static int
Cvt420422 (VideoFilter * f, VideoFrame * frame)
{
ThisFilter * filter = (ThisFilter *) f;
int X, Y, field;
unsigned char * lineout0, * lineout1, * linein;
TF_VARS;
TF_START;
for (field = 1; field > -1; field--)
{
lineout0 = frame->buf + filter->uoff + filter->ocsize + field * filter->ocsize;
lineout1 = lineout0 + filter->cwidth;
linein = frame->buf + filter->uoff + filter->icsize + field * filter->icsize;
for (Y = 0; Y < filter->cheight; Y++)
{
lineout0 -= filter->cwidth * 2;
lineout1 -= filter->cwidth * 2;
linein -= filter->cwidth;
for (X = 0; X < filter->cwidth; X++)
lineout0[X] = lineout1[X] = linein[X];
}
}
frame->size = filter->osize;
frame->codec = FMT_YUV422P;
TF_END(filter, "ConvertYV12->YUV420P: ");
return 0;
}
static int
Cvt422420 (VideoFilter * f, VideoFrame * frame)
{
ThisFilter * filter = (ThisFilter *) f;
int X, Y, field;
unsigned char * lineout, * linein0, * linein1;
TF_VARS;
TF_START;
for (field = 0; field < 2; field++)
{
lineout = frame->buf + filter->uoff + field * filter->ocsize;
linein0 = frame->buf + filter->uoff + field * filter->icsize;
linein1 = linein0 + filter->cwidth;
for (Y = 0; Y < filter->cheight; Y++)
{
for (X = 0; X < filter->cwidth; X++)
lineout[X] = (linein0[X] + linein1[X]) / 2;
lineout += filter->cwidth;
linein0 += filter->cwidth * 2;
linein1 += filter->cwidth * 2;
}
}
frame->size = filter->osize;
frame->codec = FMT_YV12;
TF_END(filter, "ConvertYUV422P->YV12: ");
return 0;
}
int invert(VideoFilter *vf, VideoFrame *frame)
{
int size = frame->size;
unsigned char *buf = frame->buf;
TF_VARS;
(void)vf;
TF_START;
while (size--)
{
*buf = 255 - (*buf);
buf++;
}
TF_END((ThisFilter *)vf, "Invert");
return 0;
}
static int pp(VideoFilter *vf, VideoFrame *frame, int field)
{
(void)field;
ThisFilter* tf = (ThisFilter*)vf;
TF_VARS;
TF_START;
tf->src[0] = tf->dst[0] = frame->buf;
tf->src[1] = tf->dst[1] = frame->buf + tf->ysize;
tf->src[2] = tf->dst[2] = frame->buf + tf->ysize + tf->csize;
if (frame->qscale_table == NULL)
frame->qstride = 0;
tf->ysize = (frame->width) * (frame->height);
tf->csize = tf->ysize / 4;
tf->width = frame->width;
tf->height = frame->height;
tf->srcStride[0] = tf->ysize / (tf->height);
tf->srcStride[1] = tf->csize / (tf->height) * 2;
tf->srcStride[2] = tf->csize / (tf->height) * 2;
tf->dstStride[0] = tf->ysize / (tf->height);
tf->dstStride[1] = tf->csize / (tf->height) * 2;
tf->dstStride[2] = tf->csize / (tf->height) * 2;
pp_postprocess( (const uint8_t**)tf->src, tf->srcStride,
tf->dst, tf->dstStride,
frame->width, frame->height,
(signed char *)(frame->qscale_table), frame->qstride,
tf->mode, tf->context, PP_FORMAT_420);
TF_END(tf, "PostProcess: ");
return 0;
}
static int vflip(VideoFilter *vf, VideoFrame *frame, int field)
{
(void)field;
if (frame->codec != FMT_YV12)
{
fprintf(stderr, "codec %d unsupported for vflip, skipping\n",
frame->codec);
return 0;
}
TF_VARS;
(void)vf;
TF_START;
int ouroffsets[3];
memcpy(ouroffsets, frame->offsets, 3 * sizeof(int));
qsort(ouroffsets, 3, sizeof(int), comp);
int datasize;
datasize = (ouroffsets[1] - ouroffsets[0]) / frame->height;
if (!swap(frame, datasize, ouroffsets[0], 0))
return 0;
datasize = (ouroffsets[2] - ouroffsets[1]) / frame->height;
if (!swap(frame, datasize, ouroffsets[1], 0))
return 0;
datasize = (frame->size - ouroffsets[2]) / frame->height;
if (!swap(frame, datasize, ouroffsets[2], 0))
return 0;
TF_END((ThisFilter *)vf, "VFlip");
return 1;
}
