type; - - if (track->codec_private_len > buf->max_size) { - buf->size = buf->max_size; - } else { - buf->size = track->codec_private_len; - } - - if (buf->size) - xine_fast_memcpy (buf->content, track->codec_private, buf->size); - else - buf->content = NULL; - - buf->decoder_flags = BUF_FLAG_HEADER|BUF_FLAG_FRAME_END; - buf->type = track->buf_type; - buf->pts = 0; - track->fifo->put (track->fifo, buf); -} - - -static void init_codec_audio(demux_matroska_t *this, matroska_track_t *track) { - buf_element_t *buf; - - buf = track->fifo->buffer_pool_alloc (track->fifo); - - /* default param */ - buf->decoder_info[0] = 0; - buf->decoder_info[1] = 44100; - buf->decoder_info[2] = 16; - buf->decoder_info[3] = 2; - /* track param */ - if (track->audio_track) { - if (track->audio_track->sampling_freq) - buf->decoder_info[1] = track->audio_track->sampling_freq; - if (track->audio_track->bits_per_sample) - buf->decoder_info[2] = track->audio_track->bits_per_sample; - if (track->audio_track->channels) - buf->decoder_info[3] = track->audio_track->channels; - } - lprintf("%d Hz, %d bits, %d channels\n", buf->decoder_info[1], - buf->decoder_info[2], buf->decoder_info[3]); - - if (track->codec_private_len > buf->max_size) { - buf->size = buf->max_size; - } else { - buf->size = track->codec_private_len; - } - - if (buf->size) - xine_fast_memcpy (buf->content, track->codec_private, buf->size); - else - buf->content = NULL; - - buf->decoder_flags = BUF_FLAG_HEADER|BUF_FLAG_FRAME_END; - buf->type = track->buf_type; - buf->pts = 0; - track->fifo->put (track->fifo, buf); -} - - -static void init_codec_vorbis(demux_matroska_t *this, matroska_track_t *track) { - buf_element_t *buf; - uint8_t nb_lace; - int frame[3]; - int i; - uint8_t *data; - - nb_lace = track->codec_private[0]; - if (nb_lace != 2) - return; - - frame[0] = track->codec_private[1]; - frame[1] = track->codec_private[2]; - frame[2] = track->codec_private_len - frame[0] - frame[1] - 3; - - data = track->codec_private + 3; - for (i = 0; i < 3; i++) { - buf = track->fifo->buffer_pool_alloc (track->fifo); - buf->decoder_flags = BUF_FLAG_PREVIEW; - buf->type = track->buf_type; - buf->pts = 0; - buf->size = frame[i]; - - xine_fast_memcpy (buf->content, data, buf->size); - data += buf->size; - - track->fifo->put (track->fifo, buf); - } -} - - -static int parse_track_entry(demux_matroska_t *this, matroska_track_t *track) { - ebml_parser_t *ebml = this->ebml; - int next_level = 3; - - while (next_level == 3) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_TR_NUMBER: { - uint64_t num; - lprintf("TrackNumber\n"); - if (!ebml_read_uint(ebml, &elem, &num)) - return 0; - track->track_num = num; - } - break; - - case MATROSKA_ID_TR_TYPE: { - uint64_t num; - lprintf("TrackType\n"); - if (!ebml_read_uint(ebml, &elem, &num)) - return 0; - track->track_type = num; - } - break; - - case MATROSKA_ID_TR_CODECID: { - char *codec_id = malloc (elem.len + 1); - lprintf("CodecID\n"); - if (!ebml_read_ascii(ebml, &elem, codec_id)) - return 0; - codec_id[elem.len] = '\0'; - track->codec_id = codec_id; - } - break; - - case MATROSKA_ID_TR_CODECPRIVATE: { - char *codec_private = malloc (elem.len); - lprintf("CodecPrivate\n"); - if (!ebml_read_binary(ebml, &elem, codec_private)) - return 0; - track->codec_private = codec_private; - track->codec_private_len = elem.len; - } - break; - - case MATROSKA_ID_TR_LANGUAGE: { - char *language = malloc (elem.len + 1); - lprintf("Language\n"); - if (!ebml_read_ascii(ebml, &elem, language)) - return 0; - language[elem.len] = '\0'; - track->language = language; - } - break; - - case MATROSKA_ID_TV: - lprintf("Video\n"); - if (track->video_track) - return 1; - track->video_track = (matroska_video_track_t *)xine_xmalloc(sizeof(matroska_video_track_t)); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_video_track(this, track->video_track)) - return 0; - break; - - case MATROSKA_ID_TA: - lprintf("Audio\n"); - if (track->audio_track) - return 1; - track->audio_track = (matroska_audio_track_t *)xine_xmalloc(sizeof(matroska_audio_track_t)); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_audio_track(this, track->audio_track)) - return 0; - break; - - case MATROSKA_ID_TR_FLAGDEFAULT: { - uint64_t val; - - lprintf("Default\n"); - if (!ebml_read_uint(ebml, &elem, &val)) - return 0; - track->default_flag = (int)val; - } - break; - - case MATROSKA_ID_TR_UID: - case MATROSKA_ID_TR_FLAGENABLED: - case MATROSKA_ID_TR_FLAGLACING: - case MATROSKA_ID_TR_MINCACHE: - case MATROSKA_ID_TR_MAXCACHE: - case MATROSKA_ID_TR_DEFAULTDURATION: - case MATROSKA_ID_TR_TIMECODESCALE: - case MATROSKA_ID_TR_NAME: - case MATROSKA_ID_TR_CODECNAME: - case MATROSKA_ID_TR_CODECSETTINGS: - case MATROSKA_ID_TR_CODECINFOURL: - case MATROSKA_ID_TR_CODECDOWNLOADURL: - case MATROSKA_ID_TR_CODECDECODEALL: - case MATROSKA_ID_TR_OVERLAY: - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) { - return 0; - } - } - next_level = ebml_get_next_level(ebml, &elem); - } - - switch(track->track_type) { - case MATROSKA_TRACK_VIDEO: - if (!this->video_track) { - this->video_track = track; - track->fifo = this->stream->video_fifo; - } - break; - case MATROSKA_TRACK_AUDIO: - if (!this->audio_track) { - this->audio_track = track; - track->fifo = this->stream->audio_fifo; - } - break; - case MATROSKA_TRACK_SUBTITLE: - if (!this->sub_track) { - this->sub_track = track; - track->fifo = this->stream->video_fifo; - } - break; - case MATROSKA_TRACK_COMPLEX: - case MATROSKA_TRACK_LOGO: - case MATROSKA_TRACK_CONTROL: - break; - } - - xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, - "demux_matroska: Track %d, %s %s\n", - track->track_num, - (track->codec_id ? track->codec_id : ""), - (track->language ? track->language : "")); - if (track->codec_id && track->fifo) { - int init_mode = 0;; - - if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_VFW_FOURCC)) { - xine_bmiheader *bih; - - lprintf("MATROSKA_CODEC_ID_V_VFW_FOURCC\n"); - bih = (xine_bmiheader*)track->codec_private; - _x_bmiheader_le2me(bih); - - track->buf_type = _x_fourcc_to_buf_video(bih->biCompression); - - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_UNCOMPRESSED)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG4_SP)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG4_ASP)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG4_AP)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MSMPEG4V3)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG1)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG2)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV10)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV20)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV30)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV40)) { - - lprintf("MATROSKA_CODEC_ID_V_REAL_RV40\n"); - /* track->buf_type = BUF_VIDEO_RV40; */ - - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MJPEG)) { - } else if ((!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_MPEG1_L1)) || - (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_MPEG1_L2)) || - (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_MPEG1_L3))) { - lprintf("MATROSKA_CODEC_ID_A_MPEG1\n"); - track->buf_type = BUF_AUDIO_MPEG; - - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_PCM_INT_BE)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_PCM_INT_LE)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_PCM_FLOAT)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_AC3)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_DTS)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_VORBIS)) { - - lprintf("MATROSKA_CODEC_ID_A_VORBIS\n"); - track->buf_type = BUF_AUDIO_VORBIS; - init_mode = 2; - - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_ACM)) { - } else if (!strncmp(track->codec_id, MATROSKA_CODEC_ID_A_AAC, - sizeof(MATROSKA_CODEC_ID_A_AAC - 1))) { - lprintf("MATROSKA_CODEC_ID_A_AAC\n"); - track->buf_type = BUF_AUDIO_AAC; - init_mode = 1; - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_14_4)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_28_8)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_COOK)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_SIPR)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_RALF)) { - } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_ATRC)) { - } else { - lprintf("unknown codec\n"); - } - - if (track->buf_type) { - switch (init_mode) { - case 0: - init_codec_video(this, track); - break; - - case 1: - init_codec_audio(this, track); - break; - - case 2: - init_codec_vorbis(this, track); - break; - } - } - } - - return 1; -} - - -static int parse_tracks(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_TR_ENTRY: { - this->tracks[this->num_tracks] = xine_xmalloc(sizeof(matroska_track_t)); - lprintf("TrackEntry\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_track_entry(this, this->tracks[this->num_tracks])) - return 0; - this->num_tracks++; - } - break; - - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_chapters(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_cues(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_attachments(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_tags(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_ebml_uint(demux_matroska_t *this, uint8_t *data, uint64_t *num) { - uint8_t mask = 0x80; - int size = 1; - int i; - - /* compute the size of the "data len" (1-8 bytes) */ - while (size <= 8 && !(data[0] & mask)) { - size++; - mask >>= 1; - } - if (size > 8) { - off_t pos = this->input->get_current_pos(this->input); - xprintf(this->stream->xine, XINE_VERBOSITY_LOG, - "demux_matroska: Invalid Track Number at position %llu\n", pos); - return 0; - } - - *num = data[0]; - *num &= mask - 1; - - for (i = 1; i < size; i++) { - *num = (*num << 8) | data[i]; - } - return size; -} - - -static int parse_ebml_sint(demux_matroska_t *this, uint8_t *data, int64_t *num) { - uint64_t unum; - int size; - - size = parse_ebml_uint(this, data, &unum); - if (!size) - return 0; - - /* formula taken from gstreamer demuxer */ - if (unum == -1) - *num = -1; - else - *num = unum - ((1 << ((7 * size) - 1)) - 1); - - return size; -} - -static int find_track_by_id(demux_matroska_t *this, int track_num, - matroska_track_t **track) { - int i; - - *track = NULL; - for (i = 0; i < this->num_tracks; i++) { - if (this->tracks[i]->track_num == track_num) { - *track = this->tracks[i]; - return 1; - } - } - return 0; -} - -static int read_block_data (demux_matroska_t *this, int len) { - /* memory management */ - if (this->block_data_size < len) { - if (this->block_data) - this->block_data = realloc(this->block_data, len); - else - this->block_data = malloc(len); - this->block_data_size = len; - } - - /* block datas */ - if (this->input->read(this->input, this->block_data, len) != len) { - off_t pos = this->input->get_current_pos(this->input); - xprintf(this->stream->xine, XINE_VERBOSITY_LOG, - "demux_matroska: read error at position %llu\n", pos); - return 0; - } - return 1; -} - -static int parse_block (demux_matroska_t *this, uint64_t block_size, - uint64_t timecode, uint64_t duration) { - matroska_track_t *track; - int64_t track_num; - int timecode_diff; - uint8_t *data; - uint8_t flags; - int gap; - int lacing; - int num_len; - - if (!read_block_data(this, block_size)) - return 0; - - data = this->block_data; - if (!(num_len = parse_ebml_uint(this, data, &track_num))) - return 0; - data += num_len; - - timecode_diff = (int)BE_16(data); - data += 2; - - flags = *data; - data += 1; - - lprintf("track_num: %lld, timecode_diff: %d, flags: 0x%x\n", track_num, timecode_diff, flags); - - gap = flags & 1; - lacing = (flags >> 1) & 0x3; - - if (!find_track_by_id(this, (int)track_num, &track)) { - xprintf(this->stream->xine, XINE_VERBOSITY_LOG, - "demux_matroska: invalid track id: %lld\n", track_num); - return 0; - } - - if ((track == this->video_track) || - (track == this->audio_track) || - (track == this->sub_track)) { - int64_t pts; - int decoder_flags = 0; - off_t input_pos, input_len; - - pts = ((int64_t)timecode + timecode_diff) * - (int64_t)this->timecode_scale * (int64_t)90 / - (int64_t)1000000; - lprintf("pts: %lld\n", pts); - - check_newpts(this, pts, track); - - if (this->preview_mode) { - this->preview_sent++; - decoder_flags |= BUF_FLAG_PREVIEW; - } - - input_pos = this->input->get_current_pos(this->input); - input_len = this->input->get_length(this->input); - - if (lacing == MATROSKA_NO_LACING) { - int block_size_left; - lprintf("no lacing\n"); - - block_size_left = (this->block_data + block_size) - data; - lprintf("size: %d, block_size: %lld\n", block_size_left, block_size); - _x_demux_send_data(track->fifo, data, block_size_left, - pts, track->buf_type, decoder_flags, - input_pos, input_len, pts / 90, - this->duration, 0); - } else { - - int block_size_left; - uint8_t lace_num; - int frame[MAX_FRAMES]; - int i; - - /* number of laced frames */ - lace_num = *data; - data++; - lprintf("lace_num: %d\n", lace_num); - if ((lace_num + 1) > MAX_FRAMES) { - xprintf(this->stream->xine, XINE_VERBOSITY_LOG, - "demux_matroska: too many frames: %d\n", lace_num); - return 0; - } - block_size_left = this->block_data + block_size - data; - - switch (lacing) { - case MATROSKA_XIPH_LACING: { - - lprintf("xiph lacing\n"); - - /* size of each frame */ - for (i = 0; i < lace_num; i++) { - int size = 0; - while (*data == 255) { - size += *data; - data++; block_size_left--; - } - size += *data; - data++; block_size_left--; - frame[i] = size; - block_size_left -= size; - } - - /* last frame */ - frame[lace_num] = block_size_left; - } - break; - - case MATROSKA_FIXED_SIZE_LACING: - lprintf("fixed size lacing\n"); - for (i = 0; i < lace_num; i++) { - frame[i] = block_size / (lace_num + 1); - block_size_left -= frame[i]; - } - frame[lace_num] = block_size_left; - break; - - case MATROSKA_EBML_LACING: { - int64_t tmp; - - lprintf("ebml lacing\n"); - - /* size of each frame */ - if (!(num_len = parse_ebml_uint(this, data, &tmp))) - return 0; - data += num_len; block_size_left -= num_len; - frame[0] = (int) tmp; - lprintf("first frame len: %d\n", frame[0]); - block_size_left -= frame[0]; - - for (i = 1; i < lace_num; i++) { - if (!(num_len = parse_ebml_sint(this, data, &tmp))) - return 0; - - data += num_len; block_size_left -= num_len; - frame[i] = frame[i-1] + tmp; - block_size_left -= frame[i]; - } - - /* last frame */ - frame[lace_num] = block_size_left; - } - break; - default: - xprintf(this->stream->xine, XINE_VERBOSITY_LOG, - "demux_matroska: invalid lacing: %d\n", lacing); - return 0; - } - /* send each frame to the decoder */ - for (i = 0; i <= lace_num; i++) { - _x_demux_send_data(track->fifo, data, frame[i], - pts, track->buf_type, decoder_flags, - input_pos, input_len, pts / 90, - 0, 0); - data += frame[i]; - pts = 0; - } - } - } - return 1; -} - -static int parse_block_group(demux_matroska_t *this, - uint64_t timecode, uint64_t duration) { - ebml_parser_t *ebml = this->ebml; - int next_level = 3; - - while (next_level == 3) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_CL_BLOCK: - lprintf("block\n"); - if (!parse_block(this, elem.len, timecode, duration)) - return 0; - break; - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - -static int parse_cluster(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - uint64_t timecode = 0; - uint64_t duration = 0; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_CL_TIMECODE: - lprintf("timecode\n"); - if (!ebml_read_uint(ebml, &elem, &timecode)) - return 0; - break; - case MATROSKA_ID_CL_DURATION: - lprintf("duration\n"); - if (!ebml_read_uint(ebml, &elem, &duration)) - return 0; - break; - case MATROSKA_ID_CL_BLOCKGROUP: - lprintf("blockgroup\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_block_group(this, timecode, duration)) - return 0; - break; - case MATROSKA_ID_CL_BLOCK: - lprintf("block\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_seek_entry(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 3; - int has_id = 0; - int has_position = 0; - uint64_t id, pos; - - while (next_level == 3) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_S_ID: - lprintf("SeekID\n"); - if (!ebml_read_uint(ebml, &elem, &id)) - return 0; - has_id = 1; - break; - case MATROSKA_ID_S_POSITION: - lprintf("SeekPosition\n"); - if (!ebml_read_uint(ebml, &elem, &pos)) - return 0; - has_position = 1; - break; - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - if (has_id && has_position) { - - switch (id) { - case MATROSKA_ID_INFO: - lprintf("Seek Entry: Info: %lld\n", pos); - this->info_pos = this->segment.start + pos; - break; - case MATROSKA_ID_SEEKHEAD: - lprintf("Seek Entry: SeekHead: %lld\n", pos); - this->seekhead_pos = this->segment.start + pos; - break; - case MATROSKA_ID_CLUSTER: - lprintf("Seek Entry: Cluster: %lld\n", pos); - break; - case MATROSKA_ID_TRACKS: - lprintf("Seek Entry: Tracks: %lld\n", pos); - this->tracks_pos = this->segment.start + pos; - break; - case MATROSKA_ID_CUES: - lprintf("Seek Entry: Cues: %lld\n", pos); - this->cues_pos = this->segment.start + pos; - break; - case MATROSKA_ID_ATTACHMENTS: - lprintf("Seek Entry: Attachements: %lld\n", pos); - this->attachments_pos = this->segment.start + pos; - break; - case MATROSKA_ID_CHAPTERS: - lprintf("Seek Entry: Chapters: %lld\n", pos); - this->chapters_pos = this->segment.start + pos; - break; - default: - lprintf("Unhandled Seek Entry ID: 0x%llx\n", id); - } - return 1; - } else { - lprintf("incomplete Seek Entry\n"); - return 1; - } -} - - -static int parse_seekhead(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - int next_level = 2; - - this->has_seekhead = 1; - - while (next_level == 2) { - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_S_ENTRY: - lprintf("Seek\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_seek_entry(this)) - return 0; - break; - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - next_level = ebml_get_next_level(ebml, &elem); - } - return 1; -} - - -static int parse_top_level_head(demux_matroska_t *this, int *next_level) { - ebml_parser_t *ebml = this->ebml; - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_SEEKHEAD: - lprintf("SeekHead\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_seekhead(this)) - return 0; - this->has_seekhead = 1; - break; - case MATROSKA_ID_INFO: - lprintf("Info\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_info(this)) - return 0; - break; - case MATROSKA_ID_TRACKS: - lprintf("Tracks\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_tracks(this)) - return 0; - break; - case MATROSKA_ID_CHAPTERS: - lprintf("Chapters\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_chapters(this)) - return 0; - break; - case MATROSKA_ID_CLUSTER: - lprintf("Cluster\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - case MATROSKA_ID_CUES: - lprintf("Cues\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_cues(this)) - return 0; - break; - case MATROSKA_ID_ATTACHMENTS: - lprintf("Attachments\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_attachments(this)) - return 0; - break; - case MATROSKA_ID_TAGS: - lprintf("Tags\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_tags(this)) - return 0; - break; - - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - if (next_level) - *next_level = ebml_get_next_level(ebml, &elem); - return 1; -} - -static int parse_top_level(demux_matroska_t *this, int *next_level) { - ebml_parser_t *ebml = this->ebml; - ebml_elem_t elem; - - if (!ebml_read_elem_head(ebml, &elem)) - return 0; - - switch (elem.id) { - case MATROSKA_ID_SEEKHEAD: - lprintf("SeekHead\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - this->has_seekhead = 1; - break; - case MATROSKA_ID_INFO: - lprintf("Info\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - case MATROSKA_ID_TRACKS: - lprintf("Tracks\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - case MATROSKA_ID_CHAPTERS: - lprintf("Chapters\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - case MATROSKA_ID_CLUSTER: - lprintf("Cluster\n"); - if (!ebml_read_master (ebml, &elem)) - return 0; - if (!parse_cluster(this)) - return 0; - break; - case MATROSKA_ID_CUES: - lprintf("Cues\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - case MATROSKA_ID_ATTACHMENTS: - lprintf("Attachments\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - case MATROSKA_ID_TAGS: - lprintf("Tags\n"); - if (!ebml_skip(ebml, &elem)) - return 0; - break; - - default: - lprintf("Unhandled ID: 0x%x\n", elem.id); - if (!ebml_skip(ebml, &elem)) - return 0; - } - if (next_level) - *next_level = ebml_get_next_level(ebml, &elem); - return 1; -} - - -static int parse_segment(demux_matroska_t *this) { - ebml_parser_t *ebml = this->ebml; - - /* check segment id */ - if (!ebml_read_elem_head(ebml, &this->segment)) - return 0; - - if (this->segment.id == MATROSKA_ID_SEGMENT) { - int next_level; - - lprintf("Segment\n"); - - if (!ebml_read_master (ebml, &this->segment)) - return 0; - - next_level = 1; - while (next_level == 1) { - if (!parse_top_level_head(this, &next_level)) - return 0; -#if 0 - if (this->has_seekhead && !this->seekhead_handled) { - if (this->seekhead_pos) { - if (this->input->seek(this->input, this->seekhead_pos, SEEK_SET) < 0) - return 0; - this->seekhead_pos = 0; - } else { - /* parse all top level elements except clusters */ - if (this->info_pos) { - if (this->input->seek(this->input, this->info_pos, SEEK_SET) < 0) - return 0; - if (!parse_top_level(this, &next_level)) - return 0; - } - if (this->tracks_pos) { - if (this->input->seek(this->input, this->tracks_pos, SEEK_SET) < 0) - return 0; - if (!parse_top_level(this, &next_level)) - return 0; - } - if (this->chapters_pos) { - if (this->input->seek(this->input, this->chapters_pos, SEEK_SET) < 0) - return 0; - if (!parse_top_level(this, &next_level)) - return 0; - } - if (this->cues_pos) { - if (this->input->seek(this->input, this->cues_pos, SEEK_SET) < 0) - return 0; - if (!parse_top_level(this, &next_level)) - return 0; - } - if (this->attachments_pos) { - if (this->input->seek(this->input, this->attachments_pos, SEEK_SET) < 0) - return 0; - if (!parse_top_level(this, &next_level)) - return 0; - } - if (this->tags_pos) { - if (this->input->seek(this->input, this->tags_pos, SEEK_SET) < 0) - return 0; - if (!parse_top_level(this, &next_level)) - return 0; - } - /* this->seekhead_handled = 1; */ - return 1; - } - } -#endif - } - return 1; - } else { - /* not a segment */ - xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, - "demux_matroska: invalid segment\n"); - return 0; - } -} - -static int demux_matroska_send_chunk (demux_plugin_t *this_gen) { - - demux_matroska_t *this = (demux_matroska_t *) this_gen; - int next_level; - - if (!parse_top_level(this, &next_level)) { - this->status = DEMUX_FINISHED; - } - return this->status; -} - - -static int demux_matroska_get_status (demux_plugin_t *this_gen) { - demux_matroska_t *this = (demux_matroska_t *) this_gen; - - return this->status; -} - - -static void demux_matroska_send_headers (demux_plugin_t *this_gen) { - - demux_matroska_t *this = (demux_matroska_t *) this_gen; - int next_level; - - _x_demux_control_start (this->stream); - - if (!parse_segment(this)) - this->status = DEMUX_FINISHED; - else - this->status = DEMUX_OK; - - _x_stream_info_set(this->stream, XINE_STREAM_INFO_HAS_VIDEO, (this->video_track != NULL)); - _x_stream_info_set(this->stream, XINE_STREAM_INFO_HAS_AUDIO, (this->audio_track != NULL)); - - - /* - * send preview buffers - */ -/* - for (i = 0; i < NUM_PREVIEW_BUFFERS; i++) { - if (!demux_mpgaudio_next (this, BUF_FLAG_PREVIEW)) { - break; - } - } - */ - - /* enter in the segment */ - ebml_read_master (this->ebml, &this->segment); - - /* seek to the beginning of the segment */ - this->input->seek(this->input, this->segment.start, SEEK_SET); - - this->preview_sent = 0; - this->preview_mode = 1; - - next_level = 1; - while ((this->preview_sent < NUM_PREVIEW_BUFFERS) && (next_level == 1)) { - if (!parse_top_level (this, &next_level)) { - break; - } - } - this->preview_mode = 0; - - /* seek to the beginning of the segment */ - this->input->seek(this->input, this->segment.start, SEEK_SET); -} - - -static int demux_matroska_seek (demux_plugin_t *this_gen, - off_t start_pos, int start_time, int playing) { - - demux_matroska_t *this = (demux_matroska_t *) this_gen; - - this->status = DEMUX_OK; - - return this->status; -} - - -static void demux_matroska_dispose (demux_plugin_t *this) { - - free (this); -} - - -static int demux_matroska_get_stream_length (demux_plugin_t *this_gen) { - - demux_matroska_t *this = (demux_matroska_t *) this_gen; - - return (int)this->duration; -} - - -static uint32_t demux_matroska_get_capabilities (demux_plugin_t *this_gen) { - return DEMUX_CAP_NOCAP; -} - - -static int demux_matroska_get_optional_data (demux_plugin_t *this_gen, - void *data, int data_type) { - return DEMUX_OPTIONAL_UNSUPPORTED; -} - -static demux_plugin_t *open_plugin (demux_class_t *class_gen, xine_stream_t *stream, - input_plugin_t *input) { - - demux_matroska_t *this; - ebml_parser_t *ebml = NULL; - - lprintf("trying to open %s...\n", input->get_mrl(input)); - - switch (stream->content_detection_method) { - - case METHOD_BY_CONTENT: { - if (!(input->get_capabilities (input) & INPUT_CAP_SEEKABLE)) - return NULL; - input->seek(input, 0, SEEK_SET); - ebml = new_ebml_parser(stream->xine, input); - if (!ebml_check_header(ebml)) - return NULL; - } - break; - - case METHOD_BY_EXTENSION: { - char *mrl = input->get_mrl(input); - char *extensions; - - lprintf ("stage by extension %s\n", mrl); - - extensions = class_gen->get_extensions (class_gen); - - if (!_x_demux_check_extension (mrl, extensions)) - return NULL; - - } - break; - - case METHOD_EXPLICIT: - break; - - default: - return NULL; - } - - this = xine_xmalloc (sizeof (demux_matroska_t)); - - this->demux_plugin.send_headers = demux_matroska_send_headers; - this->demux_plugin.send_chunk = demux_matroska_send_chunk; - this->demux_plugin.seek = demux_matroska_seek; - this->demux_plugin.dispose = demux_matroska_dispose; - this->demux_plugin.get_status = demux_matroska_get_status; - this->demux_plugin.get_stream_length = demux_matroska_get_stream_length; - this->demux_plugin.get_capabilities = demux_matroska_get_capabilities; - this->demux_plugin.get_optional_data = demux_matroska_get_optional_data; - this->demux_plugin.demux_class = class_gen; - - this->input = input; - this->status = DEMUX_FINISHED; - this->stream = stream; - - if (!ebml) { - ebml = new_ebml_parser(stream->xine, input); - if (!ebml_check_header(ebml)) - goto error; - } - this->ebml = ebml; - - /* check header fields */ - if (ebml->max_id_len > 4) - goto error; - if (ebml->max_size_len > 8) - goto error; - if (strcmp(ebml->doctype, "matroska")) - goto error; - - return &this->demux_plugin; - -error: - if (ebml) - dispose_ebml_parser(ebml); - free(this); - return NULL; -} - - -/* - * demux matroska class - */ - -static char *get_description (demux_class_t *this_gen) { - return "matroska demux plugin"; -} - - -static char *get_identifier (demux_class_t *this_gen) { - return "matroska"; -} - - -static char *get_extensions (demux_class_t *this_gen) { - return "mkv"; -} - - -static char *get_mimetypes (demux_class_t *this_gen) { - return "video/mkv: mkv: matroska;"; -} - - -static void class_dispose (demux_class_t *this_gen) { - - demux_matroska_class_t *this = (demux_matroska_class_t *) this_gen; - - free (this); -} - - -static void *init_class (xine_t *xine, void *data) { - - demux_matroska_class_t *this; - - this = xine_xmalloc (sizeof (demux_matroska_class_t)); - this->xine = xine; - - this->demux_class.open_plugin = open_plugin; - this->demux_class.get_description = get_description; - this->demux_class.get_identifier = get_identifier; - this->demux_class.get_mimetypes = get_mimetypes; - this->demux_class.get_extensions = get_extensions; - this->demux_class.dispose = class_dispose; - - return this; -} - -/* - * exported plugin catalog entry - */ - -plugin_info_t xine_plugin_info[] = { - /* type, API, "name", version, special_info, init_function */ - { PLUGIN_DEMUX, 23, "matroska", XINE_VERSION_CODE, NULL, init_class }, - { PLUGIN_NONE, 0, "", 0, NULL, NULL } -}; +/* * Copyright (C) 2000-2003 the xine project * * This file is part of xine, a free video player. * * xine is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * xine 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * * $Id: demux_matroska.c,v 1.6 2004/01/10 01:47:14 tmattern Exp $ * * demultiplexer for matroska streams * * TODO: * memory leaks * seeking * subtitles * more codecs * metadata * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #define LOG_MODULE "demux_matroska" #define LOG_VERBOSE /* #define LOG */ #include "xine_internal.h" #include "xineutils.h" #include "demux.h" #include "bswap.h" #include "ebml.h" #include "matroska.h" #define NUM_PREVIEW_BUFFERS 10 #define MAX_STREAMS 128 #define MAX_FRAMES 32 #define WRAP_THRESHOLD 90000 typedef struct { demux_plugin_t demux_plugin; xine_stream_t *stream; input_plugin_t *input; int status; ebml_parser_t *ebml; /* segment element */ ebml_elem_t segment; uint64_t timecode_scale; int duration; /* in millis */ int preview_sent; int preview_mode; /* meta seek info */ off_t seekhead_pos; off_t info_pos; off_t tracks_pos; off_t chapters_pos; off_t cues_pos; off_t attachments_pos; off_t tags_pos; int has_seekhead; int seekhead_handled; /* tracks */ int num_tracks; matroska_track_t *tracks[MAX_STREAMS]; /* block */ uint8_t *block_data; int block_data_size; /* current tracks */ matroska_track_t *video_track; matroska_track_t *audio_track; matroska_track_t *sub_track; int send_newpts; int buf_flag_seek; } demux_matroska_t ; typedef struct { demux_class_t demux_class; /* class-wide, global variables here */ xine_t *xine; } demux_matroska_class_t; static void check_newpts (demux_matroska_t *this, int64_t pts, matroska_track_t *track) { int64_t diff; diff = pts - track->last_pts; if (pts && (this->send_newpts || (track->last_pts && abs(diff)>WRAP_THRESHOLD)) ) { int i; lprintf ("sending newpts %lld\n", pts); if (this->buf_flag_seek) { _x_demux_control_newpts(this->stream, pts, BUF_FLAG_SEEK); this->buf_flag_seek = 0; } else { _x_demux_control_newpts(this->stream, pts, 0); } this->send_newpts = 0; for (i = 0; i < this->num_tracks; i++) { this->tracks[i]->last_pts = 0; } } if (pts) track->last_pts = pts; } static int parse_info(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; double duration = 0.0; /* in matroska unit */ while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_I_TIMECODESCALE: lprintf("timecode_scale\n"); if (!ebml_read_uint(ebml, &elem, &this->timecode_scale)) return 0; break; case MATROSKA_ID_I_DURATION: { lprintf("duration\n"); if (!ebml_read_float(ebml, &elem, &duration)) return 0; } break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } if (this->timecode_scale == 0) { this->timecode_scale = 1000000; } this->duration = (int)(duration * (double)this->timecode_scale / 1000000.0); lprintf("timecode_scale: %lld\n", this->timecode_scale); lprintf("duration: %d\n", this->duration); return 1; } static int parse_video_track (demux_matroska_t *this, matroska_video_track_t *vt) { ebml_parser_t *ebml = this->ebml; int next_level = 4; uint64_t val; while (next_level == 4) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_TV_FLAGINTERLACED: lprintf("MATROSKA_ID_TV_FLAGINTERLACED\n"); if (!ebml_read_uint(ebml, &elem, &val)) return 0; vt->flag_interlaced = val; break; case MATROSKA_ID_TV_PIXELWIDTH: lprintf("MATROSKA_ID_TV_PIXELWIDTH\n"); if (!ebml_read_uint(ebml, &elem, &val)) return 0; vt->pixel_witdh = val; break; case MATROSKA_ID_TV_PIXELHEIGHT: lprintf("MATROSKA_ID_TV_PIXELHEIGHT\n"); if (!ebml_read_uint(ebml, &elem, &val)) return 0; vt->pixel_height = val; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_audio_track (demux_matroska_t *this, matroska_audio_track_t *at) { ebml_parser_t *ebml = this->ebml; int next_level = 4; while (next_level == 4) { ebml_elem_t elem; uint64_t val; double fval; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_TA_SAMPLINGFREQUENCY: lprintf("MATROSKA_ID_TA_SAMPLINGFREQUENCY\n"); if (!ebml_read_float(ebml, &elem, &fval)) return 0; at->sampling_freq = (int)fval; break; case MATROSKA_ID_TA_OUTPUTSAMPLINGFREQUENCY: lprintf("MATROSKA_ID_TA_OUTPUTSAMPLINGFREQUENCY\n"); if (!ebml_read_float(ebml, &elem, &fval)) return 0; at->output_sampling_freq = (int)fval; break; case MATROSKA_ID_TA_CHANNELS: lprintf("MATROSKA_ID_TA_CHANNELS\n"); if (!ebml_read_uint(ebml, &elem, &val)) return 0; at->channels = val; break; case MATROSKA_ID_TA_BITDEPTH: lprintf("MATROSKA_ID_TA_BITDEPTH\n"); if (!ebml_read_uint(ebml, &elem, &val)) return 0; at->bits_per_sample = val; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static void init_codec_video(demux_matroska_t *this, matroska_track_t *track) { buf_element_t *buf; buf = track->fifo->buffer_pool_alloc (track->fifo); buf->type = track->buf_type; if (track->codec_private_len > buf->max_size) { buf->size = buf->max_size; } else { buf->size = track->codec_private_len; } if (buf->size) xine_fast_memcpy (buf->content, track->codec_private, buf->size); else buf->content = NULL; buf->decoder_flags = BUF_FLAG_HEADER | BUF_FLAG_STDHEADER; buf->type = track->buf_type; buf->pts = 0; track->fifo->put (track->fifo, buf); } static void init_codec_audio(demux_matroska_t *this, matroska_track_t *track) { buf_element_t *buf; buf = track->fifo->buffer_pool_alloc (track->fifo); /* default param */ buf->decoder_info[0] = 0; buf->decoder_info[1] = 44100; buf->decoder_info[2] = 16; buf->decoder_info[3] = 2; /* track param */ if (track->audio_track) { if (track->audio_track->sampling_freq) buf->decoder_info[1] = track->audio_track->sampling_freq; if (track->audio_track->bits_per_sample) buf->decoder_info[2] = track->audio_track->bits_per_sample; if (track->audio_track->channels) buf->decoder_info[3] = track->audio_track->channels; } lprintf("%d Hz, %d bits, %d channels\n", buf->decoder_info[1], buf->decoder_info[2], buf->decoder_info[3]); if (track->codec_private_len > buf->max_size) { buf->size = buf->max_size; } else { buf->size = track->codec_private_len; } if (buf->size) xine_fast_memcpy (buf->content, track->codec_private, buf->size); else buf->content = NULL; buf->decoder_flags = BUF_FLAG_HEADER | BUF_FLAG_STDHEADER; buf->type = track->buf_type; buf->pts = 0; track->fifo->put (track->fifo, buf); } static void init_codec_vorbis(demux_matroska_t *this, matroska_track_t *track) { buf_element_t *buf; uint8_t nb_lace; int frame[3]; int i; uint8_t *data; nb_lace = track->codec_private[0]; if (nb_lace != 2) return; frame[0] = track->codec_private[1]; frame[1] = track->codec_private[2]; frame[2] = track->codec_private_len - frame[0] - frame[1] - 3; data = track->codec_private + 3; for (i = 0; i < 3; i++) { buf = track->fifo->buffer_pool_alloc (track->fifo); buf->decoder_flags = BUF_FLAG_HEADER; buf->type = track->buf_type; buf->pts = 0; buf->size = frame[i]; xine_fast_memcpy (buf->content, data, buf->size); data += buf->size; track->fifo->put (track->fifo, buf); } } static int parse_track_entry(demux_matroska_t *this, matroska_track_t *track) { ebml_parser_t *ebml = this->ebml; int next_level = 3; while (next_level == 3) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_TR_NUMBER: { uint64_t num; lprintf("TrackNumber\n"); if (!ebml_read_uint(ebml, &elem, &num)) return 0; track->track_num = num; } break; case MATROSKA_ID_TR_TYPE: { uint64_t num; lprintf("TrackType\n"); if (!ebml_read_uint(ebml, &elem, &num)) return 0; track->track_type = num; } break; case MATROSKA_ID_TR_CODECID: { char *codec_id = malloc (elem.len + 1); lprintf("CodecID\n"); if (!ebml_read_ascii(ebml, &elem, codec_id)) return 0; codec_id[elem.len] = '\0'; track->codec_id = codec_id; } break; case MATROSKA_ID_TR_CODECPRIVATE: { char *codec_private = malloc (elem.len); lprintf("CodecPrivate\n"); if (!ebml_read_binary(ebml, &elem, codec_private)) return 0; track->codec_private = codec_private; track->codec_private_len = elem.len; } break; case MATROSKA_ID_TR_LANGUAGE: { char *language = malloc (elem.len + 1); lprintf("Language\n"); if (!ebml_read_ascii(ebml, &elem, language)) return 0; language[elem.len] = '\0'; track->language = language; } break; case MATROSKA_ID_TV: lprintf("Video\n"); if (track->video_track) return 1; track->video_track = (matroska_video_track_t *)xine_xmalloc(sizeof(matroska_video_track_t)); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_video_track(this, track->video_track)) return 0; break; case MATROSKA_ID_TA: lprintf("Audio\n"); if (track->audio_track) return 1; track->audio_track = (matroska_audio_track_t *)xine_xmalloc(sizeof(matroska_audio_track_t)); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_audio_track(this, track->audio_track)) return 0; break; case MATROSKA_ID_TR_FLAGDEFAULT: { uint64_t val; lprintf("Default\n"); if (!ebml_read_uint(ebml, &elem, &val)) return 0; track->default_flag = (int)val; } break; case MATROSKA_ID_TR_DEFAULTDURATION: { uint64_t val; if (!ebml_read_uint(ebml, &elem, &val)) return 0; track->default_duration = val; lprintf("Default Duration: %lld\n", track->default_duration); } break; case MATROSKA_ID_TR_UID: case MATROSKA_ID_TR_FLAGENABLED: case MATROSKA_ID_TR_FLAGLACING: case MATROSKA_ID_TR_MINCACHE: case MATROSKA_ID_TR_MAXCACHE: case MATROSKA_ID_TR_TIMECODESCALE: case MATROSKA_ID_TR_NAME: case MATROSKA_ID_TR_CODECNAME: case MATROSKA_ID_TR_CODECSETTINGS: case MATROSKA_ID_TR_CODECINFOURL: case MATROSKA_ID_TR_CODECDOWNLOADURL: case MATROSKA_ID_TR_CODECDECODEALL: case MATROSKA_ID_TR_OVERLAY: default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) { return 0; } } next_level = ebml_get_next_level(ebml, &elem); } switch(track->track_type) { case MATROSKA_TRACK_VIDEO: if (!this->video_track) { this->video_track = track; track->fifo = this->stream->video_fifo; } break; case MATROSKA_TRACK_AUDIO: if (!this->audio_track) { this->audio_track = track; track->fifo = this->stream->audio_fifo; } break; case MATROSKA_TRACK_SUBTITLE: if (!this->sub_track) { this->sub_track = track; track->fifo = this->stream->video_fifo; } break; case MATROSKA_TRACK_COMPLEX: case MATROSKA_TRACK_LOGO: case MATROSKA_TRACK_CONTROL: break; } xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "demux_matroska: Track %d, %s %s\n", track->track_num, (track->codec_id ? track->codec_id : ""), (track->language ? track->language : "")); if (track->codec_id && track->fifo) { int init_mode = 0;; if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_VFW_FOURCC)) { xine_bmiheader *bih; lprintf("MATROSKA_CODEC_ID_V_VFW_FOURCC\n"); bih = (xine_bmiheader*)track->codec_private; _x_bmiheader_le2me(bih); track->buf_type = _x_fourcc_to_buf_video(bih->biCompression); } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_UNCOMPRESSED)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG4_SP)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG4_ASP)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG4_AP)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MSMPEG4V3)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG1)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MPEG2)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV10)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV20)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV30)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_REAL_RV40)) { lprintf("MATROSKA_CODEC_ID_V_REAL_RV40\n"); track->buf_type = BUF_VIDEO_RV40; } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_V_MJPEG)) { } else if ((!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_MPEG1_L1)) || (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_MPEG1_L2)) || (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_MPEG1_L3))) { lprintf("MATROSKA_CODEC_ID_A_MPEG1\n"); track->buf_type = BUF_AUDIO_MPEG; } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_PCM_INT_BE)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_PCM_INT_LE)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_PCM_FLOAT)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_AC3)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_DTS)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_VORBIS)) { lprintf("MATROSKA_CODEC_ID_A_VORBIS\n"); track->buf_type = BUF_AUDIO_VORBIS; init_mode = 2; } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_ACM)) { } else if (!strncmp(track->codec_id, MATROSKA_CODEC_ID_A_AAC, sizeof(MATROSKA_CODEC_ID_A_AAC - 1))) { lprintf("MATROSKA_CODEC_ID_A_AAC\n"); track->buf_type = BUF_AUDIO_AAC; init_mode = 1; } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_14_4)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_28_8)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_COOK)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_SIPR)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_RALF)) { } else if (!strcmp(track->codec_id, MATROSKA_CODEC_ID_A_REAL_ATRC)) { } else { lprintf("unknown codec\n"); } if (track->buf_type) { switch (init_mode) { case 0: init_codec_video(this, track); break; case 1: init_codec_audio(this, track); break; case 2: init_codec_vorbis(this, track); break; } } } return 1; } static int parse_tracks(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_TR_ENTRY: { this->tracks[this->num_tracks] = xine_xmalloc(sizeof(matroska_track_t)); lprintf("TrackEntry\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_track_entry(this, this->tracks[this->num_tracks])) return 0; this->num_tracks++; } break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_chapters(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_cues(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_attachments(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_tags(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static void alloc_block_data (demux_matroska_t *this, int len) { /* memory management */ if (this->block_data_size < len) { if (this->block_data) this->block_data = realloc(this->block_data, len); else this->block_data = malloc(len); this->block_data_size = len; } } static void handle_realvideo (demux_matroska_t *this, matroska_track_t *track, uint8_t *data, int len, int64_t pts, off_t input_pos, off_t input_length, int input_time, int duration) { int chunks; int chunk_tab_size; chunks = data[0]; chunk_tab_size = (chunks + 1) * 8; lprintf("chunks: %d, chunk_tab_size: %d\n", chunks, chunk_tab_size); _x_demux_send_data(track->fifo, data + chunk_tab_size + 1, len - chunk_tab_size - 1, pts, track->buf_type, 0, 0, 0, 0, this->duration, 0); /* sends the fragment table */ { buf_element_t *buf; int64_t frame_duration; frame_duration = (int64_t)track->default_duration * (int64_t)90 / (int64_t)1000000; buf = track->fifo->buffer_pool_alloc(track->fifo); buf->decoder_flags = BUF_FLAG_SPECIAL; buf->decoder_info[1] = BUF_SPECIAL_RV_CHUNK_TABLE; buf->decoder_info[2] = chunks; buf->decoder_info_ptr[2] = buf->content; buf->decoder_info[3] = frame_duration; buf->size = chunk_tab_size; buf->type = track->buf_type; xine_fast_memcpy(buf->decoder_info_ptr[2], data + 1, chunk_tab_size); track->fifo->put(track->fifo, buf); } } static int parse_ebml_uint(demux_matroska_t *this, uint8_t *data, uint64_t *num) { uint8_t mask = 0x80; int size = 1; int i; /* compute the size of the "data len" (1-8 bytes) */ while (size <= 8 && !(data[0] & mask)) { size++; mask >>= 1; } if (size > 8) { off_t pos = this->input->get_current_pos(this->input); xprintf(this->stream->xine, XINE_VERBOSITY_LOG, "demux_matroska: Invalid Track Number at position %llu\n", pos); return 0; } *num = data[0]; *num &= mask - 1; for (i = 1; i < size; i++) { *num = (*num << 8) | data[i]; } return size; } static int parse_ebml_sint(demux_matroska_t *this, uint8_t *data, int64_t *num) { uint64_t unum; int size; size = parse_ebml_uint(this, data, &unum); if (!size) return 0; /* formula taken from gstreamer demuxer */ if (unum == -1) *num = -1; else *num = unum - ((1 << ((7 * size) - 1)) - 1); return size; } static int find_track_by_id(demux_matroska_t *this, int track_num, matroska_track_t **track) { int i; *track = NULL; for (i = 0; i < this->num_tracks; i++) { if (this->tracks[i]->track_num == track_num) { *track = this->tracks[i]; return 1; } } return 0; } static int read_block_data (demux_matroska_t *this, int len) { alloc_block_data(this, len); /* block datas */ if (this->input->read(this->input, this->block_data, len) != len) { off_t pos = this->input->get_current_pos(this->input); xprintf(this->stream->xine, XINE_VERBOSITY_LOG, "demux_matroska: read error at position %llu\n", pos); return 0; } return 1; } static int parse_block (demux_matroska_t *this, uint64_t block_size, uint64_t timecode, uint64_t duration) { matroska_track_t *track; int64_t track_num; int timecode_diff; uint8_t *data; uint8_t flags; int gap; int lacing; int num_len; if (!read_block_data(this, block_size)) return 0; data = this->block_data; if (!(num_len = parse_ebml_uint(this, data, &track_num))) return 0; data += num_len; timecode_diff = (int)BE_16(data); data += 2; flags = *data; data += 1; lprintf("track_num: %lld, timecode_diff: %d, flags: 0x%x\n", track_num, timecode_diff, flags); gap = flags & 1; lacing = (flags >> 1) & 0x3; if (!find_track_by_id(this, (int)track_num, &track)) { xprintf(this->stream->xine, XINE_VERBOSITY_LOG, "demux_matroska: invalid track id: %lld\n", track_num); return 0; } if ((track == this->video_track) || (track == this->audio_track) || (track == this->sub_track)) { int64_t pts; int decoder_flags = 0; off_t input_pos, input_len; pts = ((int64_t)timecode + timecode_diff) * (int64_t)this->timecode_scale * (int64_t)90 / (int64_t)1000000; lprintf("pts: %lld\n", pts); check_newpts(this, pts, track); if (this->preview_mode) { this->preview_sent++; decoder_flags |= BUF_FLAG_PREVIEW; } input_pos = this->input->get_current_pos(this->input); input_len = this->input->get_length(this->input); if (lacing == MATROSKA_NO_LACING) { int block_size_left; lprintf("no lacing\n"); block_size_left = (this->block_data + block_size) - data; lprintf("size: %d, block_size: %lld\n", block_size_left, block_size); if (track->buf_type == BUF_VIDEO_RV40) { handle_realvideo(this, track, data, block_size_left, pts, input_pos, input_len, pts / 90, this->duration); } else { _x_demux_send_data(track->fifo, data, block_size_left, pts, track->buf_type, decoder_flags, input_pos, input_len, pts / 90, this->duration, 0); } } else { int block_size_left; uint8_t lace_num; int frame[MAX_FRAMES]; int i; /* number of laced frames */ lace_num = *data; data++; lprintf("lace_num: %d\n", lace_num); if ((lace_num + 1) > MAX_FRAMES) { xprintf(this->stream->xine, XINE_VERBOSITY_LOG, "demux_matroska: too many frames: %d\n", lace_num); return 0; } block_size_left = this->block_data + block_size - data; switch (lacing) { case MATROSKA_XIPH_LACING: { lprintf("xiph lacing\n"); /* size of each frame */ for (i = 0; i < lace_num; i++) { int size = 0; while (*data == 255) { size += *data; data++; block_size_left--; } size += *data; data++; block_size_left--; frame[i] = size; block_size_left -= size; } /* last frame */ frame[lace_num] = block_size_left; } break; case MATROSKA_FIXED_SIZE_LACING: lprintf("fixed size lacing\n"); for (i = 0; i < lace_num; i++) { frame[i] = block_size / (lace_num + 1); block_size_left -= frame[i]; } frame[lace_num] = block_size_left; break; case MATROSKA_EBML_LACING: { int64_t tmp; lprintf("ebml lacing\n"); /* size of each frame */ if (!(num_len = parse_ebml_uint(this, data, &tmp))) return 0; data += num_len; block_size_left -= num_len; frame[0] = (int) tmp; lprintf("first frame len: %d\n", frame[0]); block_size_left -= frame[0]; for (i = 1; i < lace_num; i++) { if (!(num_len = parse_ebml_sint(this, data, &tmp))) return 0; data += num_len; block_size_left -= num_len; frame[i] = frame[i-1] + tmp; block_size_left -= frame[i]; } /* last frame */ frame[lace_num] = block_size_left; } break; default: xprintf(this->stream->xine, XINE_VERBOSITY_LOG, "demux_matroska: invalid lacing: %d\n", lacing); return 0; } /* send each frame to the decoder */ for (i = 0; i <= lace_num; i++) { _x_demux_send_data(track->fifo, data, frame[i], pts, track->buf_type, decoder_flags, input_pos, input_len, pts / 90, 0, 0); data += frame[i]; pts = 0; } } } return 1; } static int parse_block_group(demux_matroska_t *this, uint64_t timecode, uint64_t duration) { ebml_parser_t *ebml = this->ebml; int next_level = 3; while (next_level == 3) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_CL_BLOCK: lprintf("block\n"); if (!parse_block(this, elem.len, timecode, duration)) return 0; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_cluster(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; uint64_t timecode = 0; uint64_t duration = 0; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_CL_TIMECODE: lprintf("timecode\n"); if (!ebml_read_uint(ebml, &elem, &timecode)) return 0; break; case MATROSKA_ID_CL_DURATION: lprintf("duration\n"); if (!ebml_read_uint(ebml, &elem, &duration)) return 0; break; case MATROSKA_ID_CL_BLOCKGROUP: lprintf("blockgroup\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_block_group(this, timecode, duration)) return 0; break; case MATROSKA_ID_CL_BLOCK: lprintf("block\n"); if (!ebml_skip(ebml, &elem)) return 0; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_seek_entry(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 3; int has_id = 0; int has_position = 0; uint64_t id, pos; while (next_level == 3) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_S_ID: lprintf("SeekID\n"); if (!ebml_read_uint(ebml, &elem, &id)) return 0; has_id = 1; break; case MATROSKA_ID_S_POSITION: lprintf("SeekPosition\n"); if (!ebml_read_uint(ebml, &elem, &pos)) return 0; has_position = 1; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } if (has_id && has_position) { switch (id) { case MATROSKA_ID_INFO: lprintf("Seek Entry: Info: %lld\n", pos); this->info_pos = this->segment.start + pos; break; case MATROSKA_ID_SEEKHEAD: lprintf("Seek Entry: SeekHead: %lld\n", pos); this->seekhead_pos = this->segment.start + pos; break; case MATROSKA_ID_CLUSTER: lprintf("Seek Entry: Cluster: %lld\n", pos); break; case MATROSKA_ID_TRACKS: lprintf("Seek Entry: Tracks: %lld\n", pos); this->tracks_pos = this->segment.start + pos; break; case MATROSKA_ID_CUES: lprintf("Seek Entry: Cues: %lld\n", pos); this->cues_pos = this->segment.start + pos; break; case MATROSKA_ID_ATTACHMENTS: lprintf("Seek Entry: Attachements: %lld\n", pos); this->attachments_pos = this->segment.start + pos; break; case MATROSKA_ID_CHAPTERS: lprintf("Seek Entry: Chapters: %lld\n", pos); this->chapters_pos = this->segment.start + pos; break; default: lprintf("Unhandled Seek Entry ID: 0x%llx\n", id); } return 1; } else { lprintf("incomplete Seek Entry\n"); return 1; } } static int parse_seekhead(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; int next_level = 2; this->has_seekhead = 1; while (next_level == 2) { ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_S_ENTRY: lprintf("Seek\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_seek_entry(this)) return 0; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } next_level = ebml_get_next_level(ebml, &elem); } return 1; } static int parse_top_level_head(demux_matroska_t *this, int *next_level) { ebml_parser_t *ebml = this->ebml; ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_SEEKHEAD: lprintf("SeekHead\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_seekhead(this)) return 0; this->has_seekhead = 1; break; case MATROSKA_ID_INFO: lprintf("Info\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_info(this)) return 0; break; case MATROSKA_ID_TRACKS: lprintf("Tracks\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_tracks(this)) return 0; break; case MATROSKA_ID_CHAPTERS: lprintf("Chapters\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_chapters(this)) return 0; break; case MATROSKA_ID_CLUSTER: lprintf("Cluster\n"); if (!ebml_skip(ebml, &elem)) return 0; break; case MATROSKA_ID_CUES: lprintf("Cues\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_cues(this)) return 0; break; case MATROSKA_ID_ATTACHMENTS: lprintf("Attachments\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_attachments(this)) return 0; break; case MATROSKA_ID_TAGS: lprintf("Tags\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_tags(this)) return 0; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } if (next_level) *next_level = ebml_get_next_level(ebml, &elem); return 1; } static int parse_top_level(demux_matroska_t *this, int *next_level) { ebml_parser_t *ebml = this->ebml; ebml_elem_t elem; if (!ebml_read_elem_head(ebml, &elem)) return 0; switch (elem.id) { case MATROSKA_ID_SEEKHEAD: lprintf("SeekHead\n"); if (!ebml_skip(ebml, &elem)) return 0; this->has_seekhead = 1; break; case MATROSKA_ID_INFO: lprintf("Info\n"); if (!ebml_skip(ebml, &elem)) return 0; break; case MATROSKA_ID_TRACKS: lprintf("Tracks\n"); if (!ebml_skip(ebml, &elem)) return 0; break; case MATROSKA_ID_CHAPTERS: lprintf("Chapters\n"); if (!ebml_skip(ebml, &elem)) return 0; break; case MATROSKA_ID_CLUSTER: lprintf("Cluster\n"); if (!ebml_read_master (ebml, &elem)) return 0; if (!parse_cluster(this)) return 0; break; case MATROSKA_ID_CUES: lprintf("Cues\n"); if (!ebml_skip(ebml, &elem)) return 0; break; case MATROSKA_ID_ATTACHMENTS: lprintf("Attachments\n"); if (!ebml_skip(ebml, &elem)) return 0; break; case MATROSKA_ID_TAGS: lprintf("Tags\n"); if (!ebml_skip(ebml, &elem)) return 0; break; default: lprintf("Unhandled ID: 0x%x\n", elem.id); if (!ebml_skip(ebml, &elem)) return 0; } if (next_level) *next_level = ebml_get_next_level(ebml, &elem); return 1; } static int parse_segment(demux_matroska_t *this) { ebml_parser_t *ebml = this->ebml; /* check segment id */ if (!ebml_read_elem_head(ebml, &this->segment)) return 0; if (this->segment.id == MATROSKA_ID_SEGMENT) { int next_level; lprintf("Segment\n"); if (!ebml_read_master (ebml, &this->segment)) return 0; next_level = 1; while (next_level == 1) { if (!parse_top_level_head(this, &next_level)) return 0; #if 0 if (this->has_seekhead && !this->seekhead_handled) { if (this->seekhead_pos) { if (this->input->seek(this->input, this->seekhead_pos, SEEK_SET) < 0) return 0; this->seekhead_pos = 0; } else { /* parse all top level elements except clusters */ if (this->info_pos) { if (this->input->seek(this->input, this->info_pos, SEEK_SET) < 0) return 0; if (!parse_top_level(this, &next_level)) return 0; } if (this->tracks_pos) { if (this->input->seek(this->input, this->tracks_pos, SEEK_SET) < 0) return 0; if (!parse_top_level(this, &next_level)) return 0; } if (this->chapters_pos) { if (this->input->seek(this->input, this->chapters_pos, SEEK_SET) < 0) return 0; if (!parse_top_level(this, &next_level)) return 0; } if (this->cues_pos) { if (this->input->seek(this->input, this->cues_pos, SEEK_SET) < 0) return 0; if (!parse_top_level(this, &next_level)) return 0; } if (this->attachments_pos) { if (this->input->seek(this->input, this->attachments_pos, SEEK_SET) < 0) return 0; if (!parse_top_level(this, &next_level)) return 0; } if (this->tags_pos) { if (this->input->seek(this->input, this->tags_pos, SEEK_SET) < 0) return 0; if (!parse_top_level(this, &next_level)) return 0; } /* this->seekhead_handled = 1; */ return 1; } } #endif } return 1; } else { /* not a segment */ xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "demux_matroska: invalid segment\n"); return 0; } } static int demux_matroska_send_chunk (demux_plugin_t *this_gen) { demux_matroska_t *this = (demux_matroska_t *) this_gen; int next_level; if (!parse_top_level(this, &next_level)) { this->status = DEMUX_FINISHED; } return this->status; } static int demux_matroska_get_status (demux_plugin_t *this_gen) { demux_matroska_t *this = (demux_matroska_t *) this_gen; return this->status; } static void demux_matroska_send_headers (demux_plugin_t *this_gen) { demux_matroska_t *this = (demux_matroska_t *) this_gen; int next_level; _x_demux_control_start (this->stream); if (!parse_segment(this)) this->status = DEMUX_FINISHED; else this->status = DEMUX_OK; _x_stream_info_set(this->stream, XINE_STREAM_INFO_HAS_VIDEO, (this->video_track != NULL)); _x_stream_info_set(this->stream, XINE_STREAM_INFO_HAS_AUDIO, (this->audio_track != NULL)); /* * send preview buffers */ /* for (i = 0; i < NUM_PREVIEW_BUFFERS; i++) { if (!demux_mpgaudio_next (this, BUF_FLAG_PREVIEW)) { break; } } */ /* enter in the segment */ ebml_read_master (this->ebml, &this->segment); /* seek to the beginning of the segment */ this->input->seek(this->input, this->segment.start, SEEK_SET); this->preview_sent = 0; this->preview_mode = 1; next_level = 1; while ((this->preview_sent < NUM_PREVIEW_BUFFERS) && (next_level == 1)) { if (!parse_top_level (this, &next_level)) { break; } } this->preview_mode = 0; /* seek to the beginning of the segment */ this->input->seek(this->input, this->segment.start, SEEK_SET); } static int demux_matroska_seek (demux_plugin_t *this_gen, off_t start_pos, int start_time, int playing) { demux_matroska_t *this = (demux_matroska_t *) this_gen; this->status = DEMUX_OK; return this->status; } static void demux_matroska_dispose (demux_plugin_t *this) { free (this); } static int demux_matroska_get_stream_length (demux_plugin_t *this_gen) { demux_matroska_t *this = (demux_matroska_t *) this_gen; return (int)this->duration; } static uint32_t demux_matroska_get_capabilities (demux_plugin_t *this_gen) { return DEMUX_CAP_NOCAP; } static int demux_matroska_get_optional_data (demux_plugin_t *this_gen, void *data, int data_type) { return DEMUX_OPTIONAL_UNSUPPORTED; } static demux_plugin_t *open_plugin (demux_class_t *class_gen, xine_stream_t *stream, input_plugin_t *input) { demux_matroska_t *this; ebml_parser_t *ebml = NULL; lprintf("trying to open %s...\n", input->get_mrl(input)); switch (stream->content_detection_method) { case METHOD_BY_CONTENT: { if (!(input->get_capabilities (input) & INPUT_CAP_SEEKABLE)) return NULL; input->seek(input, 0, SEEK_SET); ebml = new_ebml_parser(stream->xine, input); if (!ebml_check_header(ebml)) return NULL; } break; case METHOD_BY_EXTENSION: { char *mrl = input->get_mrl(input); char *extensions; lprintf ("stage by extension %s\n", mrl); extensions = class_gen->get_extensions (class_gen); if (!_x_demux_check_extension (mrl, extensions)) return NULL; } break; case METHOD_EXPLICIT: break; default: return NULL; } this = xine_xmalloc (sizeof (demux_matroska_t)); this->demux_plugin.send_headers = demux_matroska_send_headers; this->demux_plugin.send_chunk = demux_matroska_send_chunk; this->demux_plugin.seek = demux_matroska_seek; this->demux_plugin.dispose = demux_matroska_dispose; this->demux_plugin.get_status = demux_matroska_get_status; this->demux_plugin.get_stream_length = demux_matroska_get_stream_length; this->demux_plugin.get_capabilities = demux_matroska_get_capabilities; this->demux_plugin.get_optional_data = demux_matroska_get_optional_data; this->demux_plugin.demux_class = class_gen; this->input = input; this->status = DEMUX_FINISHED; this->stream = stream; if (!ebml) { ebml = new_ebml_parser(stream->xine, input); if (!ebml_check_header(ebml)) goto error; } this->ebml = ebml; /* check header fields */ if (ebml->max_id_len > 4) goto error; if (ebml->max_size_len > 8) goto error; if (strcmp(ebml->doctype, "matroska")) goto error; return &this->demux_plugin; error: if (ebml) dispose_ebml_parser(ebml); free(this); return NULL; } /* * demux matroska class */ static char *get_description (demux_class_t *this_gen) { return "matroska demux plugin"; } static char *get_identifier (demux_class_t *this_gen) { return "matroska"; } static char *get_extensions (demux_class_t *this_gen) { return "mkv"; } static char *get_mimetypes (demux_class_t *this_gen) { return "video/mkv: mkv: matroska;"; } static void class_dispose (demux_class_t *this_gen) { demux_matroska_class_t *this = (demux_matroska_class_t *) this_gen; free (this); } static void *init_class (xine_t *xine, void *data) { demux_matroska_class_t *this; this = xine_xmalloc (sizeof (demux_matroska_class_t)); this->xine = xine; this->demux_class.open_plugin = open_plugin; this->demux_class.get_description = get_description; this->demux_class.get_identifier = get_identifier; this->demux_class.get_mimetypes = get_mimetypes; this->demux_class.get_extensions = get_extensions; this->demux_class.dispose = class_dispose; return this; } /* * exported plugin catalog entry */ plugin_info_t xine_plugin_info[] = { /* type, API, "name", version, special_info, init_function */ { PLUGIN_DEMUX, 23, "matroska", XINE_VERSION_CODE, NULL, init_class }, { PLUGIN_NONE, 0, "", 0, NULL, NULL } }; \ No newline at end of file -- cgit v1.2.3