int mk_close(mk_Writer *w) { int ret = 0; if (mk_flushFrame(w) < 0 || mk_closeCluster(w) < 0) ret = -1; if (w->wrote_header) { fseek(w->fp, w->duration_ptr, SEEK_SET); if (mk_writeFloatRaw(w->root, (float)((double)(w->max_frame_tc+w->def_duration) / w->timescale)) < 0 || mk_flushContextData(w->root) < 0) ret = -1; } mk_destroyContexts(w); fclose(w->fp); free(w); return ret; }
int mk_close(mk_Writer *w) { int i, ret = 0; mk_Track *tk; int64_t max_frame_tc = w->tracks_arr[0]->max_frame_tc; uint64_t segment_size = 0; unsigned char c_size[8]; unsigned char segment_uid[16]; md5_finish(&w->segment_md5, segment_uid); for (i = w->num_tracks - 1; i >= 0; i--) { tk = w->tracks_arr[i]; if (mk_flushFrame(w, tk) < 0) ret = -1; } if (mk_closeCluster(w) < 0) ret = -1; w->seek_data.cues = w->f_pos - w->segment_ptr; if (mk_closeContext(w->cues, 0) < 0) ret = -1; if (mk_flushContextData(w->root) < 0) ret = -1; if (w->cluster.seekhead) { w->seek_data.seekhead = w->f_pos - w->segment_ptr; if (mk_closeContext(w->cluster.seekhead, 0) < 0) ret = -1; if (mk_flushContextData(w->root) < 0) ret = -1; } if (w->attachments != NULL) { w->seek_data.attachments = w->f_pos - w->segment_ptr; mk_writeAttachments(w); if (mk_flushContextData(w->root) < 0) ret = -1; } if (w->tags != NULL) { w->seek_data.tags = w->f_pos - w->segment_ptr; mk_writeTags(w); if (mk_flushContextData(w->root) < 0) ret = -1; } if (w->chapters != NULL) { if (w->vlc_compat) { if (mk_flushContextData(w->root) < 0) ret = -1; if (mk_seekFile(w, w->segment_ptr + RESERVED_SEEKHEAD + 3) < 0) ret = -1; } w->seek_data.chapters = w->f_pos - w->segment_ptr; mk_writeChapters(w); if (mk_flushContextData(w->root) < 0) ret = -1; if (w->vlc_compat) { if (mk_writeVoid(w->root, (RESERVED_CHAPTERS - (w->f_pos - w->segment_ptr - RESERVED_SEEKHEAD - 3))) < 0) ret = -1; if (mk_flushContextData(w->root) < 0) ret = -1; } } if (w->wrote_header) { if (w->vlc_compat) { if (mk_seekFile(w, w->segment_ptr) < 0) ret = -1; } if (mk_writeSeekHead(w, &w->seek_data.seekhead) < 0) ret = -1; w->seek_data.seekhead -= w->segment_ptr; if (w->vlc_compat) { if (mk_flushContextData(w->root) < 0) ret = -1; if (mk_writeVoid(w->root, (RESERVED_SEEKHEAD - (w->f_pos - w->segment_ptr))) < 0) ret = -1; } if (mk_flushContextData(w->root) < 0) ret = -1; if (!w->vlc_compat) { int i = w->seek_data.segmentinfo; w->seek_data.segmentinfo = 0; w->seek_data.tracks = 0; w->seek_data.cues = 0; w->seek_data.chapters = 0; w->seek_data.attachments = 0; w->seek_data.tags = 0; if (mk_seekFile(w, w->segment_ptr) < 0) ret = -1; if (mk_writeSeekHead(w, NULL) < 0 || mk_flushContextData(w->root) < 0) ret = -1; // The conditional below is easier to understand, but incorrect // because f_pos is unsigned and causes the lhs to be evaluated // as an unsigned quantity. // if (((i + w->segment_ptr) - w->f_pos - 2) > 1) if ((i + w->segment_ptr) > (w->f_pos + 3)) if (mk_writeVoid(w->root, (i + w->segment_ptr) - w->f_pos - 2) < 0 || mk_flushContextData(w->root) < 0) ret = -1; } if (mk_seekFile(w, w->duration_ptr) < 0) ret = -1; if (mk_writeFloatRaw(w->root, (float) ((double) (max_frame_tc + w->def_duration) / w->timescale)) < 0 || mk_flushContextData(w->root) < 0) ret = -1; if (mk_seekFile(w, w->segment_ptr - 8) < 0) ret = -1; segment_size = w->f_eof - w->segment_ptr; for (i = 7; i > 0; --i) c_size[i] = segment_size >> (8 * (7 - i)); c_size[i] = 0x01; if (mk_appendContextData(w->root, &c_size, 8) < 0 || mk_flushContextData(w->root) < 0) ret = -1; if (mk_seekFile(w, w->segmentuid_ptr) < 0) ret = -1; if (mk_writeBin(w->root, MATROSKA_ID_SEGMENTUID, segment_uid, sizeof(segment_uid)) < 0 || mk_flushContextData(w->root) < 0) ret = -1; } /* update any track private data that may have changed */ for (i = w->num_tracks - 1; i >= 0; i--) { tk = w->tracks_arr[i]; if (tk->private_data_size && tk->private_data) { if (mk_seekFile(w, tk->private_data_ptr) < 0) ret = -1; if (mk_writeBin(w->root, MATROSKA_ID_CODECPRIVATE, tk->private_data, tk->private_data_size) < 0 || mk_flushContextData(w->root) < 0) ret = -1; free(tk->private_data); } w->tracks_arr[i] = NULL; --w->num_tracks; free(tk); } if (mk_closeContext(w->root, 0) < 0) ret = -1; mk_destroyContexts(w); fclose(w->fp); free(w->tracks_arr); free(w); return ret; }
static int mk_writeFloat(mk_Context *c, unsigned id, float f) { CHECK(mk_writeID(c, id)); CHECK(mk_writeSize(c, 4)); CHECK(mk_writeFloatRaw(c, f)); return 0; }