Staging
v0.5.1
v0.5.1
Revision f1b94134a4b879bc55c3dacdb496690c8ebdc03f authored by Vikram Fugro on 11 March 2016, 12:16:11 UTC, committed by Jean-Baptiste Kempf on 11 March 2016, 14:57:34 UTC
Allocate the output vlc pictures with dimensions padded, as requested by the decoder (for alignments). This further increases the chances of direct rendering. Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
1 parent 6c813cb
decklink.cpp
/*****************************************************************************
* decklink.cpp: BlackMagic DeckLink SDI input module
*****************************************************************************
* Copyright (C) 2010 Steinar H. Gunderson
* Copyright (C) 2012-2014 Rafaël Carré
*
* Authors: Steinar H. Gunderson <steinar+vlc@gunderson.no>
Rafaël Carré <funman@videolanorg>
*
* This program 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.
*
* This library 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_demux.h>
#include <vlc_atomic.h>
#include <arpa/inet.h>
#include <DeckLinkAPI.h>
#include <DeckLinkAPIDispatch.cpp>
#include "sdi.h"
static int Open (vlc_object_t *);
static void Close(vlc_object_t *);
#define CARD_INDEX_TEXT N_("Input card to use")
#define CARD_INDEX_LONGTEXT N_( \
"DeckLink capture card to use, if multiple exist. " \
"The cards are numbered from 0.")
#define MODE_TEXT N_("Desired input video mode. Leave empty for autodetection.")
#define MODE_LONGTEXT N_( \
"Desired input video mode for DeckLink captures. " \
"This value should be a FOURCC code in textual " \
"form, e.g. \"ntsc\".")
#define AUDIO_CONNECTION_TEXT N_("Audio connection")
#define AUDIO_CONNECTION_LONGTEXT N_( \
"Audio connection to use for DeckLink captures. " \
"Valid choices: embedded, aesebu, analog. " \
"Leave blank for card default.")
#define RATE_TEXT N_("Audio samplerate (Hz)")
#define RATE_LONGTEXT N_( \
"Audio sampling rate (in hertz) for DeckLink captures. " \
"0 disables audio input.")
#define CHANNELS_TEXT N_("Number of audio channels")
#define CHANNELS_LONGTEXT N_( \
"Number of input audio channels for DeckLink captures. " \
"Must be 2, 8 or 16. 0 disables audio input.")
#define VIDEO_CONNECTION_TEXT N_("Video connection")
#define VIDEO_CONNECTION_LONGTEXT N_( \
"Video connection to use for DeckLink captures. " \
"Valid choices: sdi, hdmi, opticalsdi, component, " \
"composite, svideo. " \
"Leave blank for card default.")
static const char *const ppsz_videoconns[] = {
"sdi", "hdmi", "opticalsdi", "component", "composite", "svideo"
};
static const char *const ppsz_videoconns_text[] = {
N_("SDI"), N_("HDMI"), N_("Optical SDI"), N_("Component"), N_("Composite"), N_("S-Video")
};
static const char *const ppsz_audioconns[] = {
"embedded", "aesebu", "analog"
};
static const char *const ppsz_audioconns_text[] = {
N_("Embedded"), N_("AES/EBU"), N_("Analog")
};
#define ASPECT_RATIO_TEXT N_("Aspect ratio")
#define ASPECT_RATIO_LONGTEXT N_(\
"Aspect ratio (4:3, 16:9). Default assumes square pixels.")
vlc_module_begin ()
set_shortname(N_("DeckLink"))
set_description(N_("Blackmagic DeckLink SDI input"))
set_category(CAT_INPUT)
set_subcategory(SUBCAT_INPUT_ACCESS)
add_integer("decklink-card-index", 0,
CARD_INDEX_TEXT, CARD_INDEX_LONGTEXT, true)
add_string("decklink-mode", NULL,
MODE_TEXT, MODE_LONGTEXT, true)
add_string("decklink-audio-connection", 0,
AUDIO_CONNECTION_TEXT, AUDIO_CONNECTION_LONGTEXT, true)
change_string_list(ppsz_audioconns, ppsz_audioconns_text)
add_integer("decklink-audio-rate", 48000,
RATE_TEXT, RATE_LONGTEXT, true)
add_integer("decklink-audio-channels", 2,
CHANNELS_TEXT, CHANNELS_LONGTEXT, true)
add_string("decklink-video-connection", 0,
VIDEO_CONNECTION_TEXT, VIDEO_CONNECTION_LONGTEXT, true)
change_string_list(ppsz_videoconns, ppsz_videoconns_text)
add_string("decklink-aspect-ratio", NULL,
ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, true)
add_bool("decklink-tenbits", false, N_("10 bits"), N_("10 bits"), true)
add_shortcut("decklink")
set_capability("access_demux", 10)
set_callbacks(Open, Close)
vlc_module_end ()
static int Control(demux_t *, int, va_list);
class DeckLinkCaptureDelegate;
struct demux_sys_t
{
IDeckLink *card;
IDeckLinkInput *input;
DeckLinkCaptureDelegate *delegate;
/* We need to hold onto the IDeckLinkConfiguration object, or our settings will not apply.
See section 2.4.15 of the Blackmagic DeckLink SDK documentation. */
IDeckLinkConfiguration *config;
IDeckLinkAttributes *attributes;
bool autodetect;
es_out_id_t *video_es;
es_out_id_t *audio_es;
es_out_id_t *cc_es;
vlc_mutex_t pts_lock;
int last_pts; /* protected by <pts_lock> */
uint32_t dominance_flags;
int channels;
bool tenbits;
};
static const char *GetFieldDominance(BMDFieldDominance dom, uint32_t *flags)
{
switch(dom)
{
case bmdProgressiveFrame:
return "";
case bmdProgressiveSegmentedFrame:
return ", segmented";
case bmdLowerFieldFirst:
*flags = BLOCK_FLAG_BOTTOM_FIELD_FIRST;
return ", interlaced [BFF]";
case bmdUpperFieldFirst:
*flags = BLOCK_FLAG_TOP_FIELD_FIRST;
return ", interlaced [TFF]";
case bmdUnknownFieldDominance:
default:
return ", unknown field dominance";
}
}
static es_format_t GetModeSettings(demux_t *demux, IDeckLinkDisplayMode *m)
{
demux_sys_t *sys = demux->p_sys;
uint32_t flags = 0;
(void)GetFieldDominance(m->GetFieldDominance(), &flags);
BMDTimeValue frame_duration, time_scale;
if (m->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
time_scale = 0;
frame_duration = 1;
}
es_format_t video_fmt;
vlc_fourcc_t chroma; chroma = sys->tenbits ? VLC_CODEC_I422_10L : VLC_CODEC_UYVY;
es_format_Init(&video_fmt, VIDEO_ES, chroma);
video_fmt.video.i_width = m->GetWidth();
video_fmt.video.i_height = m->GetHeight();
video_fmt.video.i_sar_num = 1;
video_fmt.video.i_sar_den = 1;
video_fmt.video.i_frame_rate = time_scale;
video_fmt.video.i_frame_rate_base = frame_duration;
video_fmt.i_bitrate = video_fmt.video.i_width * video_fmt.video.i_height * video_fmt.video.i_frame_rate * 2 * 8;
unsigned aspect_num, aspect_den;
if (!var_InheritURational(demux, &aspect_num, &aspect_den, "decklink-aspect-ratio") &&
aspect_num > 0 && aspect_den > 0) {
video_fmt.video.i_sar_num = aspect_num * video_fmt.video.i_height;
video_fmt.video.i_sar_den = aspect_den * video_fmt.video.i_width;
}
sys->dominance_flags = flags;
return video_fmt;
}
class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
{
public:
DeckLinkCaptureDelegate(demux_t *demux) : demux_(demux)
{
m_ref_.store(1);
}
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *) { return E_NOINTERFACE; }
virtual ULONG STDMETHODCALLTYPE AddRef(void)
{
return m_ref_.fetch_add(1);
}
virtual ULONG STDMETHODCALLTYPE Release(void)
{
uintptr_t new_ref = m_ref_.fetch_sub(1);
if (new_ref == 0)
delete this;
return new_ref;
}
virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode, BMDDetectedVideoInputFormatFlags)
{
demux_sys_t *sys = demux_->p_sys;
if( !(events & bmdVideoInputDisplayModeChanged ))
return S_OK;
const char *mode_name;
if (mode->GetName(&mode_name) != S_OK)
mode_name = "unknown";
msg_Dbg(demux_, "Video input format changed to %s", mode_name);
if (!sys->autodetect) {
msg_Err(demux_, "Video format detection disabled");
return S_OK;
}
es_out_Del(demux_->out, sys->video_es);
es_format_t video_fmt = GetModeSettings(demux_, mode);
sys->video_es = es_out_Add(demux_->out, &video_fmt);
BMDPixelFormat fmt = sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV;
sys->input->PauseStreams();
sys->input->EnableVideoInput( mode->GetDisplayMode(), fmt, bmdVideoInputEnableFormatDetection );
sys->input->FlushStreams();
sys->input->StartStreams();
return S_OK;
}
virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
private:
std::atomic_uint m_ref_;
demux_t *demux_;
};
HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioFrame)
{
demux_sys_t *sys = demux_->p_sys;
if (videoFrame) {
if (videoFrame->GetFlags() & bmdFrameHasNoInputSource) {
msg_Warn(demux_, "No input signal detected");
return S_OK;
}
const int width = videoFrame->GetWidth();
const int height = videoFrame->GetHeight();
const int stride = videoFrame->GetRowBytes();
int bpp = sys->tenbits ? 4 : 2;
block_t *video_frame = block_Alloc(width * height * bpp);
if (!video_frame)
return S_OK;
const uint32_t *frame_bytes;
videoFrame->GetBytes((void**)&frame_bytes);
BMDTimeValue stream_time, frame_duration;
videoFrame->GetStreamTime(&stream_time, &frame_duration, CLOCK_FREQ);
video_frame->i_flags = BLOCK_FLAG_TYPE_I | sys->dominance_flags;
video_frame->i_pts = video_frame->i_dts = VLC_TS_0 + stream_time;
if (sys->tenbits) {
v210_convert((uint16_t*)video_frame->p_buffer, frame_bytes, width, height);
IDeckLinkVideoFrameAncillary *vanc;
if (videoFrame->GetAncillaryData(&vanc) == S_OK) {
for (int i = 1; i < 21; i++) {
uint32_t *buf;
if (vanc->GetBufferForVerticalBlankingLine(i, (void**)&buf) != S_OK)
break;
uint16_t dec[width * 2];
v210_convert(&dec[0], buf, width, 1);
block_t *cc = vanc_to_cc(demux_, dec, width * 2);
if (!cc)
continue;
cc->i_pts = cc->i_dts = VLC_TS_0 + stream_time;
if (!sys->cc_es) {
es_format_t fmt;
es_format_Init( &fmt, SPU_ES, VLC_FOURCC('c', 'c', '1' , ' ') );
fmt.psz_description = strdup(N_("Closed captions 1"));
if (fmt.psz_description) {
sys->cc_es = es_out_Add(demux_->out, &fmt);
msg_Dbg(demux_, "Adding Closed captions stream");
}
}
if (sys->cc_es)
es_out_Send(demux_->out, sys->cc_es, cc);
else
block_Release(cc);
break; // we found the line with Closed Caption data
}
vanc->Release();
}
} else {
for (int y = 0; y < height; ++y) {
const uint8_t *src = (const uint8_t *)frame_bytes + stride * y;
uint8_t *dst = video_frame->p_buffer + width * 2 * y;
memcpy(dst, src, width * 2);
}
}
vlc_mutex_lock(&sys->pts_lock);
if (video_frame->i_pts > sys->last_pts)
sys->last_pts = video_frame->i_pts;
vlc_mutex_unlock(&sys->pts_lock);
es_out_Control(demux_->out, ES_OUT_SET_PCR, video_frame->i_pts);
es_out_Send(demux_->out, sys->video_es, video_frame);
}
if (audioFrame) {
const int bytes = audioFrame->GetSampleFrameCount() * sizeof(int16_t) * sys->channels;
block_t *audio_frame = block_Alloc(bytes);
if (!audio_frame)
return S_OK;
void *frame_bytes;
audioFrame->GetBytes(&frame_bytes);
memcpy(audio_frame->p_buffer, frame_bytes, bytes);
BMDTimeValue packet_time;
audioFrame->GetPacketTime(&packet_time, CLOCK_FREQ);
audio_frame->i_pts = audio_frame->i_dts = VLC_TS_0 + packet_time;
vlc_mutex_lock(&sys->pts_lock);
if (audio_frame->i_pts > sys->last_pts)
sys->last_pts = audio_frame->i_pts;
vlc_mutex_unlock(&sys->pts_lock);
es_out_Control(demux_->out, ES_OUT_SET_PCR, audio_frame->i_pts);
es_out_Send(demux_->out, sys->audio_es, audio_frame);
}
return S_OK;
}
static int GetAudioConn(demux_t *demux)
{
demux_sys_t *sys = demux->p_sys;
char *opt = var_CreateGetNonEmptyString(demux, "decklink-audio-connection");
if (!opt)
return VLC_SUCCESS;
BMDAudioConnection c;
if (!strcmp(opt, "embedded"))
c = bmdAudioConnectionEmbedded;
else if (!strcmp(opt, "aesebu"))
c = bmdAudioConnectionAESEBU;
else if (!strcmp(opt, "analog"))
c = bmdAudioConnectionAnalog;
else {
msg_Err(demux, "Invalid audio-connection: `%s\' specified", opt);
free(opt);
return VLC_EGENERIC;
}
if (sys->config->SetInt(bmdDeckLinkConfigAudioInputConnection, c) != S_OK) {
msg_Err(demux, "Failed to set audio input connection");
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int GetVideoConn(demux_t *demux)
{
demux_sys_t *sys = demux->p_sys;
char *opt = var_InheritString(demux, "decklink-video-connection");
if (!opt)
return VLC_SUCCESS;
BMDVideoConnection c;
if (!strcmp(opt, "sdi"))
c = bmdVideoConnectionSDI;
else if (!strcmp(opt, "hdmi"))
c = bmdVideoConnectionHDMI;
else if (!strcmp(opt, "opticalsdi"))
c = bmdVideoConnectionOpticalSDI;
else if (!strcmp(opt, "component"))
c = bmdVideoConnectionComponent;
else if (!strcmp(opt, "composite"))
c = bmdVideoConnectionComposite;
else if (!strcmp(opt, "svideo"))
c = bmdVideoConnectionSVideo;
else {
msg_Err(demux, "Invalid video-connection: `%s\' specified", opt);
free(opt);
return VLC_EGENERIC;
}
free(opt);
if (sys->config->SetInt(bmdDeckLinkConfigVideoInputConnection, c) != S_OK) {
msg_Err(demux, "Failed to set video input connection");
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int Open(vlc_object_t *p_this)
{
demux_t *demux = (demux_t*)p_this;
demux_sys_t *sys;
int ret = VLC_EGENERIC;
int card_index;
int physical_channels = 0;
int rate;
BMDVideoInputFlags flags = bmdVideoInputFlagDefault;
/* Only when selected */
if (*demux->psz_access == '\0')
return VLC_EGENERIC;
/* Set up demux */
demux->pf_demux = NULL;
demux->pf_control = Control;
demux->info.i_update = 0;
demux->info.i_title = 0;
demux->info.i_seekpoint = 0;
demux->p_sys = sys = (demux_sys_t*)calloc(1, sizeof(demux_sys_t));
if (!sys)
return VLC_ENOMEM;
vlc_mutex_init(&sys->pts_lock);
sys->tenbits = var_InheritBool(p_this, "decklink-tenbits");
IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
if (!decklink_iterator) {
msg_Err(demux, "DeckLink drivers not found.");
goto finish;
}
card_index = var_InheritInteger(demux, "decklink-card-index");
if (card_index < 0) {
msg_Err(demux, "Invalid card index %d", card_index);
goto finish;
}
for (int i = 0; i <= card_index; i++) {
if (sys->card)
sys->card->Release();
if (decklink_iterator->Next(&sys->card) != S_OK) {
msg_Err(demux, "DeckLink PCI card %d not found", card_index);
goto finish;
}
}
const char *model_name;
if (sys->card->GetModelName(&model_name) != S_OK)
model_name = "unknown";
msg_Dbg(demux, "Opened DeckLink PCI card %d (%s)", card_index, model_name);
if (sys->card->QueryInterface(IID_IDeckLinkInput, (void**)&sys->input) != S_OK) {
msg_Err(demux, "Card has no inputs");
goto finish;
}
/* Set up the video and audio sources. */
if (sys->card->QueryInterface(IID_IDeckLinkConfiguration, (void**)&sys->config) != S_OK) {
msg_Err(demux, "Failed to get configuration interface");
goto finish;
}
if (sys->card->QueryInterface(IID_IDeckLinkAttributes, (void**)&sys->attributes) != S_OK) {
msg_Err(demux, "Failed to get attributes interface");
goto finish;
}
if (GetVideoConn(demux) || GetAudioConn(demux))
goto finish;
BMDPixelFormat fmt;
fmt = sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV;
if (sys->attributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &sys->autodetect) != S_OK) {
msg_Err(demux, "Failed to query card attribute");
goto finish;
}
/* Get the list of display modes. */
IDeckLinkDisplayModeIterator *mode_it;
if (sys->input->GetDisplayModeIterator(&mode_it) != S_OK) {
msg_Err(demux, "Failed to enumerate display modes");
goto finish;
}
union {
BMDDisplayMode id;
char str[4];
} u;
u.id = 0;
char *mode;
mode = var_CreateGetNonEmptyString(demux, "decklink-mode");
if (mode)
sys->autodetect = false; // disable autodetection if mode was set
if (sys->autodetect) {
msg_Dbg(demux, "Card supports input format detection");
flags |= bmdVideoInputEnableFormatDetection;
/* Enable a random format, we will reconfigure on format detection */
u.id = htonl(bmdModeHD1080p2997);
} else {
if (!mode || strlen(mode) < 3 || strlen(mode) > 4) {
msg_Err(demux, "Invalid mode: \'%s\'", mode ? mode : "");
free(mode);
goto finish;
}
msg_Dbg(demux, "Looking for mode \'%s\'", mode);
memcpy(u.str, mode, 4);
if (u.str[3] == '\0')
u.str[3] = ' '; /* 'pal'\0 -> 'pal ' */
free(mode);
}
es_format_t video_fmt;
video_fmt.video.i_width = 0;
for (IDeckLinkDisplayMode *m;; m->Release()) {
if ((mode_it->Next(&m) != S_OK) || !m)
break;
const char *mode_name;
BMDTimeValue frame_duration, time_scale;
uint32_t field_flags;
const char *field = GetFieldDominance(m->GetFieldDominance(), &field_flags);
BMDDisplayMode id = ntohl(m->GetDisplayMode());
if (m->GetName(&mode_name) != S_OK)
mode_name = "unknown";
if (m->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
time_scale = 0;
frame_duration = 1;
}
msg_Dbg(demux, "Found mode '%4.4s': %s (%dx%d, %.3f fps%s)",
(char*)&id, mode_name,
(int)m->GetWidth(), (int)m->GetHeight(),
double(time_scale) / frame_duration, field);
if (u.id == id) {
video_fmt = GetModeSettings(demux, m);
msg_Dbg(demux, "Using that mode");
}
}
mode_it->Release();
if (video_fmt.video.i_width == 0) {
msg_Err(demux, "Unknown video mode `%4.4s\' specified.", (char*)&u.id);
goto finish;
}
if (sys->input->EnableVideoInput(htonl(u.id), fmt, flags) != S_OK) {
msg_Err(demux, "Failed to enable video input");
goto finish;
}
/* Set up audio. */
sys->channels = var_InheritInteger(demux, "decklink-audio-channels");
switch (sys->channels) {
case 0:
break;
case 2:
physical_channels = AOUT_CHANS_STEREO;
break;
case 8:
physical_channels = AOUT_CHANS_7_1;
break;
//case 16:
default:
msg_Err(demux, "Invalid number of channels (%d), disabling audio", sys->channels);
sys->channels = 0;
}
rate = var_InheritInteger(demux, "decklink-audio-rate");
if (rate > 0 && sys->channels > 0) {
if (sys->input->EnableAudioInput(rate, bmdAudioSampleType16bitInteger, sys->channels) != S_OK) {
msg_Err(demux, "Failed to enable audio input");
goto finish;
}
}
sys->delegate = new DeckLinkCaptureDelegate(demux);
sys->input->SetCallback(sys->delegate);
if (sys->input->StartStreams() != S_OK) {
msg_Err(demux, "Could not start streaming from SDI card. This could be caused "
"by invalid video mode or flags, access denied, or card already in use.");
goto finish;
}
msg_Dbg(demux, "added new video es %4.4s %dx%d",
(char*)&video_fmt.i_codec, video_fmt.video.i_width, video_fmt.video.i_height);
sys->video_es = es_out_Add(demux->out, &video_fmt);
es_format_t audio_fmt;
es_format_Init(&audio_fmt, AUDIO_ES, VLC_CODEC_S16N);
audio_fmt.audio.i_channels = sys->channels;
audio_fmt.audio.i_physical_channels = physical_channels;
audio_fmt.audio.i_rate = rate;
audio_fmt.audio.i_bitspersample = 16;
audio_fmt.audio.i_blockalign = audio_fmt.audio.i_channels * audio_fmt.audio.i_bitspersample / 8;
audio_fmt.i_bitrate = audio_fmt.audio.i_channels * audio_fmt.audio.i_rate * audio_fmt.audio.i_bitspersample;
msg_Dbg(demux, "added new audio es %4.4s %dHz %dbpp %dch",
(char*)&audio_fmt.i_codec, audio_fmt.audio.i_rate, audio_fmt.audio.i_bitspersample, audio_fmt.audio.i_channels);
sys->audio_es = es_out_Add(demux->out, &audio_fmt);
ret = VLC_SUCCESS;
finish:
if (decklink_iterator)
decklink_iterator->Release();
if (ret != VLC_SUCCESS)
Close(p_this);
return ret;
}
static void Close(vlc_object_t *p_this)
{
demux_t *demux = (demux_t *)p_this;
demux_sys_t *sys = demux->p_sys;
if (sys->attributes)
sys->attributes->Release();
if (sys->config)
sys->config->Release();
if (sys->input) {
sys->input->StopStreams();
sys->input->Release();
}
if (sys->card)
sys->card->Release();
if (sys->delegate)
sys->delegate->Release();
vlc_mutex_destroy(&sys->pts_lock);
free(sys);
}
static int Control(demux_t *demux, int query, va_list args)
{
demux_sys_t *sys = demux->p_sys;
bool *pb;
int64_t *pi64;
switch(query)
{
/* Special for access_demux */
case DEMUX_CAN_PAUSE:
case DEMUX_CAN_SEEK:
case DEMUX_CAN_CONTROL_PACE:
pb = (bool*)va_arg(args, bool *);
*pb = false;
return VLC_SUCCESS;
case DEMUX_GET_PTS_DELAY:
pi64 = (int64_t*)va_arg(args, int64_t *);
*pi64 = INT64_C(1000) * var_InheritInteger(demux, "live-caching");
return VLC_SUCCESS;
case DEMUX_GET_TIME:
pi64 = (int64_t*)va_arg(args, int64_t *);
vlc_mutex_lock(&sys->pts_lock);
*pi64 = sys->last_pts;
vlc_mutex_unlock(&sys->pts_lock);
return VLC_SUCCESS;
default:
return VLC_EGENERIC;
}
}
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