@@ -289,8 +289,10 @@ This demuxer accepts the following option:
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.
+Can directly ingest DVD titles, specifically sequential PGCs, into
+a conversion pipeline. Menu assets, such as background video or audio,
+can also be demuxed given the menu's coordinates (at best effort).
+Seeking is 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.
@@ -347,37 +349,56 @@ This demuxer accepts the following options:
@item title @var{int}
The title number to play. Must be set if @option{pgc} and @option{pg} are not set.
+Not applicable to menus.
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.
+The chapter, or PTT (part-of-title), number to start at. Not applicable to menus.
+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.
+The chapter, or PTT (part-of-title), number to end at. Not applicable to menus.
+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.
+Not applicable to menus.
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".
+of a real DVD drive, if used as an input. Not applicable to menus.
+Default is 0, "world".
+
+@item menu @var{bool}
+Demux menu assets instead of navigating a title. Requires exact coordinates
+of the menu (@option{menu_lu}, @option{menu_vts}, @option{pgc}, @option{pg}).
+Default is false.
+
+@item menu_lu @var{int}
+The menu language to demux. In DVD, menus are grouped by language.
+Default is 0, the first language unit.
+
+@item menu_vts @var{int}
+The VTS where the menu lives, or 0 if it is a VMG menu (root-level).
+Default is 0, VMG menu.
@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.
+Must be explicitly set for menus.
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}.
+Default is 0, automatically resolve from value of @option{title}, or
+start from the beginning (PG 1) of the menu.
@item preindex @var{bool}
Enable this to have accurate chapter (PTT) markers and duration measurement,
@@ -385,6 +406,7 @@ 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}.
+Not applicable to menus.
Default is 0, false.
@item trim @var{bool}
@@ -392,6 +414,7 @@ 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.
+Not applicable to menus.
Default is 1, true.
@end table
@@ -416,6 +439,12 @@ 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
+
+@item
+Demux menu with language 1 from VTS 1, PGC 1, starting at PG 1:
+@example
+ffmpeg -f dvdvideo -menu 1 -menu_lu 1 -menu_vts 1 -pgc 1 -pg 1 -i <path to DVD> ...
+@end example
@end itemize
@section ea
@@ -57,9 +57,11 @@
#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
+#define PCI_START_BYTE 45 /* complement dvdread's DSI_START_BYTE */
+static const uint8_t dvdvideo_nav_header[4] = { 0x00, 0x00, 0x01, 0xBF };
+
enum DVDVideoSubpictureViewport {
DVDVIDEO_SUBP_VIEWPORT_FULLSCREEN,
DVDVIDEO_SUBP_VIEWPORT_WIDESCREEN,
@@ -121,6 +123,15 @@ typedef struct DVDVideoPlaybackState {
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 */
+
+ /* the following fields are only used for menu playback */
+ int celln_start; /* starting cell number */
+ int celln_end; /* ending cell number */
+ int sector_offset; /* current sector relative to the current VOB */
+ uint32_t sector_end; /* end sector relative to the current VOBU */
+ uint32_t vobu_next; /* the next VOBU pointer */
+ uint32_t vobu_remaining; /* remaining blocks for current VOBU */
+ dvd_file_t *vob_file; /* handle to the menu VOB (VMG or VTS) */
} DVDVideoPlaybackState;
typedef struct DVDVideoDemuxContext {
@@ -130,6 +141,9 @@ typedef struct DVDVideoDemuxContext {
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_menu; /* demux menu domain instead of title domain */
+ int opt_menu_lu; /* the menu language unit (logical grouping) */
+ int opt_menu_vts; /* the menu VTS, or 0 for VMG (main menu) */
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) */
@@ -226,6 +240,16 @@ static int dvdvideo_ifo_open(AVFormatContext *s)
return AVERROR_EXTERNAL;
}
+ if (c->opt_menu) {
+ if (c->opt_menu_vts > 0 && !(c->vts_ifo = ifoOpen(c->dvdread, c->opt_menu_vts))) {
+ av_log(s, AV_LOG_ERROR, "Unable to open IFO structure for VTS %d\n", c->opt_menu_vts);
+
+ return AVERROR_EXTERNAL;
+ }
+
+ return 0;
+ }
+
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);
@@ -289,6 +313,183 @@ static int dvdvideo_is_pgc_promising(AVFormatContext *s, pgc_t *pgc)
return 0;
}
+static void dvdvideo_menu_close(AVFormatContext *s, DVDVideoPlaybackState *state)
+{
+ if (state->vob_file)
+ DVDCloseFile(state->vob_file);
+}
+
+static int dvdvideo_menu_open(AVFormatContext *s, DVDVideoPlaybackState *state)
+{
+ DVDVideoDemuxContext *c = s->priv_data;
+ pgci_ut_t *pgci_ut;
+
+ pgci_ut = c->opt_menu_vts ? c->vts_ifo->pgci_ut : c->vmg_ifo->pgci_ut;
+ if (!pgci_ut) {
+ av_log(s, AV_LOG_ERROR, "Invalid PGC table for menu [LU %d, PGC %d]\n",
+ c->opt_menu_lu, c->opt_pgc);
+
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (c->opt_pgc < 1 ||
+ c->opt_menu_lu < 1 ||
+ c->opt_menu_lu > pgci_ut->nr_of_lus ||
+ c->opt_pgc > pgci_ut->lu[c->opt_menu_lu - 1].pgcit->nr_of_pgci_srp) {
+
+ av_log(s, AV_LOG_ERROR, "Menu [LU %d, PGC %d] not found\n", c->opt_menu_lu, c->opt_pgc);
+
+ return AVERROR(EINVAL);
+ }
+
+ /* make sure the PGC is valid */
+ state->pgcn = c->opt_pgc - 1;
+ state->pgc = pgci_ut->lu[c->opt_menu_lu - 1].pgcit->pgci_srp[c->opt_pgc - 1].pgc;
+ if (!state->pgc || !state->pgc->program_map || !state->pgc->cell_playback) {
+ av_log(s, AV_LOG_ERROR, "Invalid PGC structure for menu [LU %d, PGC %d]\n",
+ c->opt_menu_lu, c->opt_pgc);
+
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* make sure the PG is valid */
+ state->entry_pgn = c->opt_pg;
+ if (state->entry_pgn < 1 || state->entry_pgn > state->pgc->nr_of_programs) {
+ av_log(s, AV_LOG_ERROR, "Entry PG %d not found\n", state->entry_pgn);
+
+ return AVERROR(EINVAL);
+ }
+
+ /* make sure the program map isn't leading us to nowhere */
+ state->celln_start = state->pgc->program_map[state->entry_pgn - 1];
+ state->celln_end = state->pgc->nr_of_cells;
+ state->celln = state->celln_start;
+ if (state->celln_start > state->pgc->nr_of_cells) {
+ av_log(s, AV_LOG_ERROR, "Invalid PGC structure: program map points to unknown cell\n");
+
+ return AVERROR_INVALIDDATA;
+ }
+
+ state->sector_end = state->pgc->cell_playback[state->celln - 1].last_sector;
+ state->vobu_next = state->pgc->cell_playback[state->celln - 1].first_sector;
+ state->sector_offset = state->vobu_next;
+
+ if (c->opt_menu_vts > 0)
+ state->in_vts = 1;
+
+ if (!(state->vob_file = DVDOpenFile(c->dvdread, c->opt_menu_vts, DVD_READ_MENU_VOBS))) {
+ av_log(s, AV_LOG_ERROR, !c->opt_menu_vts ?
+ "Unable to open main menu VOB (VIDEO_TS.VOB)\n" :
+ "Unable to open menu VOBs for VTS %d\n", c->opt_menu_vts);
+
+ return AVERROR_EXTERNAL;
+ }
+
+ return 0;
+}
+
+static int dvdvideo_menu_next_ps_block(AVFormatContext *s, DVDVideoPlaybackState *state,
+ uint8_t *buf, int buf_size,
+ void (*flush_cb)(AVFormatContext *s))
+{
+ ssize_t blocks_read = 0;
+ uint8_t read_buf[DVDVIDEO_BLOCK_SIZE] = {0};
+ pci_t pci = (pci_t) {0};
+ dsi_t dsi = (dsi_t) {0};
+
+ 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);
+ }
+
+ /* we were at the end of a vobu, so now go to the next one or EOF */
+ if (!state->vobu_remaining && state->in_pgc) {
+ if (state->vobu_next == SRI_END_OF_CELL) {
+ if (state->celln == state->celln_end && state->sector_offset > state->sector_end)
+ return AVERROR_EOF;
+
+ state->celln++;
+ state->sector_offset = state->pgc->cell_playback[state->celln - 1].first_sector;
+ state->sector_end = state->pgc->cell_playback[state->celln - 1].last_sector;
+ } else {
+ state->sector_offset = state->vobu_next;
+ }
+ }
+
+ /* continue reading the VOBU */
+ av_log(s, AV_LOG_TRACE, "reading block at offset %d\n", state->sector_offset);
+
+ blocks_read = DVDReadBlocks(state->vob_file, state->sector_offset, 1, read_buf);
+ if (blocks_read != 1) {
+ av_log(s, AV_LOG_ERROR, "Unable to read VOB block: offset=%d blocks_read=%ld\n",
+ state->sector_offset, blocks_read);
+
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* we are at the start of a VOBU, so we are expecting a NAV packet */
+ if (!state->vobu_remaining) {
+ if (!memcmp(&read_buf[PCI_START_BYTE - 4], dvdvideo_nav_header, 4) ||
+ !memcmp(&read_buf[DSI_START_BYTE - 4], dvdvideo_nav_header, 4) ||
+ read_buf[PCI_START_BYTE - 1] != 0x00 ||
+ read_buf[DSI_START_BYTE - 1] != 0x01) {
+
+ av_log(s, AV_LOG_ERROR, "Invalid NAV packet at offset %d: PCI or DSI header mismatch\n",
+ state->sector_offset);
+
+ return AVERROR_INVALIDDATA;
+ }
+
+ navRead_PCI(&pci, &read_buf[PCI_START_BYTE]);
+ navRead_DSI(&dsi, &read_buf[DSI_START_BYTE]);
+
+ if (!pci.pci_gi.vobu_s_ptm ||
+ !pci.pci_gi.vobu_e_ptm ||
+ pci.pci_gi.vobu_s_ptm > pci.pci_gi.vobu_e_ptm) {
+
+ av_log(s, AV_LOG_ERROR, "Invalid NAV packet at offset %d: PCI header is invalid\n",
+ state->sector_offset);
+
+ return AVERROR_INVALIDDATA;
+ }
+
+ state->vobu_remaining = dsi.dsi_gi.vobu_ea;
+ state->vobu_next = dsi.vobu_sri.next_vobu == SRI_END_OF_CELL ? SRI_END_OF_CELL :
+ dsi.dsi_gi.nv_pck_lbn + (dsi.vobu_sri.next_vobu & 0x7FFFFFFF);
+ state->sector_offset++;
+
+ if (state->in_pgc) {
+ if (state->vobu_e_ptm != pci.pci_gi.vobu_s_ptm) {
+ if (flush_cb)
+ flush_cb(s);
+
+ state->ts_offset += state->vobu_e_ptm - pci.pci_gi.vobu_s_ptm;
+ }
+ } else {
+ state->in_pgc = 1;
+ state->in_ps = 1;
+ }
+
+ state->vobu_e_ptm = pci.pci_gi.vobu_e_ptm;
+
+ av_log(s, AV_LOG_DEBUG, "NAV packet: sector=%d "
+ "vobu_s_ptm=%d vobu_e_ptm=%d ts_offset=%ld\n",
+ dsi.dsi_gi.nv_pck_lbn,
+ pci.pci_gi.vobu_s_ptm, pci.pci_gi.vobu_e_ptm, state->ts_offset);
+
+ return FFERROR_REDO;
+ }
+
+ /* we are in the middle of a VOBU, so pass on the PS packet */
+ memcpy(buf, &read_buf, DVDVIDEO_BLOCK_SIZE);
+ state->sector_offset++;
+ state->vobu_remaining--;
+
+ return DVDVIDEO_BLOCK_SIZE;
+}
+
static void dvdvideo_play_close(AVFormatContext *s, DVDVideoPlaybackState *state)
{
if (!state->dvdnav)
@@ -857,8 +1058,15 @@ static int dvdvideo_video_stream_setup(AVFormatContext *s)
int ret = 0;
DVDVideoVTSVideoStreamEntry entry = {0};
+ video_attr_t video_attr;
- if ((ret = dvdvideo_video_stream_analyze(s, c->vts_ifo->vtsi_mat->vts_video_attr, &entry)) < 0 ||
+ if (c->opt_menu)
+ video_attr = !c->opt_menu_vts ? c->vmg_ifo->vmgi_mat->vmgm_video_attr :
+ c->vts_ifo->vtsi_mat->vtsm_video_attr;
+ else
+ video_attr = c->vts_ifo->vtsi_mat->vts_video_attr;
+
+ if ((ret = dvdvideo_video_stream_analyze(s, 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");
@@ -1010,15 +1218,29 @@ static int dvdvideo_audio_stream_add_all(AVFormatContext *s)
DVDVideoDemuxContext *c = s->priv_data;
int ret = 0;
+ int nb_streams;
- for (int i = 0; i < c->vts_ifo->vtsi_mat->nr_of_vts_audio_streams; i++) {
+ if (c->opt_menu)
+ nb_streams = !c->opt_menu_vts ? c->vmg_ifo->vmgi_mat->nr_of_vmgm_audio_streams :
+ c->vts_ifo->vtsi_mat->nr_of_vtsm_audio_streams;
+ else
+ nb_streams = c->vts_ifo->vtsi_mat->nr_of_vts_audio_streams;
+
+ for (int i = 0; i < nb_streams; i++) {
DVDVideoPGCAudioStreamEntry entry = {0};
+ audio_attr_t audio_attr;
+
+ if (c->opt_menu)
+ audio_attr = !c->opt_menu_vts ? c->vmg_ifo->vmgi_mat->vmgm_audio_attr :
+ c->vts_ifo->vtsi_mat->vtsm_audio_attr;
+ else
+ audio_attr = c->vts_ifo->vtsi_mat->vts_audio_attr[i];
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)
+ if ((ret = dvdvideo_audio_stream_analyze(s, audio_attr, c->play_state.pgc->audio_control[i],
+ &entry)) < 0)
goto break_error;
/* IFO structures can declare duplicate entries for the same startcode */
@@ -1129,7 +1351,16 @@ 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 nb_streams;
+
+ if (c->opt_menu)
+ nb_streams = !c->opt_menu_vts ? c->vmg_ifo->vmgi_mat->nr_of_vmgm_subp_streams :
+ c->vts_ifo->vtsi_mat->nr_of_vtsm_subp_streams;
+ else
+ nb_streams = c->vts_ifo->vtsi_mat->nr_of_vts_subp_streams;
+
+
+ for (int i = 0; i < nb_streams; i++) {
int ret = 0;
uint32_t subp_control;
subp_attr_t subp_attr;
@@ -1141,8 +1372,16 @@ static int dvdvideo_subp_stream_add_all(AVFormatContext *s)
/* 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];
+ if (c->opt_menu) {
+ video_attr = !c->opt_menu_vts ? c->vmg_ifo->vmgi_mat->vmgm_video_attr :
+ c->vts_ifo->vtsi_mat->vtsm_video_attr;
+
+ subp_attr = !c->opt_menu_vts ? c->vmg_ifo->vmgi_mat->vmgm_subp_attr :
+ c->vts_ifo->vtsi_mat->vtsm_subp_attr;
+ } else {
+ 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) {
@@ -1198,8 +1437,12 @@ static int dvdvideo_subdemux_read_data(void *opaque, uint8_t *buf, int buf_size)
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 (c->opt_menu)
+ ret = dvdvideo_menu_next_ps_block(s, &c->play_state, buf, buf_size,
+ dvdvideo_subdemux_flush);
+ else
+ 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;
@@ -1263,6 +1506,47 @@ static int dvdvideo_read_header(AVFormatContext *s)
int ret = 0;
+ if (c->opt_menu) {
+ if (c->opt_region ||
+ c->opt_title > 1 ||
+ c->opt_preindex ||
+ c->opt_chapter_start > 1 ||
+ c->opt_chapter_end > 0) {
+ av_log(s, AV_LOG_ERROR, "-menu is not compatible with the -region, -title, "
+ "-preindex, or -chapter_start/-chapter_end options\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (!c->opt_pgc) {
+ av_log(s, AV_LOG_ERROR, "If -menu is enabled, -pgc must be set to a non-zero value\n");
+
+ return AVERROR(EINVAL);
+ }
+
+ if (!c->opt_menu_lu) {
+ av_log(s, AV_LOG_INFO, "Defaulting to menu language unit #1. "
+ "This is not always desirable, validation suggested.\n");
+
+ c->opt_menu_lu = 1;
+ }
+
+ if (!c->opt_pg) {
+ av_log(s, AV_LOG_INFO, "Defaulting to menu PG #1. "
+ "This is not always desirable, validation suggested.\n");
+
+ c->opt_pg = 1;
+ }
+
+ if ((ret = dvdvideo_ifo_open(s)) < 0 ||
+ (ret = dvdvideo_menu_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)
+ return ret;
+
+ return 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");
@@ -1378,7 +1662,12 @@ static int dvdvideo_close(AVFormatContext *s)
DVDVideoDemuxContext *c = s->priv_data;
dvdvideo_subdemux_close(s);
- dvdvideo_play_close(s, &c->play_state);
+
+ if (c->opt_menu)
+ dvdvideo_menu_close(s, &c->play_state);
+ else
+ dvdvideo_play_close(s, &c->play_state);
+
dvdvideo_ifo_close(s);
return 0;
@@ -1389,6 +1678,9 @@ 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 },
+ {"menu", "demux menu domain", OFFSET(opt_menu), AV_OPT_TYPE_BOOL, { .i64=0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+ {"menu_lu", "menu language unit (0=auto)", OFFSET(opt_menu_lu), AV_OPT_TYPE_INT, { .i64=0 }, 0, 99, AV_OPT_FLAG_DECODING_PARAM },
+ {"menu_vts", "menu VTS (0=VMG main menu)", OFFSET(opt_menu_vts), AV_OPT_TYPE_INT, { .i64=0 }, 0, 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 },
Fixes compiler warning introduced in v2 due to incorrect printf format for ssize_t. Apologies for the inconvenience. Signed-off-by: Marth64 <marth64@proxyid.net> --- doc/demuxers.texi | 43 +++++- libavformat/dvdvideodec.c | 314 ++++++++++++++++++++++++++++++++++++-- 2 files changed, 339 insertions(+), 18 deletions(-)