From af4c7a3fd894297ce7f23d170db1b6a453ab59da Mon Sep 17 00:00:00 2001 From: nicodvb Date: Mon, 20 Aug 2007 21:27:44 +0000 Subject: reimplemented nav_read_PCI() and nav_read_DSI() using getbits() rather than relying on bitfields layout in memory git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24108 b3059339-0415-0410-9bf9-f77b7e298cf2 --- dvdread/nav_read.c | 190 ++++++++++++++++++++++++++++++++++------------------- 1 file changed, 121 insertions(+), 69 deletions(-) (limited to 'dvdread/nav_read.c') diff --git a/dvdread/nav_read.c b/dvdread/nav_read.c index e29956dc1b..9ba685bdca 100644 --- a/dvdread/nav_read.c +++ b/dvdread/nav_read.c @@ -104,60 +104,104 @@ static uint32_t getbits(getbits_state_t *state, uint32_t number_of_bits) { void navRead_PCI(pci_t *pci, unsigned char *buffer) { int i, j; - - CHECK_VALUE(sizeof(pci_t) == PCI_BYTES - 1); // -1 for substream id - - memcpy(pci, buffer, sizeof(pci_t)); - - /* Endian conversions */ + getbits_state_t state; + if (!getbits_init(&state, buffer)) abort(); /* Passed NULL pointers */ /* pci pci_gi */ - B2N_32(pci->pci_gi.nv_pck_lbn); - B2N_16(pci->pci_gi.vobu_cat); - B2N_32(pci->pci_gi.vobu_s_ptm); - B2N_32(pci->pci_gi.vobu_e_ptm); - B2N_32(pci->pci_gi.vobu_se_e_ptm); + pci->pci_gi.nv_pck_lbn = getbits(&state, 32 ); + pci->pci_gi.vobu_cat = getbits(&state, 16 ); + pci->pci_gi.zero1 = getbits(&state, 16 ); + pci->pci_gi.vobu_uop_ctl.zero = getbits(&state, 7 ); + pci->pci_gi.vobu_uop_ctl.video_pres_mode_change = getbits(&state, 1 ); + + pci->pci_gi.vobu_uop_ctl.karaoke_audio_pres_mode_change = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.angle_change = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.subpic_stream_change = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.audio_stream_change = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.pause_on = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.still_off = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.button_select_or_activate = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.resume = getbits(&state, 1 ); + + pci->pci_gi.vobu_uop_ctl.chapter_menu_call = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.angle_menu_call = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.audio_menu_call = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.subpic_menu_call = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.root_menu_call = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.title_menu_call = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.backward_scan = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.forward_scan = getbits(&state, 1 ); + + pci->pci_gi.vobu_uop_ctl.next_pg_search = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.prev_or_top_pg_search = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.time_or_chapter_search = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.go_up = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.stop = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.title_play = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.chapter_search_or_play = getbits(&state, 1 ); + pci->pci_gi.vobu_uop_ctl.title_or_time_play = getbits(&state, 1 ); + pci->pci_gi.vobu_s_ptm = getbits(&state, 32 ); + pci->pci_gi.vobu_e_ptm = getbits(&state, 32 ); + pci->pci_gi.vobu_se_e_ptm = getbits(&state, 32 ); + pci->pci_gi.e_eltm.hour = getbits(&state, 8 ); + pci->pci_gi.e_eltm.minute = getbits(&state, 8 ); + pci->pci_gi.e_eltm.second = getbits(&state, 8 ); + pci->pci_gi.e_eltm.frame_u = getbits(&state, 8 ); + for(i = 0; i < 32; i++) + pci->pci_gi.vobu_isrc[i] = getbits(&state, 8 ); /* pci nsml_agli */ for(i = 0; i < 9; i++) - B2N_32(pci->nsml_agli.nsml_agl_dsta[i]); + pci->nsml_agli.nsml_agl_dsta[i] = getbits(&state, 32 ); /* pci hli hli_gi */ - B2N_16(pci->hli.hl_gi.hli_ss); - B2N_32(pci->hli.hl_gi.hli_s_ptm); - B2N_32(pci->hli.hl_gi.hli_e_ptm); - B2N_32(pci->hli.hl_gi.btn_se_e_ptm); + pci->hli.hl_gi.hli_ss = getbits(&state, 16 ); + pci->hli.hl_gi.hli_s_ptm = getbits(&state, 32 ); + pci->hli.hl_gi.hli_e_ptm = getbits(&state, 32 ); + pci->hli.hl_gi.btn_se_e_ptm = getbits(&state, 32 ); + pci->hli.hl_gi.zero1 = getbits(&state, 2 ); + pci->hli.hl_gi.btngr_ns = getbits(&state, 2 ); + pci->hli.hl_gi.zero2 = getbits(&state, 1 ); + pci->hli.hl_gi.btngr1_dsp_ty = getbits(&state, 3 ); + pci->hli.hl_gi.zero3 = getbits(&state, 1 ); + pci->hli.hl_gi.btngr2_dsp_ty = getbits(&state, 3 ); + pci->hli.hl_gi.zero4 = getbits(&state, 1 ); + pci->hli.hl_gi.btngr3_dsp_ty = getbits(&state, 3 ); + pci->hli.hl_gi.btn_ofn = getbits(&state, 8 ); + pci->hli.hl_gi.btn_ns = getbits(&state, 8 ); + pci->hli.hl_gi.nsl_btn_ns = getbits(&state, 8 ); + pci->hli.hl_gi.zero5 = getbits(&state, 8 ); + pci->hli.hl_gi.fosl_btnn = getbits(&state, 8 ); + pci->hli.hl_gi.foac_btnn = getbits(&state, 8 ); /* pci hli btn_colit */ for(i = 0; i < 3; i++) for(j = 0; j < 2; j++) - B2N_32(pci->hli.btn_colit.btn_coli[i][j]); + pci->hli.btn_colit.btn_coli[i][j] = getbits(&state, 32 ); - /* NOTE: I've had to change the structure from the disk layout to get - * the packing to work with Sun's Forte C compiler. */ - /* pci hli btni */ for(i = 0; i < 36; i++) { - char tmp[sizeof(pci->hli.btnit[i])], swap; - memcpy(tmp, &(pci->hli.btnit[i]), sizeof(pci->hli.btnit[i])); - /* Byte 4 to 7 are 'rotated' was: ABCD EFGH IJ is: ABCG DEFH IJ */ - swap = tmp[6]; - tmp[6] = tmp[5]; - tmp[5] = tmp[4]; - tmp[4] = tmp[3]; - tmp[3] = swap; - - /* Then there are the two B2N_24(..) calls */ -#ifndef WORDS_BIGENDIAN - swap = tmp[0]; - tmp[0] = tmp[2]; - tmp[2] = swap; - - swap = tmp[4]; - tmp[4] = tmp[6]; - tmp[6] = swap; -#endif - memcpy(&(pci->hli.btnit[i]), tmp, sizeof(pci->hli.btnit[i])); + pci->hli.btnit[i].btn_coln = getbits(&state, 2 ); + pci->hli.btnit[i].x_start = getbits(&state, 10 ); + pci->hli.btnit[i].zero1 = getbits(&state, 2 ); + pci->hli.btnit[i].x_end = getbits(&state, 10 ); + + pci->hli.btnit[i].auto_action_mode = getbits(&state, 2 ); + pci->hli.btnit[i].y_start = getbits(&state, 10 ); + pci->hli.btnit[i].zero2 = getbits(&state, 2 ); + pci->hli.btnit[i].y_end = getbits(&state, 10 ); + + pci->hli.btnit[i].zero3 = getbits(&state, 2 ); + pci->hli.btnit[i].up = getbits(&state, 6 ); + pci->hli.btnit[i].zero4 = getbits(&state, 2 ); + pci->hli.btnit[i].down = getbits(&state, 6 ); + pci->hli.btnit[i].zero5 = getbits(&state, 2 ); + pci->hli.btnit[i].left = getbits(&state, 6 ); + pci->hli.btnit[i].zero6 = getbits(&state, 2 ); + pci->hli.btnit[i].right = getbits(&state, 6 ); + /* pci vm_cmd */ + for(j = 0; j < 8; j++) + pci->hli.btnit[i].cmd.bytes[j] = getbits(&state, 8 ); } @@ -224,51 +268,59 @@ void navRead_PCI(pci_t *pci, unsigned char *buffer) { void navRead_DSI(dsi_t *dsi, unsigned char *buffer) { int i; - - CHECK_VALUE(sizeof(dsi_t) == DSI_BYTES - 1); // -1 for substream id - - memcpy(dsi, buffer, sizeof(dsi_t)); - - /* Endian conversions */ + getbits_state_t state; + if (!getbits_init(&state, buffer)) abort(); /* Passed NULL pointers */ /* dsi dsi gi */ - B2N_32(dsi->dsi_gi.nv_pck_scr); - B2N_32(dsi->dsi_gi.nv_pck_lbn); - B2N_32(dsi->dsi_gi.vobu_ea); - B2N_32(dsi->dsi_gi.vobu_1stref_ea); - B2N_32(dsi->dsi_gi.vobu_2ndref_ea); - B2N_32(dsi->dsi_gi.vobu_3rdref_ea); - B2N_16(dsi->dsi_gi.vobu_vob_idn); + dsi->dsi_gi.nv_pck_scr = getbits(&state, 32 ); + dsi->dsi_gi.nv_pck_lbn = getbits(&state, 32 ); + dsi->dsi_gi.vobu_ea = getbits(&state, 32 ); + dsi->dsi_gi.vobu_1stref_ea = getbits(&state, 32 ); + dsi->dsi_gi.vobu_2ndref_ea = getbits(&state, 32 ); + dsi->dsi_gi.vobu_3rdref_ea = getbits(&state, 32 ); + dsi->dsi_gi.vobu_vob_idn = getbits(&state, 16 ); + dsi->dsi_gi.zero1 = getbits(&state, 8 ); + dsi->dsi_gi.vobu_c_idn = getbits(&state, 8 ); + dsi->dsi_gi.c_eltm.hour = getbits(&state, 8 ); + dsi->dsi_gi.c_eltm.minute = getbits(&state, 8 ); + dsi->dsi_gi.c_eltm.second = getbits(&state, 8 ); + dsi->dsi_gi.c_eltm.frame_u = getbits(&state, 8 ); /* dsi sml pbi */ - B2N_16(dsi->sml_pbi.category); - B2N_32(dsi->sml_pbi.ilvu_ea); - B2N_32(dsi->sml_pbi.ilvu_sa); - B2N_16(dsi->sml_pbi.size); - B2N_32(dsi->sml_pbi.vob_v_s_s_ptm); - B2N_32(dsi->sml_pbi.vob_v_e_e_ptm); + dsi->sml_pbi.category = getbits(&state, 16 ); + dsi->sml_pbi.ilvu_ea = getbits(&state, 32 ); + dsi->sml_pbi.ilvu_sa = getbits(&state, 32 ); + dsi->sml_pbi.size = getbits(&state, 16 ); + dsi->sml_pbi.vob_v_s_s_ptm = getbits(&state, 32 ); + dsi->sml_pbi.vob_v_e_e_ptm = getbits(&state, 32 ); + for(i = 0; i < 8; i++) { + dsi->sml_pbi.vob_a[i].stp_ptm1 = getbits(&state, 32 ); + dsi->sml_pbi.vob_a[i].stp_ptm2 = getbits(&state, 32 ); + dsi->sml_pbi.vob_a[i].gap_len1 = getbits(&state, 32 ); + dsi->sml_pbi.vob_a[i].gap_len2 = getbits(&state, 32 ); + } /* dsi sml agli */ for(i = 0; i < 9; i++) { - B2N_32(dsi->sml_agli.data[ i ].address); - B2N_16(dsi->sml_agli.data[ i ].size); + dsi->sml_agli.data[ i ].address = getbits(&state, 32 ); + dsi->sml_agli.data[ i ].size = getbits(&state, 16 ); } /* dsi vobu sri */ - B2N_32(dsi->vobu_sri.next_video); + dsi->vobu_sri.next_video = getbits(&state, 32 ); for(i = 0; i < 19; i++) - B2N_32(dsi->vobu_sri.fwda[i]); - B2N_32(dsi->vobu_sri.next_vobu); - B2N_32(dsi->vobu_sri.prev_vobu); + dsi->vobu_sri.fwda[i] = getbits(&state, 32 ); + dsi->vobu_sri.next_vobu = getbits(&state, 32 ); + dsi->vobu_sri.prev_vobu = getbits(&state, 32 ); for(i = 0; i < 19; i++) - B2N_32(dsi->vobu_sri.bwda[i]); - B2N_32(dsi->vobu_sri.prev_video); + dsi->vobu_sri.bwda[i] = getbits(&state, 32 ); + dsi->vobu_sri.prev_video = getbits(&state, 32 ); /* dsi synci */ for(i = 0; i < 8; i++) - B2N_16(dsi->synci.a_synca[i]); + dsi->synci.a_synca[i] = getbits(&state, 16 ); for(i = 0; i < 32; i++) - B2N_32(dsi->synci.sp_synca[i]); + dsi->synci.sp_synca[i] = getbits(&state, 32 ); /* Asserts */ -- cgit v1.2.3