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https://gitlab.com/mbunkus/mkvtoolnix.git
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Working MPEG-1 PS to Matroska transmuxing :)
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c3ada08d26
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@ -27,6 +27,8 @@
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#include "mp3_common.h"
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#include "r_mpeg.h"
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#include "smart_pointers.h"
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#include "p_ac3.h"
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#include "p_mp3.h"
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#include "p_video.h"
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#define PROBESIZE 4
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@ -146,7 +148,7 @@ mpeg_es_reader_c::create_packetizer(int64_t) {
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(int)(height * aspect_ratio),
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height, ti));
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mxinfo(FMT_TID "Using the MPEG 1/2 video output module.\n",
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mxinfo(FMT_TID "Using the MPEG-1/2 video output module.\n",
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ti->fname.c_str(), (int64_t)0);
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}
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@ -156,8 +158,8 @@ mpeg_es_reader_c::read(generic_packetizer_c *,
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unsigned char *chunk;
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int num_read;
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chunk = (unsigned char *)safemalloc(20000);
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num_read = mm_io->read(chunk, 20000);
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chunk = (unsigned char *)safemalloc(6022);
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num_read = mm_io->read(chunk, 6022);
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if (num_read <= 0) {
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safefree(chunk);
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return FILE_STATUS_DONE;
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@ -351,6 +353,8 @@ mpeg_ps_reader_c::mpeg_ps_reader_c(track_info_c *nti)
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mxverb(3, "%02x ", i);
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mxverb(3, "\n");
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mm_io->setFilePointer(0, seek_beginning);
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} catch (exception &ex) {
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throw error_c("mpeg_ps_reader: Could not open the file.");
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}
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@ -454,6 +458,7 @@ mpeg_ps_reader_c::found_new_stream(int id) {
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throw false;
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mpeg_ps_track_ptr track(new mpeg_ps_track_t);
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track->first_timecode = timecode;
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if (id < 0xe0) {
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track->type = 'a';
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@ -537,6 +542,7 @@ mpeg_ps_reader_c::found_new_stream(int id) {
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throw "Error parsing the first AC3 audio frame.";
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track->a_channels = header.channels;
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track->a_sample_rate = header.sample_rate;
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track->a_bsid = header.bsid;
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// } else if (track->fourcc == FOURCC('D', 'T', 'S', ' ')) {
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@ -563,14 +569,13 @@ mpeg_ps_reader_c::found_new_stream(int id) {
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}
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bool
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mpeg_ps_reader_c::find_next_packet_for_id(int id) {
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mpeg_ps_reader_c::find_next_packet(int &id) {
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try {
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uint32_t header;
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header = mm_io->read_uint32_be();
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while (1) {
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uint8_t stream_id, byte;
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uint16_t pes_packet_length;
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uint8_t byte;
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switch (header) {
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case MPEGVIDEO_PACKET_START_CODE:
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@ -610,14 +615,8 @@ mpeg_ps_reader_c::find_next_packet_for_id(int id) {
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if (!mpeg_is_start_code(header))
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return false;
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stream_id = header & 0xff;
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if (stream_id == id)
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return true;
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pes_packet_length = mm_io->read_uint16_be();
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mm_io->skip(pes_packet_length);
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header = mm_io->read_uint32_be();
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id = header & 0xff;
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return true;
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break;
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}
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@ -627,19 +626,129 @@ mpeg_ps_reader_c::find_next_packet_for_id(int id) {
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}
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}
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bool
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mpeg_ps_reader_c::find_next_packet_for_id(int id) {
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int new_id;
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try {
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while (find_next_packet(new_id)) {
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if (id == new_id)
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return true;
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mm_io->skip(mm_io->read_uint16_be());
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}
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} catch(...) {
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}
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return false;
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}
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void
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mpeg_ps_reader_c::create_packetizer(int64_t) {
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mpeg_ps_reader_c::create_packetizer(int64_t id) {
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if ((id < 0) || (id >= tracks.size()))
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return;
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if (tracks[id]->ptzr >= 0)
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return;
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if (!demuxing_requested(tracks[id]->type, id))
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return;
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mpeg_ps_track_ptr &track = tracks[id];
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if (track->type == 'a') {
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if ((track->fourcc == FOURCC('M', 'P', '1', ' ')) ||
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(track->fourcc == FOURCC('M', 'P', '2', ' ')) ||
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(track->fourcc == FOURCC('M', 'P', '3', ' '))) {
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track->ptzr =
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add_packetizer(new mp3_packetizer_c(this, track->a_sample_rate,
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track->a_channels, true, ti));
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if (verbose)
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mxinfo(FMT_TID "Using the MPEG audio output module.\n",
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ti->fname.c_str(), id);
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} else if (track->fourcc == FOURCC('A', 'C', '3', ' ')) {
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track->ptzr =
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add_packetizer(new ac3_packetizer_c(this, track->a_sample_rate,
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track->a_channels,
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track->a_bsid, ti));
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if (verbose)
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mxinfo(FMT_TID "Using the AC3 output module.\n",
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ti->fname.c_str(), id);
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} else
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mxerror("mpeg_ps_reader: Should not have happened #1. %s", BUGMSG);
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} else { // if (track->type == 'a')
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if ((track->fourcc == FOURCC('m', 'p', 'g', '1')) ||
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(track->fourcc == FOURCC('m', 'p', 'g', '2'))) {
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mpeg_12_video_packetizer_c *ptzr;
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ti->private_data = track->raw_seq_hdr;
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ti->private_size = track->raw_seq_hdr_size;
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ptzr =
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new mpeg_12_video_packetizer_c(this, track->v_version,
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track->v_frame_rate,
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track->v_width, track->v_height,
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(int)(track->v_height *
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track->v_aspect_ratio),
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track->v_height, ti);
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track->ptzr = add_packetizer(ptzr);
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ti->private_data = NULL;
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ti->private_size = 0;
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if (verbose)
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mxinfo(FMT_TID "Using the MPEG-1/2 video output module.\n",
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ti->fname.c_str(), id);
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} else
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mxerror("mpeg_ps_reader: Should not have happened #2. %s", BUGMSG);
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}
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}
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void
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mpeg_ps_reader_c::create_packetizers() {
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int i;
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for (i = 0; i < tracks.size(); i++)
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create_packetizer(i);
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}
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file_status_e
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mpeg_ps_reader_c::read(generic_packetizer_c *,
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bool) {
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int64_t timecode, packet_pos;
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int new_id, length;
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unsigned char *buf;
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try {
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while (find_next_packet(new_id)) {
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if ((id2idx[new_id] == -1) ||
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(tracks[id2idx[new_id]]->ptzr == -1)) {
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mm_io->skip(mm_io->read_uint16_be());
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continue;
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}
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packet_pos = mm_io->getFilePointer() - 4;
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if (!parse_packet(new_id, timecode, length))
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return FILE_STATUS_DONE;
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mxverb(2, "mpeg_ps: packet for %d length %d at %lld\n", new_id, length,
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packet_pos);
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buf = (unsigned char *)safemalloc(length);
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if (mm_io->read(buf, length) != length) {
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safefree(buf);
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return FILE_STATUS_DONE;
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}
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memory_c mem(buf, length, true);
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PTZR(tracks[id2idx[new_id]]->ptzr)->process(mem);
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return FILE_STATUS_MOREDATA;
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}
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} catch(...) {
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}
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return FILE_STATUS_DONE;
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}
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int
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mpeg_ps_reader_c::get_progress() {
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return 100 * bytes_processed / size;
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return 100 * mm_io->getFilePointer() / size;
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}
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void
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char type; // 'v' for video, 'a' for audio, 's' for subs
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uint32_t fourcc;
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int64_t first_timecode;
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int v_version, v_width, v_height;
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double v_frame_rate, v_aspect_ratio;
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unsigned char *raw_seq_hdr;
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int raw_seq_hdr_size;
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int a_channels, a_sample_rate, a_bits_per_sample;
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int a_channels, a_sample_rate, a_bits_per_sample, a_bsid;
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mpeg_ps_track_t():
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ptzr(0), type(0), fourcc(0),
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ptzr(-1), type(0), fourcc(0),
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v_version(0), v_width(0), v_height(0),
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v_frame_rate(0), v_aspect_ratio(0),
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raw_seq_hdr(NULL), raw_seq_hdr_size(0),
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a_channels(0), a_sample_rate(0), a_bits_per_sample(0) {
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a_channels(0), a_sample_rate(0), a_bits_per_sample(0), a_bsid(0) {
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};
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~mpeg_ps_track_t() {
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safefree(raw_seq_hdr);
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@ -95,11 +97,13 @@ public:
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virtual int get_progress();
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virtual void identify();
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virtual void create_packetizer(int64_t id);
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virtual void create_packetizers();
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virtual void found_new_stream(int id);
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virtual bool read_timestamp(int c, int64_t ×tamp);
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virtual bool parse_packet(int id, int64_t ×tamp, int &size);
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virtual bool find_next_packet(int &id);
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virtual bool find_next_packet_for_id(int id);
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static int probe_file(mm_io_c *mm_io, int64_t size);
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