Hello, This is missing an "enabled gpl" in the configure.
BR, On Sat, 2 Mar 2024, at 09:08, Marth64 wrote: > ffmpeg | branch: master | Marth64 <mart...@proxyid.net> | Sun Feb 18 > 22:01:44 2024 -0600| [a1304272c3a0ef7c3d77c702dd466b3f11bf300f] | > committer: Anton Khirnov > > libavformat/dvdvideo: add DVD-Video demuxer, powered by libdvdread and > libdvdnav > > Signed-off-by: Marth64 <mart...@proxyid.net> > Signed-off-by: Anton Khirnov <an...@khirnov.net> > >> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a1304272c3a0ef7c3d77c702dd466b3f11bf300f > --- > > Changelog | 1 + > configure | 8 + > doc/demuxers.texi | 130 +++++ > libavformat/Makefile | 1 + > libavformat/allformats.c | 1 + > libavformat/dvdvideodec.c | 1411 > +++++++++++++++++++++++++++++++++++++++++++++ > 6 files changed, 1552 insertions(+) > > diff --git a/Changelog b/Changelog > index c65ef492be..fedad5782c 100644 > --- a/Changelog > +++ b/Changelog > @@ -29,6 +29,7 @@ version <next>: > build environment if it lacks C17 support > - Change the default bitrate control method from VBR to CQP for QSV encoders. > - removed deprecated ffmpeg CLI options -psnr and -map_channel > +- DVD-Video demuxer, powered by libdvdnav and libdvdread > > version 6.1: > - libaribcaption decoder > diff --git a/configure b/configure > index b5b233e852..db7dc89755 100755 > --- a/configure > +++ b/configure > @@ -227,6 +227,8 @@ External library support: > --enable-libdavs2 enable AVS2 decoding via libdavs2 [no] > --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394 > and libraw1394 [no] > + --enable-libdvdnav enable libdvdnav, needed for DVD demuxing > [no] > + --enable-libdvdread enable libdvdread, needed for DVD demuxing > [no] > --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no] > --enable-libflite enable flite (voice synthesis) support via > libflite [no] > --enable-libfontconfig enable libfontconfig, useful for drawtext > filter [no] > @@ -1806,6 +1808,8 @@ EXTERNAL_LIBRARY_GPL_LIST=" > frei0r > libcdio > libdavs2 > + libdvdnav > + libdvdread > librubberband > libvidstab > libx264 > @@ -3526,6 +3530,8 @@ dts_demuxer_select="dca_parser" > dtshd_demuxer_select="dca_parser" > dv_demuxer_select="dvprofile" > dv_muxer_select="dvprofile" > +dvdvideo_demuxer_select="mpegps_demuxer" > +dvdvideo_demuxer_deps="libdvdnav libdvdread" > dxa_demuxer_select="riffdec" > eac3_demuxer_select="ac3_parser" > evc_demuxer_select="evc_frame_merge_bsf evc_parser" > @@ -6775,6 +6781,8 @@ enabled libdav1d && require_pkg_config > libdav1d "dav1d >= 0.5.0" "dav1d > enabled libdavs2 && require_pkg_config libdavs2 "davs2 >= > 1.6.0" davs2.h davs2_decoder_open > enabled libdc1394 && require_pkg_config libdc1394 libdc1394-2 > dc1394/dc1394.h dc1394_new > enabled libdrm && check_pkg_config libdrm libdrm xf86drm.h > drmGetVersion > +enabled libdvdnav && require_pkg_config libdvdnav "dvdnav >= > 6.1.1" dvdnav/dvdnav.h dvdnav_open2 > +enabled libdvdread && require_pkg_config libdvdread "dvdread >= > 6.1.2" dvdread/dvd_reader.h DVDOpen2 -ldvdread > enabled libfdk_aac && { check_pkg_config libfdk_aac fdk-aac > "fdk-aac/aacenc_lib.h" aacEncOpen || > { require libfdk_aac > fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac && > warn "using libfdk without > pkg-config"; } } > diff --git a/doc/demuxers.texi b/doc/demuxers.texi > index e4c5b560a6..062ea2ea42 100644 > --- a/doc/demuxers.texi > +++ b/doc/demuxers.texi > @@ -285,6 +285,136 @@ This demuxer accepts the following option: > > @end table > > +@section dvdvideo > + > +DVD-Video demuxer, powered by libdvdnav and libdvdread. > + > +Can directly ingest DVD titles, specifically sequential PGCs, > +into a conversion pipeline. Menus and seeking are not supported at > this time. > + > +Block devices (DVD drives), ISO files, and directory structures are > accepted. > +Activate with @code{-f dvdvideo} in front of one of these inputs. > + > +Underlying playback is handled by libdvdnav, and structure parsing by > libdvdread. > +FFmpeg must be built with GPL library support available as well as the > +configure switches @code{--enable-libdvdnav} and > @code{--enable-libdvdread}. > + > +You will need to provide either the desired "title number" or exact > PGC/PG coordinates. > +Many open-source DVD players and tools can aid in providing this > information. > +If not specified, the demuxer will default to title 1 which works for > many discs. > +However, due to the flexibility of the format, it is recommended to > check manually. > +There are many discs that are authored strangely or with invalid > headers. > + > +If the input is a real DVD drive, please note that there are some > drives which may > +silently fail on reading bad sectors from the disc, returning random > bits instead > +which is effectively corrupt data. This is especially prominent on > aging or rotting discs. > +A second pass and integrity checks would be needed to detect the > corruption. > +This is not an FFmpeg issue. > + > +@subsection Background > + > +DVD-Video is not a directly accessible, linear container format in the > +traditional sense. Instead, it allows for complex and programmatic > playback of > +carefully muxed MPEG-PS streams that are stored in headerless VOB > files. > +To the end-user, these streams are known simply as "titles", but the > actual > +logical playback sequence is defined by one or more "PGCs", or Program > Group Chains, > +within the title. The PGC is in turn comprised of multiple "PGs", or > Programs", > +which are the actual video segments (and for a typical video feature, > sequentially > +ordered). The PGC structure, along with stream layout and metadata, > are stored in > +IFO files that need to be parsed. PGCs can be thought of as playlists > in easier terms. > + > +An actual DVD player relies on user GUI interaction via menus and an > internal VM > +to drive the direction of demuxing. Generally, the user would either > navigate (via menus) > +or automatically be redirected to the PGC of their choice. During this > process and > +the subsequent playback, the DVD player's internal VM also maintains a > state and > +executes instructions that can create jumps to different sectors > during playback. > +This is why libdvdnav is involved, as a linear read of the MPEG-PS > blobs on the > +disc (VOBs) is not enough to produce the right sequence in many cases. > + > +There are many other DVD structures (a long subject) that will not be > discussed here. > +NAV packets, in particular, are handled by this demuxer to build > accurate timing > +but not emitted as a stream. For a good high-level understanding, > refer to: > +@url{https://code.videolan.org/videolan/libdvdnav/-/blob/master/doc/dvd_structures} > + > +@subsection Options > + > +This demuxer accepts the following options: > + > +@table @option > + > +@item title @var{int} > +The title number to play. Must be set if @option{pgc} and @option{pg} > are not set. > +Default is 0 (auto), which currently only selects the first available > title (title 1) > +and notifies the user about the implications. > + > +@item chapter_start @var{int} > +The chapter, or PTT (part-of-title), number to start at. Default is 1. > + > +@item chapter_end @var{int} > +The chapter, or PTT (part-of-title), number to end at. Default is 0, > +which is a special value to signal end at the last possible chapter. > + > +@item angle @var{int} > +The video angle number, referring to what is essentially an additional > +video stream that is composed from alternate frames interleaved in the > VOBs. > +Default is 1. > + > +@item region @var{int} > +The region code to use for playback. Some discs may use this to > default playback > +at a particular angle in different regions. This option will not > affect the region code > +of a real DVD drive, if used as an input. Default is 0, "world". > + > +@item pgc @var{int} > +The entry PGC to start playback, in conjunction with @option{pg}. > +Alternative to setting @option{title}. > +Chapter markers are not supported at this time. > +Default is 0, automatically resolve from value of @option{title}. > + > +@item pg @var{int} > +The entry PG to start playback, in conjunction with @option{pgc}. > +Alternative to setting @option{title}. > +Chapter markers are not supported at this time. > +Default is 0, automatically resolve from value of @option{title}. > + > +@item preindex @var{bool} > +Enable this to have accurate chapter (PTT) markers and duration > measurement, > +which requires a slow second pass read in order to index the chapter > marker > +timestamps from NAV packets. This is non-ideal extra work for real > optical drives. > +It is recommended and faster to use this option with a backup of the > DVD structure > +stored on a hard drive. Not compatible with @option{pgc} and > @option{pg}. > +Default is 0, false. > + > +@item trim @var{bool} > +Skip padding cells (i.e. cells shorter than 1 second) from the > beginning. > +There exist many discs with filler segments at the beginning of the > PGC, > +often with junk data intended for controlling a real DVD player's > +buffering speed and with no other material data value. > +Default is 1, true. > + > +@end table > + > +@subsection Examples > + > +@itemize > +@item > +Open title 3 from a given DVD structure: > +@example > +ffmpeg -f dvdvideo -title 3 -i <path to DVD> ... > +@end example > + > +@item > +Open chapters 3-6 from title 1 from a given DVD structure: > +@example > +ffmpeg -f dvdvideo -chapter_start 3 -chapter_end 6 -title 1 -i <path > to DVD> ... > +@end example > + > +@item > +Open only chapter 5 from title 1 from a given DVD structure: > +@example > +ffmpeg -f dvdvideo -chapter_start 5 -chapter_end 5 -title 1 -i <path > to DVD> ... > +@end example > +@end itemize > + > @section ea > > Electronic Arts Multimedia format demuxer. > diff --git a/libavformat/Makefile b/libavformat/Makefile > index 4a380668bd..8811a0ffc9 100644 > --- a/libavformat/Makefile > +++ b/libavformat/Makefile > @@ -194,6 +194,7 @@ OBJS-$(CONFIG_DTS_MUXER) += rawenc.o > OBJS-$(CONFIG_DV_MUXER) += dvenc.o > OBJS-$(CONFIG_DVBSUB_DEMUXER) += dvbsub.o rawdec.o > OBJS-$(CONFIG_DVBTXT_DEMUXER) += dvbtxt.o rawdec.o > +OBJS-$(CONFIG_DVDVIDEO_DEMUXER) += dvdvideodec.o > OBJS-$(CONFIG_DXA_DEMUXER) += dxa.o > OBJS-$(CONFIG_EA_CDATA_DEMUXER) += eacdata.o > OBJS-$(CONFIG_EA_DEMUXER) += electronicarts.o > diff --git a/libavformat/allformats.c b/libavformat/allformats.c > index b04b43cab3..3e905c23f8 100644 > --- a/libavformat/allformats.c > +++ b/libavformat/allformats.c > @@ -150,6 +150,7 @@ extern const AVInputFormat ff_dv_demuxer; > extern const FFOutputFormat ff_dv_muxer; > extern const AVInputFormat ff_dvbsub_demuxer; > extern const AVInputFormat ff_dvbtxt_demuxer; > +extern const AVInputFormat ff_dvdvideo_demuxer; > extern const AVInputFormat ff_dxa_demuxer; > extern const AVInputFormat ff_ea_demuxer; > extern const AVInputFormat ff_ea_cdata_demuxer; > diff --git a/libavformat/dvdvideodec.c b/libavformat/dvdvideodec.c > new file mode 100644 > index 0000000000..3355010356 > --- /dev/null > +++ b/libavformat/dvdvideodec.c > @@ -0,0 +1,1411 @@ > +/* > + * DVD-Video demuxer, powered by libdvdnav and libdvdread > + * > + * This file is part of FFmpeg. > + * > + * FFmpeg is free software; you can redistribute it and/or > + * modify it under the terms of the GNU Lesser General Public > + * License as published by the Free Software Foundation; either > + * version 2.1 of the License, or (at your option) any later version. > + * > + * FFmpeg 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 > + * Lesser General Public License for more details. > + * > + * You should have received a copy of the GNU Lesser General Public > + * License along with FFmpeg; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > 02110-1301 USA > + */ > + > +/* > + * See doc/demuxers.texi for a high-level overview. > + * > + * The tactical approach is as follows: > + * 1) Open the volume with dvdread > + * 2) Analyze the user-requested title and PGC coordinates in the IFO > structures > + * 3) Request playback at the coordinates and chosen angle with dvdnav > + * 5) Begin the playback (reading and demuxing) of MPEG-PS blocks > + * 6) End playback if navigation goes backwards, to a menu, or a > different PGC or angle > + * 7) Close the dvdnav VM, and free dvdread's IFO structures > + */ > + > +#include <dvdnav/dvdnav.h> > +#include <dvdread/dvd_reader.h> > +#include <dvdread/ifo_read.h> > +#include <dvdread/ifo_types.h> > +#include <dvdread/nav_read.h> > + > +#include "libavutil/avstring.h" > +#include "libavutil/avutil.h" > +#include "libavutil/intreadwrite.h" > +#include "libavutil/mem.h" > +#include "libavutil/opt.h" > +#include "libavutil/samplefmt.h" > +#include "libavutil/time.h" > +#include "libavutil/timestamp.h" > + > +#include "avformat.h" > +#include "avio_internal.h" > +#include "avlanguage.h" > +#include "demux.h" > +#include "internal.h" > +#include "url.h" > + > +#define DVDVIDEO_MAX_PS_SEARCH_BLOCKS 128 > +#define DVDVIDEO_BLOCK_SIZE 2048 > +#define DVDVIDEO_TIME_BASE_Q (AVRational) { > 1, 90000 } > +#define DVDVIDEO_PTS_WRAP_BITS 64 /* VOBUs > use 32 (PES allows 33) */ > + > +#define DVDVIDEO_LIBDVDX_LOG_BUFFER_SIZE 1024 > + > +enum DVDVideoSubpictureViewport { > + DVDVIDEO_SUBP_VIEWPORT_FULLSCREEN, > + DVDVIDEO_SUBP_VIEWPORT_WIDESCREEN, > + DVDVIDEO_SUBP_VIEWPORT_LETTERBOX, > + DVDVIDEO_SUBP_VIEWPORT_PANSCAN > +}; > +static const char dvdvideo_subp_viewport_labels[4][13] = { > + "Fullscreen", "Widescreen", "Letterbox", "Pan and Scan" > +}; > + > +typedef struct DVDVideoVTSVideoStreamEntry { > + int startcode; > + enum AVCodecID codec_id; > + int width; > + int height; > + AVRational dar; > + AVRational framerate; > + int has_cc; > +} DVDVideoVTSVideoStreamEntry; > + > +typedef struct DVDVideoPGCAudioStreamEntry { > + int startcode; > + enum AVCodecID codec_id; > + int sample_fmt; > + int sample_rate; > + int bit_depth; > + int nb_channels; > + AVChannelLayout ch_layout; > + int disposition; > + const char *lang_iso; > +} DVDVideoPGCAudioStreamEntry; > + > +typedef struct DVDVideoPGCSubtitleStreamEntry { > + int startcode; > + enum DVDVideoSubpictureViewport viewport; > + int disposition; > + const char *lang_iso; > +} DVDVideoPGCSubtitleStreamEntry; > + > +typedef struct DVDVideoPlaybackState { > + int celln; /* ID of the > active cell */ > + int entry_pgn; /* ID of the PG we > are starting in */ > + int in_pgc; /* if our > navigator is in the PGC */ > + int in_ps; /* if our > navigator is in the program stream */ > + int in_vts; /* if our > navigator is in the VTS */ > + int64_t nav_pts; /* PTS according > to IFO, not frame-accurate */ > + int nb_cells_played; /* number of cells > played back so far */ > + uint64_t pgc_duration_est; /* estimated > duration as reported by IFO */ > + uint64_t pgc_elapsed; /* the elapsed > time of the PGC, cell-relative */ > + int pgc_nb_pg_est; /* number of PGs > as reported by IFOs */ > + int pgcn; /* ID of the PGC > we are playing */ > + int pgn; /* ID of the PG we > are in now */ > + int ptt; /* ID of the > chapter we are in now */ > + int64_t ts_offset; /* PTS > discontinuity offset (ex. VOB change) */ > + uint32_t vobu_duration; /* duration of the > current VOBU */ > + uint32_t vobu_e_ptm; /* end PTM of the > current VOBU */ > + int vtsn; /* ID of the > active VTS (video title set) */ > + uint64_t *pgc_pg_times_est; /* PG start times > as reported by IFO */ > + pgc_t *pgc; /* handle to the > active PGC */ > + dvdnav_t *dvdnav; /* handle to the > dvdnav VM */ > +} DVDVideoPlaybackState; > + > +typedef struct DVDVideoDemuxContext { > + const AVClass *class; > + > + /* options */ > + int opt_angle; /* the > user-provided angle number (1-indexed) */ > + int opt_chapter_end; /* the > user-provided exit PTT (0 for last) */ > + int opt_chapter_start; /* the > user-provided entry PTT (1-indexed) */ > + int opt_pg; /* the > user-provided PG number (1-indexed) */ > + int opt_pgc; /* the > user-provided PGC number (1-indexed) */ > + int opt_preindex; /* pre-indexing > mode (2-pass read) */ > + int opt_region; /* the > user-provided region digit */ > + int opt_title; /* the > user-provided title number (1-indexed) */ > + int opt_trim; /* trim padding > cells at beginning */ > + > + /* subdemux */ > + const AVInputFormat *mpeg_fmt; /* inner MPEG-PS > (VOB) demuxer */ > + AVFormatContext *mpeg_ctx; /* context for > inner demuxer */ > + uint8_t *mpeg_buf; /* buffer for > inner demuxer */ > + FFIOContext mpeg_pb; /* buffer context > for inner demuxer */ > + > + /* volume */ > + dvd_reader_t *dvdread; /* handle to > libdvdread */ > + ifo_handle_t *vmg_ifo; /* handle to the > VMG (VIDEO_TS.IFO) */ > + ifo_handle_t *vts_ifo; /* handle to the > active VTS (VTS_nn_n.IFO) */ > + > + /* playback control */ > + int64_t first_pts; /* the PTS of the > first video keyframe */ > + int play_end; /* signal EOF to > the parent demuxer */ > + DVDVideoPlaybackState play_state; /* the active > playback state */ > + int play_started; /* signal that > playback has started */ > + int segment_started; /* signal that > subdemuxer is on a segment */ > +} DVDVideoDemuxContext; > + > +static void dvdvideo_libdvdread_log(void *opaque, dvd_logger_level_t > level, > + const char *msg, va_list msg_va) > +{ > + AVFormatContext *s = opaque; > + char msg_buf[DVDVIDEO_LIBDVDX_LOG_BUFFER_SIZE]; > + int lavu_level = AV_LOG_DEBUG; > + > + vsnprintf(msg_buf, sizeof(msg_buf), msg, msg_va); > + > + if (level == DVD_LOGGER_LEVEL_ERROR) > + lavu_level = AV_LOG_ERROR; > + else if (level == DVD_LOGGER_LEVEL_WARN) > + lavu_level = AV_LOG_WARNING; > + > + av_log(s, lavu_level, "libdvdread: %s\n", msg_buf); > +} > + > +static void dvdvideo_libdvdnav_log(void *opaque, dvdnav_logger_level_t > level, > + const char *msg, va_list msg_va) > +{ > + AVFormatContext *s = opaque; > + char msg_buf[DVDVIDEO_LIBDVDX_LOG_BUFFER_SIZE]; > + int lavu_level = AV_LOG_DEBUG; > + > + vsnprintf(msg_buf, sizeof(msg_buf), msg, msg_va); > + > + if (level == DVDNAV_LOGGER_LEVEL_ERROR) > + lavu_level = AV_LOG_ERROR; > + /* some discs have invalid language codes set for menus, which > throws noisy warnings */ > + else if (level == DVDNAV_LOGGER_LEVEL_WARN && !av_strstart(msg, > "Language", NULL)) > + lavu_level = AV_LOG_WARNING; > + > + av_log(s, lavu_level, "libdvdnav: %s\n", msg_buf); > +} > + > +static void dvdvideo_ifo_close(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + if (c->vts_ifo) > + ifoClose(c->vts_ifo); > + > + if (c->vmg_ifo) > + ifoClose(c->vmg_ifo); > + > + if (c->dvdread) > + DVDClose(c->dvdread); > +} > + > +static int dvdvideo_ifo_open(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + dvd_logger_cb dvdread_log_cb; > + title_info_t title_info; > + > + dvdread_log_cb = (dvd_logger_cb) { .pf_log = > dvdvideo_libdvdread_log }; > + c->dvdread = DVDOpen2(s, &dvdread_log_cb, s->url); > + > + if (!c->dvdread) { > + av_log(s, AV_LOG_ERROR, "Unable to open the DVD-Video > structure\n"); > + > + return AVERROR_EXTERNAL; > + } > + > + if (!(c->vmg_ifo = ifoOpen(c->dvdread, 0))) { > + av_log(s, AV_LOG_ERROR, "Unable to open the VMG > (VIDEO_TS.IFO)\n"); > + > + return AVERROR_EXTERNAL; > + } > + > + if (c->opt_title > c->vmg_ifo->tt_srpt->nr_of_srpts) { > + av_log(s, AV_LOG_ERROR, "Title %d not found\n", c->opt_title); > + > + return AVERROR_STREAM_NOT_FOUND; > + } > + > + title_info = c->vmg_ifo->tt_srpt->title[c->opt_title - 1]; > + if (c->opt_angle > title_info.nr_of_angles) { > + av_log(s, AV_LOG_ERROR, "Angle %d not found\n", c->opt_angle); > + > + return AVERROR_STREAM_NOT_FOUND; > + } > + > + if (title_info.nr_of_ptts < 1) { > + av_log(s, AV_LOG_ERROR, "Title %d has invalid headers (no PTTs > found)\n", c->opt_title); > + > + return AVERROR_INVALIDDATA; > + } > + > + if (c->opt_chapter_start > title_info.nr_of_ptts || > + (c->opt_chapter_end > 0 && c->opt_chapter_end > > title_info.nr_of_ptts)) { > + av_log(s, AV_LOG_ERROR, "Chapter (PTT) range [%d, %d] is > invalid\n", > + c->opt_chapter_start, > c->opt_chapter_end); > + > + return AVERROR_INVALIDDATA; > + } > + > + if (!(c->vts_ifo = ifoOpen(c->dvdread, title_info.title_set_nr))) { > + av_log(s, AV_LOG_ERROR, "Unable to process IFO structure for > VTS %d\n", > + title_info.title_set_nr); > + > + return AVERROR_EXTERNAL; > + } > + > + if (title_info.vts_ttn < 1 || > + title_info.vts_ttn > 99 || > + title_info.vts_ttn > c->vts_ifo->vts_ptt_srpt->nr_of_srpts || > + c->vts_ifo->vtsi_mat->nr_of_vts_audio_streams > 8 || > + c->vts_ifo->vtsi_mat->nr_of_vts_subp_streams > 32) { > + > + av_log(s, AV_LOG_ERROR, "Title %d has invalid headers in > VTS\n", c->opt_title); > + return AVERROR_INVALIDDATA; > + } > + > + return 0; > +} > + > +static int dvdvideo_is_cell_promising(AVFormatContext *s, pgc_t *pgc, > int celln) > +{ > + dvd_time_t cell_duration = pgc->cell_playback[celln - > 1].playback_time; > + > + return cell_duration.second >= 1 || cell_duration.minute >= 1 || > cell_duration.hour >= 1; > +} > + > +static int dvdvideo_is_pgc_promising(AVFormatContext *s, pgc_t *pgc) > +{ > + for (int i = 1; i <= pgc->nr_of_cells; i++) > + if (dvdvideo_is_cell_promising(s, pgc, i)) > + return 1; > + > + return 0; > +} > + > +static void dvdvideo_play_close(AVFormatContext *s, > DVDVideoPlaybackState *state) > +{ > + if (!state->dvdnav) > + return; > + > + /* not allocated by av_malloc() */ > + if (state->pgc_pg_times_est) > + free(state->pgc_pg_times_est); > + > + if (dvdnav_close(state->dvdnav) != DVDNAV_STATUS_OK) > + av_log(s, AV_LOG_ERROR, "Unable to close dvdnav successfully, > dvdnav error: %s\n", > + dvdnav_err_to_string(state->dvdnav)); > +} > + > +static int dvdvideo_play_open(AVFormatContext *s, > DVDVideoPlaybackState *state) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + dvdnav_logger_cb dvdnav_log_cb; > + dvdnav_status_t dvdnav_open_status; > + int32_t disc_region_mask; > + int32_t player_region_mask; > + int cur_title, cur_pgcn, cur_pgn; > + pgc_t *pgc; > + > + dvdnav_log_cb = (dvdnav_logger_cb) { .pf_log = > dvdvideo_libdvdnav_log }; > + dvdnav_open_status = dvdnav_open2(&state->dvdnav, s, > &dvdnav_log_cb, s->url); > + > + if (!state->dvdnav > || > + dvdnav_open_status != DVDNAV_STATUS_OK > || > + dvdnav_set_readahead_flag(state->dvdnav, 0) != > DVDNAV_STATUS_OK || > + dvdnav_set_PGC_positioning_flag(state->dvdnav, 1) != > DVDNAV_STATUS_OK || > + dvdnav_get_region_mask(state->dvdnav, &disc_region_mask) != > DVDNAV_STATUS_OK) { > + > + av_log(s, AV_LOG_ERROR, "Unable to open the DVD for > playback\n"); > + goto end_dvdnav_error; > + } > + > + player_region_mask = c->opt_region > 0 ? (1 << (c->opt_region - > 1)) : disc_region_mask; > + if (dvdnav_set_region_mask(state->dvdnav, player_region_mask) != > DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to set the playback region > code %d\n", c->opt_region); > + > + goto end_dvdnav_error; > + } > + > + if (c->opt_pgc > 0 && c->opt_pg > 0) { > + if (dvdnav_program_play(state->dvdnav, c->opt_title, > c->opt_pgc, c->opt_pg) != DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to start playback at title > %d, PGC %d, PG %d\n", > + c->opt_title, c->opt_pgc, > c->opt_pg); > + > + goto end_dvdnav_error; > + } > + > + state->pgcn = c->opt_pgc; > + state->entry_pgn = c->opt_pg; > + } else { > + if (dvdnav_part_play(state->dvdnav, c->opt_title, > c->opt_chapter_start) != DVDNAV_STATUS_OK || > + dvdnav_current_title_program(state->dvdnav, &cur_title, > &cur_pgcn, &cur_pgn) != DVDNAV_STATUS_OK) { > + > + av_log(s, AV_LOG_ERROR, "Unable to start playback at title > %d, chapter (PTT) %d\n", > + c->opt_title, > c->opt_chapter_start); > + goto end_dvdnav_error; > + } > + > + state->pgcn = cur_pgcn; > + state->entry_pgn = cur_pgn; > + } > + > + pgc = c->vts_ifo->vts_pgcit->pgci_srp[state->pgcn - 1].pgc; > + > + if (pgc->pg_playback_mode != 0) { > + av_log(s, AV_LOG_ERROR, "Non-sequential PGCs, such as > shuffles, are not supported\n"); > + > + return AVERROR_PATCHWELCOME; > + } > + > + if (c->opt_trim && !dvdvideo_is_pgc_promising(s, pgc)) { > + av_log(s, AV_LOG_ERROR, "Title %d, PGC %d looks empty (may > consist of padding cells), " > + "if you want to try anyway, disable > the -trim option\n", > + c->opt_title, state->pgcn); > + > + return AVERROR_INVALIDDATA; > + } > + > + if (dvdnav_angle_change(state->dvdnav, c->opt_angle) != > DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to start playback at angle > %d\n", c->opt_angle); > + > + goto end_dvdnav_error; > + } > + > + /* dvdnav_describe_title_chapters() performs several validations > on the title structure */ > + /* take advantage of this side effect to increase chances of a > safe navigation path */ > + state->pgc_nb_pg_est = > dvdnav_describe_title_chapters(state->dvdnav, c->opt_title, > + > &state->pgc_pg_times_est, > + > &state->pgc_duration_est); > + > + /* dvdnav returning 0 PGs is documented as an error condition */ > + if (!state->pgc_nb_pg_est) { > + av_log(s, AV_LOG_ERROR, "Unable to read chapter information > for title %d\n", c->opt_title); > + > + goto end_dvdnav_error; > + } > + > + state->nav_pts = dvdnav_get_current_time(state->dvdnav); > + state->vtsn = c->vmg_ifo->tt_srpt->title[c->opt_title - > 1].title_set_nr; > + state->pgc = pgc; > + > + return 0; > + > +end_dvdnav_error: > + if (state->dvdnav) > + av_log(s, AV_LOG_ERROR, "dvdnav error: %s\n", > dvdnav_err_to_string(state->dvdnav)); > + else > + av_log(s, AV_LOG_ERROR, "dvdnav could not be initialized\n"); > + > + return AVERROR_EXTERNAL; > +} > + > +static int dvdvideo_play_next_ps_block(AVFormatContext *s, > DVDVideoPlaybackState *state, > + uint8_t *buf, int buf_size, > + int *p_nav_event, > + void > (*flush_cb)(AVFormatContext *s)) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + uint8_t nav_buf[DVDVIDEO_BLOCK_SIZE] = {0}; > + int nav_event; > + int nav_len; > + > + dvdnav_vts_change_event_t *e_vts; > + dvdnav_cell_change_event_t *e_cell; > + int cur_title, cur_pgcn, cur_pgn, cur_angle, cur_title_unused, > cur_ptt, cur_nb_angles; > + int is_cell_promising = 0; > + pci_t *e_pci; > + dsi_t *e_dsi; > + > + if (buf_size != DVDVIDEO_BLOCK_SIZE) { > + av_log(s, AV_LOG_ERROR, "Invalid buffer size (expected=%d > actual=%d)\n", > + DVDVIDEO_BLOCK_SIZE, buf_size); > + > + return AVERROR(EINVAL); > + } > + > + for (int i = 0; i < DVDVIDEO_MAX_PS_SEARCH_BLOCKS; i++) { > + if (ff_check_interrupt(&s->interrupt_callback)) > + return AVERROR_EXIT; > + > + if (dvdnav_get_next_block(state->dvdnav, nav_buf, &nav_event, > &nav_len) != DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to read next block of > PGC\n"); > + > + goto end_dvdnav_error; > + } > + > + /* STOP event can come at any time and should be honored */ > + if (nav_event == DVDNAV_STOP) > + return AVERROR_EOF; > + > + if (nav_len > DVDVIDEO_BLOCK_SIZE) { > + av_log(s, AV_LOG_ERROR, "Invalid block size (expected<=%d > actual=%d)\n", > + DVDVIDEO_BLOCK_SIZE, nav_len); > + > + return AVERROR_INVALIDDATA; > + } > + > + if (dvdnav_current_title_info(state->dvdnav, &cur_title, > &cur_ptt) != DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to determine current title > coordinates\n"); > + > + goto end_dvdnav_error; > + } > + > + /* we somehow navigated to a menu */ > + if (cur_title == 0 || !dvdnav_is_domain_vts(state->dvdnav)) > + return AVERROR_EOF; > + > + if (dvdnav_current_title_program(state->dvdnav, > &cur_title_unused, &cur_pgcn, &cur_pgn) != DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to determine current PGC > coordinates\n"); > + > + goto end_dvdnav_error; > + } > + > + /* we somehow left the PGC */ > + if (state->in_pgc && cur_pgcn != state->pgcn) > + return AVERROR_EOF; > + > + if (dvdnav_get_angle_info(state->dvdnav, &cur_angle, > &cur_nb_angles) != DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to determine current video > angle\n"); > + > + goto end_dvdnav_error; > + } > + > + av_log(s, nav_event == DVDNAV_BLOCK_OK ? AV_LOG_TRACE : > AV_LOG_DEBUG, > + "new block: i=%d nav_event=%d nav_len=%d cur_title=%d " > + "cur_ptt=%d cur_angle=%d cur_celln=%d cur_pgcn=%d > cur_pgn=%d " > + "play_in_vts=%d play_in_pgc=%d play_in_ps=%d\n", > + i, nav_event, nav_len, cur_title, > + cur_ptt, cur_angle, state->celln, cur_pgcn, cur_pgn, > + state->in_vts, state->in_pgc, state->in_ps); > + > + switch (nav_event) { > + case DVDNAV_VTS_CHANGE: > + if (state->in_vts) > + return AVERROR_EOF; > + > + e_vts = (dvdnav_vts_change_event_t *) nav_buf; > + > + if (e_vts->new_vtsN == state->vtsn && > e_vts->new_domain == DVD_DOMAIN_VTSTitle) > + state->in_vts = 1; > + > + continue; > + case DVDNAV_CELL_CHANGE: > + if (!state->in_vts) > + continue; > + > + e_cell = (dvdnav_cell_change_event_t *) nav_buf; > + is_cell_promising = !c->opt_trim || > dvdvideo_is_cell_promising(s, state->pgc, e_cell->cellN); > + > + av_log(s, AV_LOG_DEBUG, "new cell: prev=%d new=%d > promising=%d\n", > + state->celln, e_cell->cellN, > is_cell_promising); > + > + if (!state->in_ps && !state->in_pgc) { > + if (cur_title == c->opt_title && > + cur_ptt == c->opt_chapter_start && > + cur_pgcn == state->pgcn && > + cur_pgn == state->entry_pgn && > + is_cell_promising) { > + state->in_pgc = 1; > + } > + > + if (c->opt_trim && !is_cell_promising) > + av_log(s, AV_LOG_INFO, "Skipping padding cell > #%d\n", e_cell->cellN); > + } else if (state->celln >= e_cell->cellN || state->pgn > > cur_pgn) { > + return AVERROR_EOF; > + } > + > + state->celln = e_cell->cellN; > + state->ptt = cur_ptt; > + state->pgn = cur_pgn; > + state->nb_cells_played++; > + > + continue; > + case DVDNAV_NAV_PACKET: > + if (!state->in_pgc) > + continue; > + > + if ((state->ptt > 0 && state->ptt > cur_ptt) || > + (c->opt_chapter_end > 0 && cur_ptt > > c->opt_chapter_end)) { > + return AVERROR_EOF; > + } > + > + e_pci = dvdnav_get_current_nav_pci(state->dvdnav); > + e_dsi = dvdnav_get_current_nav_dsi(state->dvdnav); > + > + if (e_pci == NULL || e_dsi == NULL || > + e_pci->pci_gi.vobu_s_ptm > > e_pci->pci_gi.vobu_e_ptm) { > + > + av_log(s, AV_LOG_ERROR, "Invalid NAV packet\n"); > + return AVERROR_INVALIDDATA; > + } > + > + state->vobu_duration = e_pci->pci_gi.vobu_e_ptm - > e_pci->pci_gi.vobu_s_ptm; > + state->pgc_elapsed += state->vobu_duration; > + state->nav_pts = > dvdnav_get_current_time(state->dvdnav); > + state->ptt = cur_ptt; > + state->pgn = cur_pgn; > + > + av_log(s, AV_LOG_DEBUG, > + "NAV packet: s_ptm=%d e_ptm=%d " > + "scr=%d lbn=%d vobu_duration=%d nav_pts=%ld\n", > + e_pci->pci_gi.vobu_s_ptm, > e_pci->pci_gi.vobu_e_ptm, > + e_dsi->dsi_gi.nv_pck_scr, > + e_pci->pci_gi.nv_pck_lbn, state->vobu_duration, > state->nav_pts); > + > + if (!state->in_ps) { > + av_log(s, AV_LOG_DEBUG, "navigation: locked to > program stream\n"); > + > + state->in_ps = 1; > + } else { > + if (state->vobu_e_ptm != e_pci->pci_gi.vobu_s_ptm) > { > + if (flush_cb) > + flush_cb(s); > + > + state->ts_offset += state->vobu_e_ptm - > e_pci->pci_gi.vobu_s_ptm; > + } > + } > + > + state->vobu_e_ptm = e_pci->pci_gi.vobu_e_ptm; > + > + (*p_nav_event) = nav_event; > + > + return nav_len; > + case DVDNAV_BLOCK_OK: > + if (!state->in_ps) { > + if (state->in_pgc) > + i = 0; /* necessary in case we are skipping > junk cells at the beginning */ > + continue; > + } > + > + if (nav_len != DVDVIDEO_BLOCK_SIZE) { > + av_log(s, AV_LOG_ERROR, "Invalid MPEG block size > (expected=%d actual=%d)\n", > + DVDVIDEO_BLOCK_SIZE, > nav_len); > + > + return AVERROR_INVALIDDATA; > + } > + > + if (cur_angle != c->opt_angle) { > + av_log(s, AV_LOG_ERROR, "Unexpected angle change > (expected=%d new=%d)\n", > + c->opt_angle, cur_angle); > + > + return AVERROR_INPUT_CHANGED; > + } > + > + memcpy(buf, &nav_buf, nav_len); > + > + if (state->pgn != cur_pgn) > + av_log(s, AV_LOG_WARNING, "Unexpected PG change > (expected=%d actual=%d); " > + "this could be due to a > missed NAV packet\n", > + state->pgn, cur_pgn); > + > + (*p_nav_event) = nav_event; > + > + return nav_len; > + case DVDNAV_STILL_FRAME: > + case DVDNAV_WAIT: > + case DVDNAV_HOP_CHANNEL: > + case DVDNAV_HIGHLIGHT: > + if (state->in_ps) > + return AVERROR_EOF; > + > + if (nav_event == DVDNAV_STILL_FRAME) { > + if (dvdnav_still_skip(state->dvdnav) != > DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to skip still > image\n"); > + > + goto end_dvdnav_error; > + } > + } > + > + if (nav_event == DVDNAV_WAIT) { > + if (dvdnav_wait_skip(state->dvdnav) != > DVDNAV_STATUS_OK) { > + av_log(s, AV_LOG_ERROR, "Unable to skip WAIT > event\n"); > + > + goto end_dvdnav_error; > + } > + } > + > + continue; > + default: > + continue; > + } > + } > + > + av_log(s, AV_LOG_ERROR, "Unable to find next program stream > block\n"); > + > + return AVERROR_INVALIDDATA; > + > +end_dvdnav_error: > + av_log(s, AV_LOG_ERROR, "dvdnav error (title=%d pgc=%d pg=%d > cell=%d): %s\n", > + cur_title, cur_pgcn, cur_pgn, state->celln, > + dvdnav_err_to_string(state->dvdnav)); > + > + return AVERROR_EXTERNAL; > +} > + > +static int dvdvideo_chapters_setup_simple(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + uint64_t time_prev = 0; > + int64_t total_duration = 0; > + > + int chapter_start = c->opt_chapter_start; > + int chapter_end = c->opt_chapter_end > 0 ? c->opt_chapter_end : > c->play_state.pgc_nb_pg_est - 1; > + > + /* dvdnav_describe_title_chapters() describes PGs rather than > PTTs, so validate our range */ > + if (chapter_start == chapter_end || > + c->play_state.pgc_nb_pg_est == 1 || > + chapter_start > c->play_state.pgc_nb_pg_est || > + chapter_end > c->play_state.pgc_nb_pg_est) { > + > + s->duration = av_rescale_q(c->play_state.pgc_duration_est, > + DVDVIDEO_TIME_BASE_Q, > AV_TIME_BASE_Q); > + return 0; > + } > + > + for (int i = chapter_start - 1; i < chapter_end; i++) { > + uint64_t time_effective = c->play_state.pgc_pg_times_est[i] - > c->play_state.nav_pts; > + > + if (!avpriv_new_chapter(s, i, DVDVIDEO_TIME_BASE_Q, time_prev, > time_effective, NULL)) > + return AVERROR(ENOMEM); > + > + time_prev = time_effective; > + total_duration = time_effective; > + } > + > + if (c->opt_chapter_start == 1 && c->opt_chapter_end == 0) > + s->duration = av_rescale_q(c->play_state.pgc_duration_est, > + DVDVIDEO_TIME_BASE_Q, > AV_TIME_BASE_Q); > + else > + s->duration = av_rescale_q(total_duration, > + DVDVIDEO_TIME_BASE_Q, > AV_TIME_BASE_Q); > + > + return 0; > +} > + > +static int dvdvideo_chapters_setup_preindex(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret = 0, interrupt = 0; > + int nb_chapters = 0, last_ptt = c->opt_chapter_start; > + uint64_t cur_chapter_offset = 0, cur_chapter_duration = 0; > + DVDVideoPlaybackState state = {0}; > + > + uint8_t nav_buf[DVDVIDEO_BLOCK_SIZE]; > + int nav_event; > + > + if (c->opt_chapter_start == c->opt_chapter_end) > + return ret; > + > + if ((ret = dvdvideo_play_open(s, &state)) < 0) > + return ret; > + > + if (state.pgc->nr_of_programs == 1) > + goto end_close; > + > + av_log(s, AV_LOG_INFO, > + "Indexing chapter markers, this will take a long time. > Please wait...\n"); > + > + while (!(interrupt = ff_check_interrupt(&s->interrupt_callback))) { > + ret = dvdvideo_play_next_ps_block(s, &state, nav_buf, > DVDVIDEO_BLOCK_SIZE, > + &nav_event, NULL); > + if (ret < 0 && ret != AVERROR_EOF) > + goto end_close; > + > + if (nav_event != DVDNAV_NAV_PACKET && ret != AVERROR_EOF) > + continue; > + > + if (state.ptt == last_ptt) { > + cur_chapter_duration += state.vobu_duration; > + /* ensure we add the last chapter */ > + if (ret != AVERROR_EOF) > + continue; > + } > + > + if (!avpriv_new_chapter(s, nb_chapters, DVDVIDEO_TIME_BASE_Q, > cur_chapter_offset, > + cur_chapter_offset + > cur_chapter_duration, NULL)) { > + ret = AVERROR(ENOMEM); > + goto end_close; > + } > + > + nb_chapters++; > + cur_chapter_offset += cur_chapter_duration; > + cur_chapter_duration = state.vobu_duration; > + last_ptt = state.ptt; > + > + if (ret == AVERROR_EOF) > + break; > + } > + > + if (interrupt) { > + ret = AVERROR_EXIT; > + goto end_close; > + } > + > + if (ret < 0 && ret != AVERROR_EOF) > + goto end_close; > + > + s->duration = av_rescale_q(state.pgc_elapsed, > DVDVIDEO_TIME_BASE_Q, AV_TIME_BASE_Q); > + > + av_log(s, AV_LOG_INFO, "Chapter marker indexing complete\n"); > + ret = 0; > + > +end_close: > + dvdvideo_play_close(s, &state); > + > + return ret; > +} > + > +static int dvdvideo_video_stream_analyze(AVFormatContext *s, > video_attr_t video_attr, > + DVDVideoVTSVideoStreamEntry > *entry) > +{ > + AVRational framerate; > + int height = 0; > + int width = 0; > + int is_pal = video_attr.video_format == 1; > + > + framerate = is_pal ? (AVRational) { 25, 1 } : (AVRational) { > 30000, 1001 }; > + height = is_pal ? 576 : 480; > + > + if (height > 0) { > + switch (video_attr.picture_size) { > + case 0: /* D1 */ > + width = 720; > + break; > + case 1: /* 4CIF */ > + width = 704; > + break; > + case 2: /* Half D1 */ > + width = 352; > + break; > + case 3: /* CIF */ > + width = 352; > + height /= 2; > + break; > + } > + } > + > + if (!width || !height) { > + av_log(s, AV_LOG_ERROR, "Invalid video stream parameters in > the IFO headers, " > + "this could be an authoring error or > empty title " > + "(video_format=%d picture_size=%d)\n", > + video_attr.video_format, > video_attr.picture_size); > + > + return AVERROR_INVALIDDATA; > + } > + > + entry->startcode = 0x1E0; > + entry->codec_id = !video_attr.mpeg_version ? > AV_CODEC_ID_MPEG1VIDEO : AV_CODEC_ID_MPEG2VIDEO; > + entry->width = width; > + entry->height = height; > + entry->dar = video_attr.display_aspect_ratio ? (AVRational) { 16, > 9 } : (AVRational) { 4, 3 }; > + entry->framerate = framerate; > + entry->has_cc = !is_pal && (video_attr.line21_cc_1 || > video_attr.line21_cc_2); > + > + return 0; > +} > + > +static int dvdvideo_video_stream_add(AVFormatContext *s, > + DVDVideoVTSVideoStreamEntry > *entry, > + enum AVStreamParseType > need_parsing) > +{ > + AVStream *st; > + FFStream *sti; > + > + st = avformat_new_stream(s, NULL); > + if (!st) > + return AVERROR(ENOMEM); > + > + st->id = entry->startcode; > + st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; > + st->codecpar->codec_id = entry->codec_id; > + st->codecpar->width = entry->width; > + st->codecpar->height = entry->height; > + st->codecpar->format = AV_PIX_FMT_YUV420P; > + st->codecpar->color_range = AVCOL_RANGE_MPEG; > + > +#if FF_API_R_FRAME_RATE > + st->r_frame_rate = entry->framerate; > +#endif > + st->avg_frame_rate = entry->framerate; > + > + sti = ffstream(st); > + sti->request_probe = 0; > + sti->need_parsing = need_parsing; > + sti->display_aspect_ratio = entry->dar; > + > + avpriv_set_pts_info(st, DVDVIDEO_PTS_WRAP_BITS, > + DVDVIDEO_TIME_BASE_Q.num, > DVDVIDEO_TIME_BASE_Q.den); > + > + return 0; > +} > + > +static int dvdvideo_video_stream_setup(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret = 0; > + DVDVideoVTSVideoStreamEntry entry = {0}; > + > + if ((ret = dvdvideo_video_stream_analyze(s, > c->vts_ifo->vtsi_mat->vts_video_attr, &entry)) < 0 || > + (ret = dvdvideo_video_stream_add(s, &entry, > AVSTREAM_PARSE_HEADERS)) < 0) { > + > + av_log(s, AV_LOG_ERROR, "Unable to add video stream\n"); > + return ret; > + } > + > + return ret; > +} > + > +static int dvdvideo_audio_stream_analyze(AVFormatContext *s, > audio_attr_t audio_attr, > + uint16_t audio_control, > DVDVideoPGCAudioStreamEntry *entry) > +{ > + int startcode = 0; > + enum AVCodecID codec_id = AV_CODEC_ID_NONE; > + int sample_fmt = AV_SAMPLE_FMT_NONE; > + int sample_rate = 0; > + int bit_depth = 0; > + int nb_channels = 0; > + AVChannelLayout ch_layout = (AVChannelLayout) {0}; > + char lang_dvd[3] = {0}; > + > + int position = (audio_control & 0x7F00) >> 8; > + > + /* XXX(PATCHWELCOME): SDDS is not supported due to lack of sample > material */ > + switch (audio_attr.audio_format) { > + case 0: /* AC3 */ > + codec_id = AV_CODEC_ID_AC3; > + sample_fmt = AV_SAMPLE_FMT_FLTP; > + sample_rate = 48000; > + startcode = 0x80 + position; > + break; > + case 2: /* MP1 */ > + codec_id = AV_CODEC_ID_MP1; > + sample_fmt = audio_attr.quantization ? AV_SAMPLE_FMT_S32 : > AV_SAMPLE_FMT_S16; > + sample_rate = 48000; > + bit_depth = audio_attr.quantization ? 20 : 16; > + startcode = 0x1C0 + position; > + break; > + case 3: /* MP2 */ > + codec_id = AV_CODEC_ID_MP2; > + sample_fmt = audio_attr.quantization ? AV_SAMPLE_FMT_S32 : > AV_SAMPLE_FMT_S16; > + sample_rate = 48000; > + bit_depth = audio_attr.quantization ? 20 : 16; > + startcode = 0x1C0 + position; > + break; > + case 4: /* DVD PCM */ > + codec_id = AV_CODEC_ID_PCM_DVD; > + sample_fmt = audio_attr.quantization ? AV_SAMPLE_FMT_S32 : > AV_SAMPLE_FMT_S16; > + sample_rate = audio_attr.sample_frequency ? 96000 : 48000; > + bit_depth = audio_attr.quantization == 2 ? 24 : > (audio_attr.quantization ? 20 : 16); > + startcode = 0xA0 + position; > + break; > + case 6: /* DCA */ > + codec_id = AV_CODEC_ID_DTS; > + sample_fmt = AV_SAMPLE_FMT_FLTP; > + sample_rate = 48000; > + bit_depth = audio_attr.quantization == 2 ? 24 : > (audio_attr.quantization ? 20 : 16); > + startcode = 0x88 + position; > + break; > + } > + > + nb_channels = audio_attr.channels + 1; > + > + if (codec_id == AV_CODEC_ID_NONE || > + startcode == 0 || > + sample_fmt == AV_SAMPLE_FMT_NONE || > + sample_rate == 0 || > + nb_channels == 0) { > + > + av_log(s, AV_LOG_ERROR, "Invalid audio stream parameters in > the IFO headers, " > + "this could be an authoring error or > dummy title " > + "(stream position %d in IFO)\n", > position); > + return AVERROR_INVALIDDATA; > + } > + > + if (nb_channels == 2) > + ch_layout = (AVChannelLayout) AV_CHANNEL_LAYOUT_STEREO; > + else if (nb_channels == 6) > + ch_layout = (AVChannelLayout) AV_CHANNEL_LAYOUT_5POINT1; > + else if (nb_channels == 7) > + ch_layout = (AVChannelLayout) AV_CHANNEL_LAYOUT_6POINT1; > + else if (nb_channels == 8) > + ch_layout = (AVChannelLayout) AV_CHANNEL_LAYOUT_7POINT1; > + > + /* XXX(PATCHWELCOME): IFO structures have metadata on karaoke > tracks for additional features */ > + if (audio_attr.application_mode == 1) { > + entry->disposition |= AV_DISPOSITION_KARAOKE; > + > + av_log(s, AV_LOG_WARNING, "Extended karaoke metadata is not > supported at this time " > + "(stream id=%d)\n", startcode); > + } > + > + if (audio_attr.code_extension == 2) > + entry->disposition |= AV_DISPOSITION_VISUAL_IMPAIRED; > + if (audio_attr.code_extension == 3 || audio_attr.code_extension == > 4) > + entry->disposition |= AV_DISPOSITION_COMMENT; > + > + AV_WB16(lang_dvd, audio_attr.lang_code); > + > + entry->startcode = startcode; > + entry->codec_id = codec_id; > + entry->sample_rate = sample_rate; > + entry->bit_depth = bit_depth; > + entry->nb_channels = nb_channels; > + entry->ch_layout = ch_layout; > + entry->lang_iso = ff_convert_lang_to(lang_dvd, > AV_LANG_ISO639_2_BIBL); > + > + return 0; > +} > + > +static int dvdvideo_audio_stream_add(AVFormatContext *s, > DVDVideoPGCAudioStreamEntry *entry, > + enum AVStreamParseType > need_parsing) > +{ > + AVStream *st; > + FFStream *sti; > + > + st = avformat_new_stream(s, NULL); > + if (!st) > + return AVERROR(ENOMEM); > + > + st->id = entry->startcode; > + st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; > + st->codecpar->codec_id = entry->codec_id; > + st->codecpar->format = entry->sample_fmt; > + st->codecpar->sample_rate = entry->sample_rate; > + st->codecpar->bits_per_coded_sample = entry->bit_depth; > + st->codecpar->bits_per_raw_sample = entry->bit_depth; > + st->codecpar->ch_layout = entry->ch_layout; > + st->codecpar->ch_layout.nb_channels = entry->nb_channels; > + st->disposition = entry->disposition; > + > + if (entry->lang_iso) > + av_dict_set(&st->metadata, "language", entry->lang_iso, 0); > + > + sti = ffstream(st); > + sti->request_probe = 0; > + sti->need_parsing = need_parsing; > + > + avpriv_set_pts_info(st, DVDVIDEO_PTS_WRAP_BITS, > + DVDVIDEO_TIME_BASE_Q.num, > DVDVIDEO_TIME_BASE_Q.den); > + > + return 0; > +} > + > +static int dvdvideo_audio_stream_add_all(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret = 0; > + > + for (int i = 0; i < c->vts_ifo->vtsi_mat->nr_of_vts_audio_streams; > i++) { > + DVDVideoPGCAudioStreamEntry entry = {0}; > + > + if (!(c->play_state.pgc->audio_control[i] & 0x8000)) > + continue; > + > + if ((ret = dvdvideo_audio_stream_analyze(s, > c->vts_ifo->vtsi_mat->vts_audio_attr[i], > + > c->play_state.pgc->audio_control[i], &entry)) < 0) > + goto break_error; > + > + /* IFO structures can declare duplicate entries for the same > startcode */ > + for (int j = 0; j < s->nb_streams; j++) > + if (s->streams[j]->id == entry.startcode) > + continue; > + > + if ((ret = dvdvideo_audio_stream_add(s, &entry, > AVSTREAM_PARSE_HEADERS)) < 0) > + goto break_error; > + > + continue; > + > +break_error: > + av_log(s, AV_LOG_ERROR, "Unable to add audio stream at > position %d\n", i); > + return ret; > + } > + > + return ret; > +} > + > +static int dvdvideo_subp_stream_analyze(AVFormatContext *s, uint32_t > offset, subp_attr_t subp_attr, > + DVDVideoPGCSubtitleStreamEntry > *entry) > +{ > + char lang_dvd[3] = {0}; > + > + entry->startcode = 0x20 + (offset & 0x1F); > + > + if (subp_attr.lang_extension == 9) > + entry->disposition |= AV_DISPOSITION_FORCED; > + > + AV_WB16(lang_dvd, subp_attr.lang_code); > + entry->lang_iso = ff_convert_lang_to(lang_dvd, > AV_LANG_ISO639_2_BIBL); > + > + return 0; > +} > + > +static int dvdvideo_subp_stream_add(AVFormatContext *s, > DVDVideoPGCSubtitleStreamEntry *entry, > + enum AVStreamParseType > need_parsing) > +{ > + AVStream *st; > + FFStream *sti; > + int ret = 0; > + > + st = avformat_new_stream(s, NULL); > + if (!st) > + return AVERROR(ENOMEM); > + > + st->id = entry->startcode; > + st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE; > + st->codecpar->codec_id = AV_CODEC_ID_DVD_SUBTITLE; > + > + if (entry->lang_iso) > + av_dict_set(&st->metadata, "language", entry->lang_iso, 0); > + > + av_dict_set(&st->metadata, "VIEWPORT", > dvdvideo_subp_viewport_labels[entry->viewport], 0); > + > + st->disposition = entry->disposition; > + > + sti = ffstream(st); > + sti->request_probe = 0; > + sti->need_parsing = need_parsing; > + > + avpriv_set_pts_info(st, DVDVIDEO_PTS_WRAP_BITS, > + DVDVIDEO_TIME_BASE_Q.num, > DVDVIDEO_TIME_BASE_Q.den); > + > + return ret; > +} > + > +static int dvdvideo_subp_stream_add_internal(AVFormatContext *s, > uint32_t offset, > + subp_attr_t subp_attr, > + enum > DVDVideoSubpictureViewport viewport) > +{ > + int ret = 0; > + DVDVideoPGCSubtitleStreamEntry entry = {0}; > + > + entry.viewport = viewport; > + > + if ((ret = dvdvideo_subp_stream_analyze(s, offset, subp_attr, > &entry)) < 0) > + goto end_error; > + > + /* IFO structures can declare duplicate entries for the same > startcode */ > + for (int i = 0; i < s->nb_streams; i++) > + if (s->streams[i]->id == entry.startcode) > + goto end; > + > + if ((ret = dvdvideo_subp_stream_add(s, &entry, > AVSTREAM_PARSE_HEADERS)) < 0) > + goto end_error; > + > + goto end; > + > +end_error: > + av_log(s, AV_LOG_ERROR, "Unable to add subtitle stream\n"); > + > +end: > + return ret; > +} > + > +static int dvdvideo_subp_stream_add_all(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + for (int i = 0; i < c->vts_ifo->vtsi_mat->nr_of_vts_subp_streams; > i++) { > + int ret = 0; > + uint32_t subp_control; > + subp_attr_t subp_attr; > + video_attr_t video_attr; > + > + subp_control = c->play_state.pgc->subp_control[i]; > + if (!(subp_control & 0x80000000)) > + continue; > + > + /* there can be several presentations for one SPU */ > + /* the DAR check is flexible in order to support weird > authoring */ > + video_attr = c->vts_ifo->vtsi_mat->vts_video_attr; > + subp_attr = c->vts_ifo->vtsi_mat->vts_subp_attr[i]; > + > + /* 4:3 */ > + if (!video_attr.display_aspect_ratio) { > + if ((ret = dvdvideo_subp_stream_add_internal(s, > subp_control >> 24, subp_attr, > + > DVDVIDEO_SUBP_VIEWPORT_FULLSCREEN)) < 0) > + return ret; > + > + continue; > + } > + > + /* 16:9 */ > + if (( ret = dvdvideo_subp_stream_add_internal(s, > subp_control >> 16, subp_attr, > + > DVDVIDEO_SUBP_VIEWPORT_WIDESCREEN)) < 0) > + return ret; > + > + /* 16:9 letterbox */ > + if (video_attr.permitted_df == 2 || video_attr.permitted_df == > 0) > + if ((ret = dvdvideo_subp_stream_add_internal(s, > subp_control >> 8, subp_attr, > + > DVDVIDEO_SUBP_VIEWPORT_LETTERBOX)) < 0) > + return ret; > + > + /* 16:9 pan-and-scan */ > + if (video_attr.permitted_df == 1 || video_attr.permitted_df == > 0) > + if ((ret = dvdvideo_subp_stream_add_internal(s, > subp_control, subp_attr, > + > DVDVIDEO_SUBP_VIEWPORT_PANSCAN)) < 0) > + return ret; > + } > + > + return 0; > +} > + > +static void dvdvideo_subdemux_flush(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + if (!c->segment_started) > + return; > + > + av_log(s, AV_LOG_DEBUG, "flushing sub-demuxer\n"); > + avio_flush(&c->mpeg_pb.pub); > + ff_read_frame_flush(c->mpeg_ctx); > + c->segment_started = 0; > +} > + > +static int dvdvideo_subdemux_read_data(void *opaque, uint8_t *buf, int > buf_size) > +{ > + AVFormatContext *s = opaque; > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret = 0; > + int nav_event; > + > + if (c->play_end) > + return AVERROR_EOF; > + > + ret = dvdvideo_play_next_ps_block(opaque, &c->play_state, buf, > buf_size, > + &nav_event, > dvdvideo_subdemux_flush); > + > + if (ret == AVERROR_EOF) { > + c->mpeg_pb.pub.eof_reached = 1; > + c->play_end = 1; > + > + return AVERROR_EOF; > + } > + > + if (ret >= 0 && nav_event == DVDNAV_NAV_PACKET) > + return FFERROR_REDO; > + > + return ret; > +} > + > +static void dvdvideo_subdemux_close(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + av_freep(&c->mpeg_pb.pub.buffer); > + av_freep(&c->mpeg_pb); > + avformat_close_input(&c->mpeg_ctx); > +} > + > +static int dvdvideo_subdemux_open(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret = 0; > + > + if (!(c->mpeg_fmt = av_find_input_format("mpeg"))) > + return AVERROR_DEMUXER_NOT_FOUND; > + > + if (!(c->mpeg_ctx = avformat_alloc_context())) > + return AVERROR(ENOMEM); > + > + if (!(c->mpeg_buf = av_mallocz(DVDVIDEO_BLOCK_SIZE))) { > + avformat_free_context(c->mpeg_ctx); > + c->mpeg_ctx = NULL; > + > + return AVERROR(ENOMEM); > + } > + > + ffio_init_context(&c->mpeg_pb, c->mpeg_buf, DVDVIDEO_BLOCK_SIZE, > 0, s, > + dvdvideo_subdemux_read_data, NULL, NULL); > + c->mpeg_pb.pub.seekable = 0; > + > + if ((ret = ff_copy_whiteblacklists(c->mpeg_ctx, s)) < 0) { > + avformat_free_context(c->mpeg_ctx); > + c->mpeg_ctx = NULL; > + > + return ret; > + } > + > + c->mpeg_ctx->flags = AVFMT_FLAG_CUSTOM_IO | AVFMT_FLAG_GENPTS; > + c->mpeg_ctx->ctx_flags |= AVFMTCTX_UNSEEKABLE; > + c->mpeg_ctx->probesize = 0; > + c->mpeg_ctx->max_analyze_duration = 0; > + c->mpeg_ctx->interrupt_callback = s->interrupt_callback; > + c->mpeg_ctx->pb = &c->mpeg_pb.pub; > + c->mpeg_ctx->correct_ts_overflow = 0; > + c->mpeg_ctx->io_open = NULL; > + > + return avformat_open_input(&c->mpeg_ctx, "", c->mpeg_fmt, NULL); > +} > + > +static int dvdvideo_read_header(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret = 0; > + > + if (c->opt_title == 0) { > + av_log(s, AV_LOG_INFO, "Defaulting to title #1. " > + "This is not always the main feature, > validation suggested.\n"); > + > + c->opt_title = 1; > + } > + > + if (c->opt_pgc) { > + if (c->opt_pg == 0) > + av_log(s, AV_LOG_ERROR, "Invalid coordinates. If -pgc is > set, -pg must be set too.\n"); > + else if (c->opt_chapter_start > 1 || c->opt_chapter_end > 0 || > c->opt_preindex) > + av_log(s, AV_LOG_ERROR, "-pgc is not compatible with the > -preindex or " > + "-chapter_start/-chapter_end > options\n"); > + > + return AVERROR(EINVAL); > + } > + > + if ((ret = dvdvideo_ifo_open(s)) < 0) > + return ret; > + > + if (c->opt_preindex && (ret = dvdvideo_chapters_setup_preindex(s)) > < 0) > + return ret; > + > + if ((ret = dvdvideo_play_open(s, &c->play_state)) < 0 || > + (ret = dvdvideo_subdemux_open(s)) < 0 || > + (ret = dvdvideo_video_stream_setup(s)) < 0 || > + (ret = dvdvideo_audio_stream_add_all(s)) < 0 || > + (ret = dvdvideo_subp_stream_add_all(s)) < 0) > + return ret; > + > + if (!c->opt_preindex) > + return dvdvideo_chapters_setup_simple(s); > + > + return ret; > +} > + > +static int dvdvideo_read_packet(AVFormatContext *s, AVPacket *pkt) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + int ret; > + enum AVMediaType st_type; > + int found_stream = 0; > + > + if (c->play_end) > + return AVERROR_EOF; > + > + ret = av_read_frame(c->mpeg_ctx, pkt); > + > + if (ret < 0) > + return ret; > + > + if (!c->segment_started) > + c->segment_started = 1; > + > + st_type = > c->mpeg_ctx->streams[pkt->stream_index]->codecpar->codec_type; > + > + /* map the subdemuxer stream to the parent demuxer's stream (by > startcode) */ > + for (int i = 0; i < s->nb_streams; i++) { > + if (s->streams[i]->id == > c->mpeg_ctx->streams[pkt->stream_index]->id) { > + pkt->stream_index = s->streams[i]->index; > + found_stream = 1; > + break; > + } > + } > + > + if (!found_stream) { > + av_log(s, AV_LOG_DEBUG, "discarding frame with stream that was > not in IFO headers " > + "(stream id=%d)\n", > c->mpeg_ctx->streams[pkt->stream_index]->id); > + > + return FFERROR_REDO; > + } > + > + if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE) { > + if (!c->play_started) { > + /* try to start at the beginning of a GOP */ > + if (st_type != AVMEDIA_TYPE_VIDEO || !(pkt->flags & > AV_PKT_FLAG_KEY)) { > + av_log(s, AV_LOG_VERBOSE, "Discarding packet which is > not a video keyframe or " > + "with unset PTS/DTS at > start\n"); > + return FFERROR_REDO; > + } > + > + c->first_pts = pkt->pts; > + c->play_started = 1; > + } > + > + pkt->pts += c->play_state.ts_offset - c->first_pts; > + pkt->dts += c->play_state.ts_offset - c->first_pts; > + > + if (pkt->pts < 0) { > + av_log(s, AV_LOG_VERBOSE, "Discarding packet with negative > PTS (st=%d pts=%ld), " > + "this is OK at start of > playback\n", > + pkt->stream_index, pkt->pts); > + > + return FFERROR_REDO; > + } > + } else { > + av_log(s, AV_LOG_WARNING, "Unset PTS or DTS @ st=%d pts=%ld > dts=%ld\n", > + pkt->stream_index, pkt->pts, > pkt->dts); > + } > + > + av_log(s, AV_LOG_TRACE, "st=%d pts=%ld dts=%ld ts_offset=%ld > first_pts=%ld\n", > + pkt->stream_index, pkt->pts, pkt->dts, > + c->play_state.ts_offset, c->first_pts); > + > + return c->play_end ? AVERROR_EOF : 0; > +} > + > +static int dvdvideo_close(AVFormatContext *s) > +{ > + DVDVideoDemuxContext *c = s->priv_data; > + > + dvdvideo_subdemux_close(s); > + dvdvideo_play_close(s, &c->play_state); > + dvdvideo_ifo_close(s); > + > + return 0; > +} > + > +#define OFFSET(x) offsetof(DVDVideoDemuxContext, x) > +static const AVOption dvdvideo_options[] = { > + {"angle", "playback angle number", > OFFSET(opt_angle), AV_OPT_TYPE_INT, { .i64=1 > }, 1, 9, AV_OPT_FLAG_DECODING_PARAM }, > + {"chapter_end", "exit chapter (PTT) number (0=end)", > OFFSET(opt_chapter_end), AV_OPT_TYPE_INT, { .i64=0 > }, 0, 99, AV_OPT_FLAG_DECODING_PARAM }, > + {"chapter_start", "entry chapter (PTT) number", > OFFSET(opt_chapter_start), AV_OPT_TYPE_INT, { .i64=1 > }, 1, 99, AV_OPT_FLAG_DECODING_PARAM }, > + {"pg", "entry PG number (0=auto)", > OFFSET(opt_pg), AV_OPT_TYPE_INT, { .i64=0 > }, 0, 255, AV_OPT_FLAG_DECODING_PARAM }, > + {"pgc", "entry PGC number (0=auto)", > OFFSET(opt_pgc), AV_OPT_TYPE_INT, { .i64=0 > }, 0, 999, AV_OPT_FLAG_DECODING_PARAM }, > + {"preindex", "enable for accurate chapter markers, slow > (2-pass read)", OFFSET(opt_preindex), AV_OPT_TYPE_BOOL, { > .i64=0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM }, > + {"region", "playback region number (0=free)", > OFFSET(opt_region), AV_OPT_TYPE_INT, { .i64=0 > }, 0, 8, AV_OPT_FLAG_DECODING_PARAM }, > + {"title", "title number (0=auto)", > OFFSET(opt_title), AV_OPT_TYPE_INT, { .i64=0 > }, 0, 99, AV_OPT_FLAG_DECODING_PARAM }, > + {"trim", "trim padding cells from start", > OFFSET(opt_trim), AV_OPT_TYPE_BOOL, { .i64=1 > }, 0, 1, AV_OPT_FLAG_DECODING_PARAM }, > + {NULL} > +}; > + > +static const AVClass dvdvideo_class = { > + .class_name = "DVD-Video demuxer", > + .item_name = av_default_item_name, > + .option = dvdvideo_options, > + .version = LIBAVUTIL_VERSION_INT > +}; > + > +const AVInputFormat ff_dvdvideo_demuxer = { > + .name = "dvdvideo", > + .long_name = NULL_IF_CONFIG_SMALL("DVD-Video"), > + .priv_class = &dvdvideo_class, > + .priv_data_size = sizeof(DVDVideoDemuxContext), > + .flags = AVFMT_NOFILE | AVFMT_SHOW_IDS | AVFMT_TS_DISCONT > | AVFMT_NO_BYTE_SEEK | AVFMT_NOGENSEARCH | AVFMT_NOBINSEARCH, > + .flags_internal = FF_FMT_INIT_CLEANUP, > + .read_close = dvdvideo_close, > + .read_header = dvdvideo_read_header, > + .read_packet = dvdvideo_read_packet > +}; > > _______________________________________________ > ffmpeg-cvslog mailing list > ffmpeg-cvs...@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog > > To unsubscribe, visit link above, or email > ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe". -- Jean-Baptiste Kempf - President +33 672 704 734 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
