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 output module
*****************************************************************************
* Copyright (C) 2012-2013 Rafaël Carré
* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
*
* Authors: Rafaël Carré <funman@videolan.org>
*
* 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.
*****************************************************************************/
/*
* TODO: test non stereo audio
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_fixups.h>
#include <cinttypes>
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_threads.h>
#include <vlc_vout_display.h>
#include <vlc_picture_pool.h>
#include <vlc_block.h>
#include <vlc_image.h>
#include <vlc_aout.h>
#include <arpa/inet.h>
#include <DeckLinkAPI.h>
#include <DeckLinkAPIDispatch.cpp>
#define FRAME_SIZE 1920
#define CHANNELS_MAX 6
#if 0
static const int pi_channels_maps[CHANNELS_MAX+1] =
{
0,
AOUT_CHAN_CENTER,
AOUT_CHANS_STEREO,
AOUT_CHANS_3_0,
AOUT_CHANS_4_0,
AOUT_CHANS_5_0,
AOUT_CHANS_5_1,
};
#endif
#define NOSIGNAL_INDEX_TEXT N_("Timelength after which we assume there is no signal.")
#define NOSIGNAL_INDEX_LONGTEXT N_(\
"Timelength after which we assume there is no signal.\n"\
"After this delay we black out the video."\
)
#define NOSIGNAL_IMAGE_TEXT N_("Picture to display on input signal loss.")
#define NOSIGNAL_IMAGE_LONGTEXT NOSIGNAL_IMAGE_TEXT
#define CARD_INDEX_TEXT N_("Output card")
#define CARD_INDEX_LONGTEXT N_(\
"DeckLink output card, if multiple exist. " \
"The cards are numbered from 0.")
#define MODE_TEXT N_("Desired output mode")
#define MODE_LONGTEXT N_(\
"Desired output mode for DeckLink output. " \
"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 for DeckLink output.")
#define RATE_TEXT N_("Audio samplerate (Hz)")
#define RATE_LONGTEXT N_(\
"Audio sampling rate (in hertz) for DeckLink output. " \
"0 disables audio output.")
#define CHANNELS_TEXT N_("Number of audio channels")
#define CHANNELS_LONGTEXT N_(\
"Number of output channels for DeckLink output. " \
"Must be 2, 8 or 16. 0 disables audio output.")
#define VIDEO_CONNECTION_TEXT N_("Video connection")
#define VIDEO_CONNECTION_LONGTEXT N_(\
"Video connection for DeckLink output.")
#define VIDEO_TENBITS_TEXT N_("10 bits")
#define VIDEO_TENBITS_LONGTEXT N_(\
"Use 10 bits per pixel for video frames.")
#define CFG_PREFIX "decklink-output-"
#define VIDEO_CFG_PREFIX "decklink-vout-"
#define AUDIO_CFG_PREFIX "decklink-aout-"
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")
};
struct vout_display_sys_t
{
picture_pool_t *pool;
bool tenbits;
int nosignal_delay;
picture_t *pic_nosignal;
};
/* Only one audio output module and one video output module
* can be used per process.
* We use a static mutex in audio/video submodules entry points. */
struct decklink_sys_t
{
IDeckLinkOutput *p_output;
/*
* Synchronizes aout and vout modules:
* vout module waits until aout has been initialized.
* That means video-only output is NOT supported.
*/
vlc_mutex_t lock;
vlc_cond_t cond;
uint8_t users;
//int i_channels;
int i_rate;
int i_width;
int i_height;
BMDTimeScale timescale;
BMDTimeValue frameduration;
/* XXX: workaround card clock drift */
mtime_t offset;
};
/*****************************************************************************
* Local prototypes.
*****************************************************************************/
static int OpenVideo (vlc_object_t *);
static void CloseVideo (vlc_object_t *);
static int OpenAudio (vlc_object_t *);
static void CloseAudio (vlc_object_t *);
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin()
set_shortname(N_("DecklinkOutput"))
set_description(N_("output module to write to Blackmagic SDI card"))
set_section(N_("DeckLink General Options"), NULL)
add_integer(CFG_PREFIX "card-index", 0,
CARD_INDEX_TEXT, CARD_INDEX_LONGTEXT, true)
add_submodule ()
set_description (N_("DeckLink Video Output module"))
set_category(CAT_VIDEO)
set_subcategory(SUBCAT_VIDEO_VOUT)
set_capability("vout display", 0)
set_callbacks (OpenVideo, CloseVideo)
set_section(N_("DeckLink Video Options"), NULL)
add_string(VIDEO_CFG_PREFIX "video-connection", "sdi",
VIDEO_CONNECTION_TEXT, VIDEO_CONNECTION_LONGTEXT, true)
change_string_list(ppsz_videoconns, ppsz_videoconns_text)
add_string(VIDEO_CFG_PREFIX "mode", "pal ",
MODE_TEXT, MODE_LONGTEXT, true)
add_bool(VIDEO_CFG_PREFIX "tenbits", false,
VIDEO_TENBITS_TEXT, VIDEO_TENBITS_LONGTEXT, true)
add_integer(VIDEO_CFG_PREFIX "nosignal-delay", 5,
NOSIGNAL_INDEX_TEXT, NOSIGNAL_INDEX_LONGTEXT, true)
add_loadfile(VIDEO_CFG_PREFIX "nosignal-image", NULL,
NOSIGNAL_IMAGE_TEXT, NOSIGNAL_IMAGE_LONGTEXT, true)
add_submodule ()
set_description (N_("DeckLink Audio Output module"))
set_category(CAT_AUDIO)
set_subcategory(SUBCAT_AUDIO_AOUT)
set_capability("audio output", 0)
set_callbacks (OpenAudio, CloseAudio)
set_section(N_("DeckLink Audio Options"), NULL)
add_obsolete_string("audio-connection")
add_integer(AUDIO_CFG_PREFIX "audio-rate", 48000,
RATE_TEXT, RATE_LONGTEXT, true)
add_integer(AUDIO_CFG_PREFIX "audio-channels", 2,
CHANNELS_TEXT, CHANNELS_LONGTEXT, true)
vlc_module_end ()
/* Protects decklink_sys_t creation/deletion */
static vlc_mutex_t sys_lock = VLC_STATIC_MUTEX;
static struct decklink_sys_t *GetDLSys(vlc_object_t *obj)
{
vlc_object_t *libvlc = VLC_OBJECT(obj->p_libvlc);
struct decklink_sys_t *sys;
vlc_mutex_lock(&sys_lock);
if (var_Type(libvlc, "decklink-sys") == VLC_VAR_ADDRESS)
sys = (struct decklink_sys_t*)var_GetAddress(libvlc, "decklink-sys");
else {
sys = (struct decklink_sys_t*)malloc(sizeof(*sys));
if (sys) {
sys->p_output = NULL;
sys->offset = 0;
sys->users = 0;
sys->i_rate = -1;
vlc_mutex_init(&sys->lock);
vlc_cond_init(&sys->cond);
var_Create(libvlc, "decklink-sys", VLC_VAR_ADDRESS);
var_SetAddress(libvlc, "decklink-sys", (void*)sys);
}
}
vlc_mutex_unlock(&sys_lock);
return sys;
}
static void ReleaseDLSys(vlc_object_t *obj)
{
vlc_object_t *libvlc = VLC_OBJECT(obj->p_libvlc);
vlc_mutex_lock(&sys_lock);
struct decklink_sys_t *sys = (struct decklink_sys_t*)var_GetAddress(libvlc, "decklink-sys");
if (--sys->users == 0) {
msg_Dbg(obj, "Destroying decklink data");
vlc_mutex_destroy(&sys->lock);
vlc_cond_destroy(&sys->cond);
if (sys->p_output) {
sys->p_output->StopScheduledPlayback(0, NULL, 0);
sys->p_output->DisableVideoOutput();
sys->p_output->DisableAudioOutput();
sys->p_output->Release();
}
free(sys);
var_Destroy(libvlc, "decklink-sys");
}
vlc_mutex_unlock(&sys_lock);
}
static BMDVideoConnection getVConn(vout_display_t *vd)
{
BMDVideoConnection conn = bmdVideoConnectionSDI;
char *psz = var_InheritString(vd, VIDEO_CFG_PREFIX "video-connection");
if (!psz)
goto end;
if (!strcmp(psz, "sdi"))
conn = bmdVideoConnectionSDI;
else if (!strcmp(psz, "hdmi"))
conn = bmdVideoConnectionHDMI;
else if (!strcmp(psz, "opticalsdi"))
conn = bmdVideoConnectionOpticalSDI;
else if (!strcmp(psz, "component"))
conn = bmdVideoConnectionComponent;
else if (!strcmp(psz, "composite"))
conn = bmdVideoConnectionComposite;
else if (!strcmp(psz, "svideo"))
conn = bmdVideoConnectionSVideo;
end:
free(psz);
return conn;
}
/*****************************************************************************
*
*****************************************************************************/
static struct decklink_sys_t *OpenDecklink(vout_display_t *vd)
{
vout_display_sys_t *sys = vd->sys;
#define CHECK(message) do { \
if (result != S_OK) \
{ \
msg_Err(vd, message ": 0x%X", result); \
goto error; \
} \
} while(0)
HRESULT result;
IDeckLinkIterator *decklink_iterator = NULL;
IDeckLinkDisplayMode *p_display_mode = NULL;
IDeckLinkDisplayModeIterator *p_display_iterator = NULL;
IDeckLinkConfiguration *p_config = NULL;
IDeckLink *p_card = NULL;
struct decklink_sys_t *decklink_sys = GetDLSys(VLC_OBJECT(vd));
vlc_mutex_lock(&decklink_sys->lock);
decklink_sys->users++;
/* wait until aout is ready */
while (decklink_sys->i_rate == -1)
vlc_cond_wait(&decklink_sys->cond, &decklink_sys->lock);
int i_card_index = var_InheritInteger(vd, CFG_PREFIX "card-index");
BMDVideoConnection vconn = getVConn(vd);
char *mode = var_InheritString(vd, VIDEO_CFG_PREFIX "mode");
size_t len = mode ? strlen(mode) : 0;
if (!mode || len > 4)
{
free(mode);
msg_Err(vd, "Missing or invalid mode");
goto error;
}
BMDDisplayMode wanted_mode_id;
memset(&wanted_mode_id, ' ', 4);
strncpy((char*)&wanted_mode_id, mode, 4);
free(mode);
if (i_card_index < 0)
{
msg_Err(vd, "Invalid card index %d", i_card_index);
goto error;
}
decklink_iterator = CreateDeckLinkIteratorInstance();
if (!decklink_iterator)
{
msg_Err(vd, "DeckLink drivers not found.");
goto error;
}
for(int i = 0; i <= i_card_index; ++i)
{
if (p_card)
p_card->Release();
result = decklink_iterator->Next(&p_card);
CHECK("Card not found");
}
const char *psz_model_name;
result = p_card->GetModelName(&psz_model_name);
CHECK("Unknown model name");
msg_Dbg(vd, "Opened DeckLink PCI card %s", psz_model_name);
result = p_card->QueryInterface(IID_IDeckLinkOutput,
(void**)&decklink_sys->p_output);
CHECK("No outputs");
result = p_card->QueryInterface(IID_IDeckLinkConfiguration,
(void**)&p_config);
CHECK("Could not get config interface");
if (vconn)
{
result = p_config->SetInt(
bmdDeckLinkConfigVideoOutputConnection, vconn);
CHECK("Could not set video output connection");
}
result = decklink_sys->p_output->GetDisplayModeIterator(&p_display_iterator);
CHECK("Could not enumerate display modes");
for (; ; p_display_mode->Release())
{
int w, h;
result = p_display_iterator->Next(&p_display_mode);
if (result != S_OK)
break;
BMDDisplayMode mode_id = ntohl(p_display_mode->GetDisplayMode());
const char *psz_mode_name;
result = p_display_mode->GetName(&psz_mode_name);
CHECK("Could not get display mode name");
result = p_display_mode->GetFrameRate(&decklink_sys->frameduration,
&decklink_sys->timescale);
CHECK("Could not get frame rate");
w = p_display_mode->GetWidth();
h = p_display_mode->GetHeight();
msg_Dbg(vd, "Found mode '%4.4s': %s (%dx%d, %.3f fps)",
(char*)&mode_id, psz_mode_name, w, h,
double(decklink_sys->timescale) / decklink_sys->frameduration);
msg_Dbg(vd, "scale %d dur %d", (int)decklink_sys->timescale,
(int)decklink_sys->frameduration);
if (wanted_mode_id != mode_id)
continue;
decklink_sys->i_width = w;
decklink_sys->i_height = h;
mode_id = htonl(mode_id);
BMDVideoOutputFlags flags = bmdVideoOutputVANC;
if (mode_id == bmdModeNTSC ||
mode_id == bmdModeNTSC2398 ||
mode_id == bmdModePAL)
{
flags = bmdVideoOutputVITC;
}
BMDDisplayModeSupport support;
IDeckLinkDisplayMode *resultMode;
result = decklink_sys->p_output->DoesSupportVideoMode(mode_id,
sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV,
flags, &support, &resultMode);
CHECK("Does not support video mode");
if (support == bmdDisplayModeNotSupported)
{
msg_Err(vd, "Video mode not supported");
goto error;
}
result = decklink_sys->p_output->EnableVideoOutput(mode_id, flags);
CHECK("Could not enable video output");
break;
}
if (decklink_sys->i_width < 0 || decklink_sys->i_width & 1)
{
msg_Err(vd, "Unknown video mode specified.");
goto error;
}
if (/*decklink_sys->i_channels > 0 &&*/ decklink_sys->i_rate > 0)
{
result = decklink_sys->p_output->EnableAudioOutput(
decklink_sys->i_rate,
bmdAudioSampleType16bitInteger,
/*decklink_sys->i_channels*/ 2,
bmdAudioOutputStreamTimestamped);
}
CHECK("Could not start audio output");
/* start */
result = decklink_sys->p_output->StartScheduledPlayback(
(mdate() * decklink_sys->timescale) / CLOCK_FREQ, decklink_sys->timescale, 1.0);
CHECK("Could not start playback");
p_config->Release();
p_display_mode->Release();
p_display_iterator->Release();
p_card->Release();
decklink_iterator->Release();
vlc_mutex_unlock(&decklink_sys->lock);
vout_display_DeleteWindow(vd, NULL);
return decklink_sys;
error:
if (decklink_sys->p_output) {
decklink_sys->p_output->Release();
decklink_sys->p_output = NULL;
}
if (p_card)
p_card->Release();
if (p_config)
p_config->Release();
if (p_display_iterator)
p_display_iterator->Release();
if (decklink_iterator)
decklink_iterator->Release();
if (p_display_mode)
p_display_mode->Release();
vlc_mutex_unlock(&decklink_sys->lock);
ReleaseDLSys(VLC_OBJECT(vd));
return NULL;
#undef CHECK
}
/*****************************************************************************
* Video
*****************************************************************************/
static picture_pool_t *PoolVideo(vout_display_t *vd, unsigned requested_count)
{
vout_display_sys_t *sys = vd->sys;
if (!sys->pool)
sys->pool = picture_pool_NewFromFormat(&vd->fmt, requested_count);
return sys->pool;
}
static inline void put_le32(uint8_t **p, uint32_t d)
{
SetDWLE(*p, d);
(*p) += 4;
}
static inline int clip(int a)
{
if (a < 4) return 4;
else if (a > 1019) return 1019;
else return a;
}
static void v210_convert(void *frame_bytes, picture_t *pic, int dst_stride)
{
int width = pic->format.i_width;
int height = pic->format.i_height;
int line_padding = dst_stride - ((width * 8 + 11) / 12) * 4;
int h, w;
uint8_t *data = (uint8_t*)frame_bytes;
const uint16_t *y = (const uint16_t*)pic->p[0].p_pixels;
const uint16_t *u = (const uint16_t*)pic->p[1].p_pixels;
const uint16_t *v = (const uint16_t*)pic->p[2].p_pixels;
#define WRITE_PIXELS(a, b, c) \
do { \
val = clip(*a++); \
val |= (clip(*b++) << 10) | \
(clip(*c++) << 20); \
put_le32(&data, val); \
} while (0)
for (h = 0; h < height; h++) {
uint32_t val = 0;
for (w = 0; w < width - 5; w += 6) {
WRITE_PIXELS(u, y, v);
WRITE_PIXELS(y, u, y);
WRITE_PIXELS(v, y, u);
WRITE_PIXELS(y, v, y);
}
if (w < width - 1) {
WRITE_PIXELS(u, y, v);
val = clip(*y++);
if (w == width - 2)
put_le32(&data, val);
#undef WRITE_PIXELS
}
if (w < width - 3) {
val |= (clip(*u++) << 10) | (clip(*y++) << 20);
put_le32(&data, val);
val = clip(*v++) | (clip(*y++) << 10);
put_le32(&data, val);
}
memset(data, 0, line_padding);
data += line_padding;
y += pic->p[0].i_pitch / 2 - width;
u += pic->p[1].i_pitch / 2 - width / 2;
v += pic->p[2].i_pitch / 2 - width / 2;
}
}
static void DisplayVideo(vout_display_t *vd, picture_t *picture, subpicture_t *)
{
vout_display_sys_t *sys = vd->sys;
struct decklink_sys_t *decklink_sys = GetDLSys(VLC_OBJECT(vd));
mtime_t now = mdate();
if (!picture)
return;
picture_t *orig_picture = picture;
if (now - picture->date > sys->nosignal_delay * CLOCK_FREQ) {
msg_Dbg(vd, "no signal");
if (sys->pic_nosignal) {
picture = sys->pic_nosignal;
} else {
if (sys->tenbits) { // I422_10L
plane_t *y = &picture->p[0];
memset(y->p_pixels, 0x0, y->i_lines * y->i_pitch);
for (int i = 1; i < picture->i_planes; i++) {
plane_t *p = &picture->p[i];
size_t len = p->i_lines * p->i_pitch / 2;
int16_t *data = (int16_t*)p->p_pixels;
for (size_t j = 0; j < len; j++) // XXX: SIMD
data[j] = 0x200;
}
} else { // UYVY
size_t len = picture->p[0].i_lines * picture->p[0].i_pitch;
for (size_t i = 0; i < len; i+= 2) { // XXX: SIMD
picture->p[0].p_pixels[i+0] = 0x80;
picture->p[0].p_pixels[i+1] = 0;
}
}
}
picture->date = now;
}
HRESULT result;
int w, h, stride, length;
w = decklink_sys->i_width;
h = decklink_sys->i_height;
IDeckLinkMutableVideoFrame *pDLVideoFrame;
result = decklink_sys->p_output->CreateVideoFrame(w, h, w*3,
sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV,
bmdFrameFlagDefault, &pDLVideoFrame);
if (result != S_OK) {
msg_Err(vd, "Failed to create video frame: 0x%X", result);
pDLVideoFrame = NULL;
goto end;
}
void *frame_bytes;
pDLVideoFrame->GetBytes((void**)&frame_bytes);
stride = pDLVideoFrame->GetRowBytes();
if (sys->tenbits)
v210_convert(frame_bytes, picture, stride);
else for(int y = 0; y < h; ++y) {
uint8_t *dst = (uint8_t *)frame_bytes + stride * y;
const uint8_t *src = (const uint8_t *)picture->p[0].p_pixels +
picture->p[0].i_pitch * y;
memcpy(dst, src, w * 2 /* bpp */);
}
// compute frame duration in CLOCK_FREQ units
length = (decklink_sys->frameduration * CLOCK_FREQ) / decklink_sys->timescale;
picture->date -= decklink_sys->offset;
result = decklink_sys->p_output->ScheduleVideoFrame(pDLVideoFrame,
picture->date, length, CLOCK_FREQ);
if (result != S_OK) {
msg_Err(vd, "Dropped Video frame %" PRId64 ": 0x%x",
picture->date, result);
goto end;
}
now = mdate() - decklink_sys->offset;
BMDTimeValue decklink_now;
double speed;
decklink_sys->p_output->GetScheduledStreamTime (CLOCK_FREQ, &decklink_now, &speed);
if ((now - decklink_now) > 400000) {
/* XXX: workaround card clock drift */
decklink_sys->offset += 50000;
msg_Err(vd, "Delaying: offset now %" PRId64, decklink_sys->offset);
}
end:
if (pDLVideoFrame)
pDLVideoFrame->Release();
picture_Release(orig_picture);
}
static int ControlVideo(vout_display_t *vd, int query, va_list args)
{
(void) vd; (void) query; (void) args;
return VLC_EGENERIC;
}
static int OpenVideo(vlc_object_t *p_this)
{
vout_display_t *vd = (vout_display_t *)p_this;
vout_display_sys_t *sys;
struct decklink_sys_t *decklink_sys;
vd->sys = sys = (vout_display_sys_t*)malloc(sizeof(*sys));
if (!sys)
return VLC_ENOMEM;
sys->tenbits = var_InheritBool(p_this, VIDEO_CFG_PREFIX "tenbits");
sys->nosignal_delay = var_InheritInteger(p_this, VIDEO_CFG_PREFIX "nosignal-delay");
sys->pic_nosignal = NULL;
decklink_sys = OpenDecklink(vd);
if (!decklink_sys) {
if (sys->pic_nosignal)
picture_Release(sys->pic_nosignal);
free(sys);
return VLC_EGENERIC;
}
sys->pool = NULL;
vd->fmt.i_chroma = sys->tenbits
? VLC_CODEC_I422_10L /* we will convert to v210 */
: VLC_CODEC_UYVY;
//video_format_FixRgb(&(vd->fmt));
vd->fmt.i_width = decklink_sys->i_width;
vd->fmt.i_height = decklink_sys->i_height;
char *pic_file = var_InheritString(p_this, VIDEO_CFG_PREFIX "nosignal-image");
if (pic_file) {
image_handler_t *img = image_HandlerCreate(p_this);
if (!img) {
msg_Err(p_this, "Could not create image converter");
} else {
video_format_t in, dummy;
video_format_Init(&in, 0);
video_format_Setup(&in, 0, vd->fmt.i_width, vd->fmt.i_height,
vd->fmt.i_width, vd->fmt.i_height, 1, 1);
video_format_Init(&dummy, 0);
picture_t *png = image_ReadUrl(img, pic_file, &dummy, &in);
if (png) {
msg_Err(p_this, "Converting");
sys->pic_nosignal = image_Convert(img, png, &in, &vd->fmt);
picture_Release(png);
}
image_HandlerDelete(img);
}
free(pic_file);
if (!sys->pic_nosignal) {
CloseVideo(p_this);
msg_Err(p_this, "Could not create no signal picture");
return VLC_EGENERIC;
}
}
vd->info.has_hide_mouse = true;
vd->pool = PoolVideo;
vd->prepare = NULL;
vd->display = DisplayVideo;
vd->control = ControlVideo;
vd->manage = NULL;
vout_display_SendEventFullscreen(vd, false);
return VLC_SUCCESS;
}
static void CloseVideo(vlc_object_t *p_this)
{
vout_display_t *vd = (vout_display_t *)p_this;
vout_display_sys_t *sys = vd->sys;
if (sys->pool)
picture_pool_Release(sys->pool);
if (sys->pic_nosignal)
picture_Release(sys->pic_nosignal);
free(sys);
ReleaseDLSys(p_this);
}
/*****************************************************************************
* Audio
*****************************************************************************/
static void Flush (audio_output_t *aout, bool drain)
{
struct decklink_sys_t *decklink_sys = GetDLSys(VLC_OBJECT(aout));
vlc_mutex_lock(&decklink_sys->lock);
IDeckLinkOutput *p_output = decklink_sys->p_output;
vlc_mutex_unlock(&decklink_sys->lock);
if (!p_output)
return;
if (drain) {
uint32_t samples;
decklink_sys->p_output->GetBufferedAudioSampleFrameCount(&samples);
msleep(CLOCK_FREQ * samples / decklink_sys->i_rate);
} else if (decklink_sys->p_output->FlushBufferedAudioSamples() == E_FAIL)
msg_Err(aout, "Flush failed");
}
static int TimeGet(audio_output_t *, mtime_t* restrict)
{
/* synchronization is handled by the card */
return -1;
}
static int Start(audio_output_t *aout, audio_sample_format_t *restrict fmt)
{
struct decklink_sys_t *decklink_sys = GetDLSys(VLC_OBJECT(aout));
if (decklink_sys->i_rate == 0)
return VLC_EGENERIC;
fmt->i_format = VLC_CODEC_S16N;
fmt->i_channels = 2; //decklink_sys->i_channels;
fmt->i_physical_channels = AOUT_CHANS_STEREO; //pi_channels_maps[fmt->i_channels];
fmt->i_rate = decklink_sys->i_rate;
fmt->i_bitspersample = 16;
fmt->i_blockalign = fmt->i_channels * fmt->i_bitspersample /8 ;
fmt->i_frame_length = FRAME_SIZE;
return VLC_SUCCESS;
}
static void PlayAudio(audio_output_t *aout, block_t *audio)
{
struct decklink_sys_t *decklink_sys = GetDLSys(VLC_OBJECT(aout));
vlc_mutex_lock(&decklink_sys->lock);
IDeckLinkOutput *p_output = decklink_sys->p_output;
vlc_mutex_unlock(&decklink_sys->lock);
if (!p_output) {
block_Release(audio);
return;
}
audio->i_pts -= decklink_sys->offset;
uint32_t sampleFrameCount = audio->i_buffer / (2 * 2 /*decklink_sys->i_channels*/);
uint32_t written;
HRESULT result = decklink_sys->p_output->ScheduleAudioSamples(
audio->p_buffer, sampleFrameCount, audio->i_pts, CLOCK_FREQ, &written);
if (result != S_OK)
msg_Err(aout, "Failed to schedule audio sample: 0x%X", result);
else if (sampleFrameCount != written)
msg_Err(aout, "Written only %d samples out of %d", written, sampleFrameCount);
block_Release(audio);
}
static int OpenAudio(vlc_object_t *p_this)
{
audio_output_t *aout = (audio_output_t *)p_this;
struct decklink_sys_t *decklink_sys = GetDLSys(VLC_OBJECT(aout));
vlc_mutex_lock(&decklink_sys->lock);
//decklink_sys->i_channels = var_InheritInteger(vd, AUDIO_CFG_PREFIX "audio-channels");
decklink_sys->i_rate = var_InheritInteger(aout, AUDIO_CFG_PREFIX "audio-rate");
decklink_sys->users++;
vlc_cond_signal(&decklink_sys->cond);
vlc_mutex_unlock(&decklink_sys->lock);
aout->play = PlayAudio;
aout->start = Start;
aout->flush = Flush;
aout->time_get = TimeGet;
aout->pause = NULL;
aout->stop = NULL;
aout->mute_set = NULL;
aout->volume_set= NULL;
return VLC_SUCCESS;
}
static void CloseAudio(vlc_object_t *p_this)
{
struct decklink_sys_t *decklink_sys = GetDLSys(p_this);
vlc_mutex_lock(&decklink_sys->lock);
vlc_mutex_unlock(&decklink_sys->lock);
ReleaseDLSys(p_this);
}
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