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theora: Implement support in theoraenc for Y444 and Y42B

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Fixes bug #594165.
This commit is contained in:
Benjamin Otte 2009-09-04 21:37:04 +02:00 committed by Sebastian Dröge
parent 96388221cf
commit aa46e56170
1 changed files with 74 additions and 19 deletions
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93
ext/theora/theoraenc.c
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@ -169,7 +169,7 @@ GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv, "
"format = (fourcc) I420, "
"format = (fourcc) { I420, Y42B, Y444 }, "
"framerate = (fraction) [0/1, MAX], "
"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
);
@ -381,9 +381,11 @@ theora_enc_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstStructure *structure = gst_caps_get_structure (caps, 0);
GstTheoraEnc *enc = GST_THEORA_ENC (gst_pad_get_parent (pad));
guint32 fourcc;
const GValue *par;
gint fps_n, fps_d;
gst_structure_get_fourcc (structure, "format", &fourcc);
gst_structure_get_int (structure, "width", &enc->width);
gst_structure_get_int (structure, "height", &enc->height);
gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d);
@ -397,6 +399,19 @@ theora_enc_sink_setcaps (GstPad * pad, GstCaps * caps)
enc->info_height = enc->info.height = (enc->height + 15) & ~15;
enc->info.frame_width = enc->width;
enc->info.frame_height = enc->height;
switch (fourcc) {
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
enc->info.pixelformat = OC_PF_420;
break;
case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
enc->info.pixelformat = OC_PF_422;
break;
case GST_MAKE_FOURCC ('Y', '4', '4', '4'):
enc->info.pixelformat = OC_PF_444;
break;
default:
g_assert_not_reached ();
}
/* center image if needed */
if (enc->center) {
@ -753,20 +768,39 @@ theora_enc_is_discontinuous (GstTheoraEnc * enc, GstClockTime timestamp,
}
static void
theora_enc_init_yuv_buffer (yuv_buffer * yuv,
theora_enc_init_yuv_buffer (yuv_buffer * yuv, theora_pixelformat format,
guint8 * data, gint width, gint height)
{
yuv->y = data;
yuv->y_width = width;
yuv->y_height = height;
yuv->y_stride = GST_ROUND_UP_4 (width);
yuv->uv_width = width / 2;
yuv->uv_height = height / 2;
yuv->uv_stride = GST_ROUND_UP_8 (width) / 2;
yuv->y = data;
yuv->u = yuv->y + GST_ROUND_UP_2 (height) * yuv->y_stride;
yuv->v = yuv->u + GST_ROUND_UP_2 (height) / 2 * yuv->uv_stride;
switch (format) {
case OC_PF_444:
yuv->uv_width = width;
yuv->uv_height = height;
yuv->uv_stride = GST_ROUND_UP_4 (width);
yuv->u = yuv->y + height * yuv->y_stride;
yuv->v = yuv->u + height * yuv->uv_stride;
break;
case OC_PF_420:
yuv->uv_width = width / 2;
yuv->uv_height = height / 2;
yuv->uv_stride = GST_ROUND_UP_8 (width) / 2;
yuv->u = yuv->y + GST_ROUND_UP_2 (height) * yuv->y_stride;
yuv->v = yuv->u + GST_ROUND_UP_2 (height) / 2 * yuv->uv_stride;
break;
case OC_PF_422:
yuv->uv_width = width / 2;
yuv->uv_height = height;
yuv->uv_stride = GST_ROUND_UP_8 (width) / 2;
yuv->u = yuv->y + height * yuv->y_stride;
yuv->v = yuv->u + height * yuv->uv_stride;
break;
default:
g_assert_not_reached ();
}
}
/* NB: This function does no input checking */
@ -804,11 +838,29 @@ copy_plane (guint8 * dest, int dest_width, int dest_height, int dest_stride,
}
}
static guint
theora_format_get_bits_per_pixel (theora_pixelformat format)
{
switch (format) {
case OC_PF_420:
return 12;
case OC_PF_422:
return 16;
case OC_PF_444:
return 24;
default:
g_assert_not_reached ();
return 0;
}
}
static GstBuffer *
theora_enc_resize_buffer (GstTheoraEnc * enc, GstBuffer * buffer)
{
yuv_buffer dest, src;
GstBuffer *newbuf;
int uv_offset_x;
int uv_offset_y;
if (enc->width == enc->info_width && enc->height == enc->info_height) {
GST_LOG_OBJECT (enc, "no cropping/conversion needed");
@ -817,8 +869,8 @@ theora_enc_resize_buffer (GstTheoraEnc * enc, GstBuffer * buffer)
GST_LOG_OBJECT (enc, "cropping/conversion needed for strides");
newbuf =
gst_buffer_new_and_alloc (enc->info_width * enc->info_height * 3 / 2);
newbuf = gst_buffer_new_and_alloc (enc->info_width * enc->info_height *
theora_format_get_bits_per_pixel (enc->info.pixelformat) / 8);
if (!newbuf) {
gst_buffer_unref (buffer);
return NULL;
@ -826,21 +878,24 @@ theora_enc_resize_buffer (GstTheoraEnc * enc, GstBuffer * buffer)
GST_BUFFER_OFFSET (newbuf) = GST_BUFFER_OFFSET_NONE;
gst_buffer_set_caps (newbuf, GST_PAD_CAPS (enc->srcpad));
theora_enc_init_yuv_buffer (&src, GST_BUFFER_DATA (buffer),
enc->width, enc->height);
theora_enc_init_yuv_buffer (&dest, GST_BUFFER_DATA (newbuf),
enc->info_width, enc->info_height);
theora_enc_init_yuv_buffer (&src, enc->info.pixelformat,
GST_BUFFER_DATA (buffer), enc->width, enc->height);
theora_enc_init_yuv_buffer (&dest, enc->info.pixelformat,
GST_BUFFER_DATA (newbuf), enc->info_width, enc->info_height);
copy_plane (dest.y, dest.y_width, dest.y_height, dest.y_stride,
src.y, src.y_width, src.y_height, src.y_stride,
enc->offset_x, enc->offset_y, enc->border, 0);
uv_offset_x = enc->offset_x * dest.uv_width / dest.y_width;
uv_offset_y = enc->offset_y * dest.uv_height / dest.y_height;
copy_plane (dest.u, dest.uv_width, dest.uv_height, dest.uv_stride,
src.u, src.uv_width, src.uv_height, src.uv_stride,
enc->offset_x / 2, enc->offset_y / 2, enc->border, 128);
uv_offset_x, uv_offset_y, enc->border, 128);
copy_plane (dest.v, dest.uv_width, dest.uv_height, dest.uv_stride,
src.v, src.uv_width, src.uv_height, src.uv_stride,
enc->offset_x / 2, enc->offset_y / 2, enc->border, 128);
uv_offset_x, uv_offset_y, enc->border, 128);
gst_buffer_unref (buffer);
return newbuf;
@ -1008,8 +1063,8 @@ theora_enc_chain (GstPad * pad, GstBuffer * buffer)
if (buffer == NULL)
return GST_FLOW_ERROR;
theora_enc_init_yuv_buffer (&yuv, GST_BUFFER_DATA (buffer), enc->info_width,
enc->info_height);
theora_enc_init_yuv_buffer (&yuv, enc->info.pixelformat,
GST_BUFFER_DATA (buffer), enc->info_width, enc->info_height);
if (theora_enc_is_discontinuous (enc, running_time, duration)) {
theora_enc_reset (enc);