static int drv_vss_load_core(struct vf_instance *vf)
{
struct vf_priv_s *p = vf->priv;
// First load an empty script to get a VSScript, so that we get the vsapi
// and vscore.
if (vsscript_createScript(&p->se))
return -1;
p->vsapi = vsscript_getVSApi();
p->vscore = vsscript_getCore(p->se);
return 0;
}
bool outputNode() {
if (requests < 1) {
const VSCoreInfo *info = vsapi->getCoreInfo(vsscript_getCore(se));
requests = info->numThreads;
}
const VSVideoInfo *vi = vsapi->getVideoInfo(node);
totalFrames = vi->numFrames;
if (y4m && (vi->format->colorFamily != cmGray && vi->format->colorFamily != cmYUV)) {
errorMessage = "Error: Can only apply y4m headers to YUV and Gray format clips";
fprintf(stderr, "%s\n", errorMessage.c_str());
return true;
}
std::string y4mFormat;
std::string numBits;
if (y4m) {
if (vi->format->colorFamily == cmGray) {
y4mFormat = "mono";
if (vi->format->bitsPerSample > 8)
y4mFormat = y4mFormat + std::to_string(vi->format->bitsPerSample);
} else if (vi->format->colorFamily == cmYUV) {
if (vi->format->subSamplingW == 1 && vi->format->subSamplingH == 1)
y4mFormat = "420";
else if (vi->format->subSamplingW == 1 && vi->format->subSamplingH == 0)
y4mFormat = "422";
else if (vi->format->subSamplingW == 0 && vi->format->subSamplingH == 0)
y4mFormat = "444";
else if (vi->format->subSamplingW == 2 && vi->format->subSamplingH == 2)
y4mFormat = "410";
else if (vi->format->subSamplingW == 2 && vi->format->subSamplingH == 0)
y4mFormat = "411";
else if (vi->format->subSamplingW == 0 && vi->format->subSamplingH == 1)
y4mFormat = "440";
else {
fprintf(stderr, "No y4m identifier exists for current format\n");
return true;
}
if (vi->format->bitsPerSample > 8)
y4mFormat = y4mFormat + "p" + std::to_string(vi->format->bitsPerSample);
} else {
fprintf(stderr, "No y4m identifier exists for current format\n");
return true;
}
}
if (!y4mFormat.empty())
y4mFormat = "C" + y4mFormat + " ";
std::string header = "YUV4MPEG2 " + y4mFormat + "W" + std::to_string(vi->width) + " H" + std::to_string(vi->height) + " F" + std::to_string(vi->fpsNum) + ":" + std::to_string(vi->fpsDen) + " Ip A0:0\n";
if (y4m) {
if (fwrite(header.c_str(), 1, header.size(), outFile) != header.size()) {
errorMessage = "Error: fwrite() call failed when writing initial header, errno: " + std::to_string(errno);
outputError = true;
return outputError;
}
}
std::unique_lock<std::mutex> lock(mutex);
int intitalRequestSize = std::min(requests, totalFrames);
requestedFrames = intitalRequestSize;
for (int n = 0; n < intitalRequestSize; n++)
vsapi->getFrameAsync(n, node, frameDoneCallback, NULL);
condition.wait(lock);
if (outputError) {
fprintf(stderr, "%s\n", errorMessage.c_str());
}
return outputError;
}
static int reinit_vs(struct vf_instance *vf)
{
struct vf_priv_s *p = vf->priv;
VSMap *vars = NULL, *in = NULL, *out = NULL;
int res = -1;
destroy_vs(vf);
MP_DBG(vf, "initializing...\n");
// First load an empty script to get a VSScript, so that we get the vsapi
// and vscore.
if (vsscript_evaluateScript(&p->se, "", NULL, 0))
goto error;
p->vsapi = vsscript_getVSApi();
p->vscore = vsscript_getCore(p->se);
if (!p->vsapi || !p->vscore)
goto error;
in = p->vsapi->createMap();
out = p->vsapi->createMap();
vars = p->vsapi->createMap();
if (!in || !out || !vars)
goto error;
p->vsapi->createFilter(in, out, "Input", infiltInit, infiltGetFrame,
infiltFree, fmSerial, 0, vf, p->vscore);
int vserr;
p->in_node = p->vsapi->propGetNode(out, "clip", 0, &vserr);
if (!p->in_node)
goto error;
if (p->vsapi->propSetNode(vars, "video_in", p->in_node, 0))
goto error;
vsscript_setVariable(p->se, vars);
if (vsscript_evaluateFile(&p->se, p->cfg_file, 0)) {
MP_FATAL(vf, "Script evaluation failed:\n%s\n", vsscript_getError(p->se));
goto error;
}
p->out_node = vsscript_getOutput(p->se, 0);
if (!p->out_node)
goto error;
const VSVideoInfo *vi = p->vsapi->getVideoInfo(p->out_node);
if (!isConstantFormat(vi)) {
MP_FATAL(vf, "Video format is required to be constant.\n");
goto error;
}
MP_DBG(vf, "initialized.\n");
res = 0;
error:
if (p->vsapi) {
p->vsapi->freeMap(in);
p->vsapi->freeMap(out);
p->vsapi->freeMap(vars);
}
if (res < 0)
destroy_vs(vf);
return res;
}
static void VS_CC infiltInit(VSMap *in, VSMap *out, void **instanceData,
VSNode *node, VSCore *core, const VSAPI *vsapi)
{
struct vf_instance *vf = *instanceData;
struct vf_priv_s *p = vf->priv;
// Note: this is called from createFilter, so no need for locking.
VSVideoInfo fmt = {
.format = p->vsapi->getFormatPreset(mp_to_vs(p->fmt_in.imgfmt), p->vscore),
.width = p->fmt_in.w,
.height = p->fmt_in.h,
};
if (!fmt.format) {
p->vsapi->setError(out, "Unsupported input format.\n");
return;
}
p->vsapi->setVideoInfo(&fmt, 1, node);
p->in_node_active = true;
}
static const VSFrameRef *VS_CC infiltGetFrame(int frameno, int activationReason,
void **instanceData, void **frameData,
VSFrameContext *frameCtx, VSCore *core,
const VSAPI *vsapi)
{
struct vf_instance *vf = *instanceData;
struct vf_priv_s *p = vf->priv;
VSFrameRef *ret = NULL;
pthread_mutex_lock(&p->lock);
while (1) {
if (p->shutdown)
break;
if (frameno < p->in_frameno) {
p->vsapi->setFilterError("Requesting a frame too far in the past. "
"Try increasing the maxbuffer suboption",
frameCtx);
break;
}
if (frameno >= p->in_frameno + MP_TALLOC_ELEMS(p->buffered)) {
// Too far in the future. Remove frames, so that the main thread can
// queue new frames.
if (p->num_buffered) {
drain_oldest_buffered_frame(p);
pthread_cond_broadcast(&p->wakeup);
continue;
}
}
if (frameno < p->in_frameno + p->num_buffered) {
struct mp_image *img = p->buffered[frameno - p->in_frameno];
const VSFormat *vsfmt =
vsapi->getFormatPreset(mp_to_vs(img->imgfmt), core);
ret = vsapi->newVideoFrame(vsfmt, img->w, img->h, NULL, core);
if (!ret) {
p->vsapi->setFilterError("Could not allocate VS frame", frameCtx);
break;
}
struct mp_image vsframe = map_vs_frame(p, ret, true);
mp_image_copy(&vsframe, img);
VSMap *map = p->vsapi->getFramePropsRW(ret);
if (map) {
int res = 1e6;
int dur = img->pts * res + 0.5;
p->vsapi->propSetInt(map, "_DurationNum", dur, 0);
p->vsapi->propSetInt(map, "_DurationDen", res, 0);
copy_mp_to_vs_frame_props(p, map, img);
}
break;
}
pthread_cond_wait(&p->wakeup, &p->lock);
}
pthread_mutex_unlock(&p->lock);
return ret;
}
static void VS_CC infiltFree(void *instanceData, VSCore *core, const VSAPI *vsapi)
{
struct vf_instance *vf = instanceData;
struct vf_priv_s *p = vf->priv;
pthread_mutex_lock(&p->lock);
p->in_node_active = false;
pthread_cond_broadcast(&p->wakeup);
pthread_mutex_unlock(&p->lock);
}
static void destroy_vs(struct vf_instance *vf)
{
struct vf_priv_s *p = vf->priv;
// Wait until our frame callback returns.
pthread_mutex_lock(&p->lock);
p->shutdown = true;
pthread_cond_broadcast(&p->wakeup);
while (p->getting_frame)
pthread_cond_wait(&p->wakeup, &p->lock);
pthread_mutex_unlock(&p->lock);
if (p->in_node)
p->vsapi->freeNode(p->in_node);
if (p->out_node)
p->vsapi->freeNode(p->out_node);
p->in_node = p->out_node = NULL;
if (p->se)
vsscript_freeScript(p->se);
p->se = NULL;
p->vsapi = NULL;
p->vscore = NULL;
assert(!p->in_node_active);
p->shutdown = false;
talloc_free(p->got_frame);
p->got_frame = NULL;
// Kill queued frames too
for (int n = 0; n < p->num_buffered; n++)
talloc_free(p->buffered[n]);
p->num_buffered = 0;
talloc_free(p->next_image);
p->next_image = NULL;
p->prev_pts = MP_NOPTS_VALUE;
p->out_frameno = p->in_frameno = 0;
}
static int reinit_vs(struct vf_instance *vf)
{
struct vf_priv_s *p = vf->priv;
VSMap *vars = NULL, *in = NULL, *out = NULL;
int res = -1;
destroy_vs(vf);
// First load an empty script to get a VSScript, so that we get the vsapi
// and vscore.
if (vsscript_evaluateScript(&p->se, "", NULL, 0))
goto error;
p->vsapi = vsscript_getVSApi();
p->vscore = vsscript_getCore(p->se);
if (!p->vsapi || !p->vscore)
goto error;
in = p->vsapi->createMap();
out = p->vsapi->createMap();
vars = p->vsapi->createMap();
if (!in || !out || !vars)
goto error;
p->vsapi->createFilter(in, out, "Input", infiltInit, infiltGetFrame,
infiltFree, fmSerial, 0, vf, p->vscore);
int vserr;
p->in_node = p->vsapi->propGetNode(out, "clip", 0, &vserr);
if (!p->in_node)
goto error;
if (p->vsapi->propSetNode(vars, "video_in", p->in_node, 0))
goto error;
vsscript_setVariable(p->se, vars);
if (vsscript_evaluateFile(&p->se, p->cfg_file, 0)) {
MP_FATAL(vf, "Script evaluation failed:\n%s\n", vsscript_getError(p->se));
goto error;
}
p->out_node = vsscript_getOutput(p->se, 0);
if (!p->out_node)
goto error;
const VSVideoInfo *vi = p->vsapi->getVideoInfo(p->out_node);
if (!isConstantFormat(vi)) {
MP_FATAL(vf, "Video format is required to be constant.\n");
goto error;
}
res = 0;
error:
if (p->vsapi) {
p->vsapi->freeMap(in);
p->vsapi->freeMap(out);
p->vsapi->freeMap(vars);
}
if (res < 0)
destroy_vs(vf);
return res;
}
static int config(struct vf_instance *vf, int width, int height,
int d_width, int d_height, unsigned int flags,
unsigned int fmt)
{
struct vf_priv_s *p = vf->priv;
p->fmt_in = (struct mp_image_params){
.imgfmt = fmt,
.w = width,
.h = height,
};
if (reinit_vs(vf) < 0)
return 0;
const VSVideoInfo *vi = p->vsapi->getVideoInfo(p->out_node);
fmt = mp_from_vs(vi->format->id);
if (!fmt) {
MP_FATAL(vf, "Unsupported output format.\n");
destroy_vs(vf);
return 0;
}
vf_rescale_dsize(&d_width, &d_height, width, height, vi->width, vi->height);
return vf_next_config(vf, vi->width, vi->height, d_width, d_height, flags, fmt);
}
static int query_format(struct vf_instance *vf, unsigned int fmt)
{
return mp_to_vs(fmt) != pfNone ? VFCAP_CSP_SUPPORTED : 0;
}
static int control(vf_instance_t *vf, int request, void *data)
{
switch (request) {
case VFCTRL_SEEK_RESET:
if (reinit_vs(vf) < 0)
return CONTROL_ERROR;
return CONTROL_OK;
}
return CONTROL_UNKNOWN;
}
static void uninit(struct vf_instance *vf)
{
struct vf_priv_s *p = vf->priv;
destroy_vs(vf);
vsscript_finalize();
pthread_cond_destroy(&p->wakeup);
pthread_mutex_destroy(&p->lock);
}
static int vf_open(vf_instance_t *vf)
{
struct vf_priv_s *p = vf->priv;
if (!vsscript_init()) {
MP_FATAL(vf, "Could not initialize VapourSynth scripting.\n");
return 0;
}
if (!p->cfg_file || !p->cfg_file[0]) {
MP_FATAL(vf, "'file' parameter must be set.\n");
return 0;
}
pthread_mutex_init(&p->lock, NULL);
pthread_cond_init(&p->wakeup, NULL);
vf->reconfig = NULL;
vf->config = config;
vf->filter_ext = filter_ext;
vf->filter = NULL;
vf->query_format = query_format;
vf->control = control;
vf->uninit = uninit;
p->buffered = talloc_array(vf, struct mp_image *, p->cfg_maxbuffer);
return 1;
}
#define OPT_BASE_STRUCT struct vf_priv_s
static const m_option_t vf_opts_fields[] = {
OPT_STRING("file", cfg_file, 0),
OPT_INTRANGE("maxbuffer", cfg_maxbuffer, 0, 1, 9999, OPTDEF_INT(5)),
{0}
};
const vf_info_t vf_info_vapoursynth = {
.description = "vapoursynth bridge",
.name = "vapoursynth",
.open = vf_open,
.priv_size = sizeof(struct vf_priv_s),
.options = vf_opts_fields,
};
static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
{
vs_hnd_t *h = new vs_hnd_t;
if( !h )
return -1;
FILE *fh = x264_fopen(psz_filename, "rb");
if (!fh)
return -1;
int b_regular = x264_is_regular_file(fh);
fclose(fh);
FAIL_IF_ERROR(!b_regular, "VS input is incompatible with non-regular file `%s'\n", psz_filename);
FAIL_IF_ERROR(!vsscript_init(), "Failed to initialize VapourSynth environment\n");
h->vsapi = vsscript_getVSApi();
if (!h->vsapi) {
fprintf(stderr, "Failed to get VapourSynth API pointer\n");
vsscript_finalize();
return -1;
}
// Should always succeed
if (vsscript_createScript(&h->se)) {
fprintf(stderr, "Script environment initialization failed:\n%s\n", vsscript_getError(h->se));
vsscript_freeScript(h->se);
vsscript_finalize();
return -1;
}
std::string strfilename = psz_filename;
nstring scriptFilename = s2ws(strfilename);
if (vsscript_evaluateFile(&h->se, nstringToUtf8(scriptFilename).c_str(), efSetWorkingDir)) {
fprintf(stderr, "Script evaluation failed:\n%s\n", vsscript_getError(h->se));
vsscript_freeScript(h->se);
vsscript_finalize();
return -1;
}
h->node = vsscript_getOutput(h->se, 0);//outputIndex
if (!h->node) {
fprintf(stderr, "Failed to retrieve output node. Invalid index specified?\n");
vsscript_freeScript(h->se);
vsscript_finalize();
return -1;
}
const VSCoreInfo *vsInfo = h->vsapi->getCoreInfo(vsscript_getCore(h->se));
h->sea = new semaphore(vsInfo->numThreads);
const VSVideoInfo *vi = h->vsapi->getVideoInfo(h->node);
if (vi->format->colorFamily != cmYUV) {
fprintf(stderr, "Can only read YUV format clips");
h->vsapi->freeNode(h->node);
vsscript_freeScript(h->se);
vsscript_finalize();
return -1;
}
if (!isConstantFormat(vi)) {
fprintf(stderr, "Cannot output clips with varying dimensions\n");
h->vsapi->freeNode(h->node);
vsscript_freeScript(h->se);
vsscript_finalize();
return -1;
}
info->width = vi->width;
info->height = vi->height;
info->fps_num = vi->fpsNum;
info->fps_den = vi->fpsDen;
info->thread_safe = 1;
info->num_frames = vi->numFrames;
if (vi->format->subSamplingW == 1 && vi->format->subSamplingH == 1)
info->csp = X264_CSP_I420;
else if (vi->format->subSamplingW == 1 && vi->format->subSamplingH == 0)
info->csp = X264_CSP_I422;
else if (vi->format->subSamplingW == 0 && vi->format->subSamplingH == 0)
info->csp = X264_CSP_I444;
h->bit_depth = vi->format->bitsPerSample;
if (h->bit_depth > 8)
{
info->csp |= X264_CSP_HIGH_DEPTH;
}
*p_handle = (void*)h;
return 0;
}
