static int GetSubSamplingW(const VideoInfo &vi) {
if (vi.IsYUV() && vi.IsPlanar())
return vi.GetPlaneWidthSubsampling(PLANAR_U);
else
return 0;
}
int AvxContext::OutputVideo() {
FILE *sink;
unsigned char *writeBuffer = NULL;
sighandler_t old_sigpipe = signal(SIGPIPE, SIG_IGN);
if (launchMPlayer) {
char command[1024];
if (MPlayerCommandVideo(command))
return -1;
AVXLOG_INFO("MPlayer command line: %s", command);
sink = popen(command, "w");
if (!sink) {
AVXLOG_ERROR("%s", "Error starting mplayer");
return -1;
}
} else {
sink = stdout;
}
writeBuffer = (unsigned char *)malloc(vi.RowSize() * vi.height);
if (!writeBuffer) {
AVXLOG_ERROR("%s", "Unable to allocate memory");
goto fail;
}
try {
for (int i = 0; i < vi.num_frames; ++i) {
if (launchMPlayer && (feof(sink) || ferror(sink))) {
AVXLOG_ERROR("%s", "mplayer process exited");
break;
}
PVideoFrame frame = clip->GetFrame(i, avx_library.env);
if (vi.IsPlanar()) { // Check plane count in 2.6.
int planes[] = {PLANAR_Y, PLANAR_V, PLANAR_U};
for (int j = 0; j < 3; ++j) {
int plane = planes[j];
int src_pitch = frame->GetPitch(plane);
int row_size = frame->GetRowSize(plane);
int height = frame->GetHeight(plane);
const unsigned char *srcp = frame->GetReadPtr(plane);
avx_library.env->BitBlt(writeBuffer, row_size, srcp, src_pitch, row_size, height);
fwrite(writeBuffer, 1, row_size * height, sink);
}
} else {
int src_pitch = frame->GetPitch();
int row_size = frame->GetRowSize();
int height = frame->GetHeight();
const unsigned char *srcp = frame->GetReadPtr();
avx_library.env->BitBlt(writeBuffer, row_size, srcp, src_pitch, row_size, height);
fwrite(writeBuffer, 1, row_size * height, sink);
}
}
} catch (AvisynthError &e) {
AVXLOG_ERROR("AvisynthError: %s", e.msg);
goto fail;
}
free(writeBuffer);
if (launchMPlayer)
pclose(sink);
signal(SIGPIPE, old_sigpipe);
return 0;
fail:
if (writeBuffer)
free(writeBuffer);
if (launchMPlayer)
pclose(sink);
signal(SIGPIPE, old_sigpipe);
return -1;
};
