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theora: Ignore the center property, always set video to top left

Browse source 
This is not a necessary property, the output will be identical no matter
what.

https://bugzilla.gnome.org/show_bug.cgi?id=594729
This commit is contained in:
Benjamin Otte 2009-09-08 13:18:26 +02:00
parent 7556b0a15e
commit cec6b6ce29
2 changed files with 15 additions and 45 deletions
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2
ext/theora/gsttheoraenc.h
View file

@ -76,7 +76,6 @@ struct _GstTheoraEnc
theora_comment comment;
gboolean initialised;
gboolean center;
GstTheoraEncBorderMode border;
gint video_bitrate; /* bitrate target for Theora video */
@ -92,7 +91,6 @@ struct _GstTheoraEnc
gint info_width, info_height;
gint width, height;
gint offset_x, offset_y;
gint fps_n, fps_d;
GstClockTime next_ts;

58
ext/theora/theoraenc.c
View file

@ -31,8 +31,7 @@
* possible to encode images with other dimensions because an arbitrary
* rectangular cropping region can be set up. This element will automatically
* set up a correct cropping region if the dimensions are not multiples of 16
* pixels. The #GstTheoraEnc::border and #GstTheoraEnc::center properties
* control how this cropping region will be set up.
* pixels.
*
* To control the quality of the encoding, the #GstTheoraEnc::bitrate and
* #GstTheoraEnc::quality properties can be used. These two properties are
@ -107,7 +106,6 @@ _ilog (unsigned int v)
return (ret);
}
#define THEORA_DEF_CENTER TRUE
#define THEORA_DEF_BORDER BORDER_BLACK
#define THEORA_DEF_BITRATE 0
#define THEORA_DEF_QUALITY 48
@ -234,7 +232,7 @@ gst_theora_enc_class_init (GstTheoraEncClass * klass)
g_object_class_install_property (gobject_class, ARG_CENTER,
g_param_spec_boolean ("center", "Center",
"Center image when sizes not multiple of 16", THEORA_DEF_CENTER,
"ignored and kept for API compat only", TRUE,
(GParamFlags) G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_BORDER,
g_param_spec_enum ("border", "Border",
@ -314,7 +312,6 @@ gst_theora_enc_init (GstTheoraEnc * enc, GstTheoraEncClass * g_class)
gst_segment_init (&enc->segment, GST_FORMAT_UNDEFINED);
enc->center = THEORA_DEF_CENTER;
enc->border = THEORA_DEF_BORDER;
enc->video_bitrate = THEORA_DEF_BITRATE;
@ -484,17 +481,8 @@ theora_enc_sink_setcaps (GstPad * pad, GstCaps * caps)
g_assert_not_reached ();
}
/* center image if needed */
if (enc->center) {
/* make sure offset is even, for easier decoding */
enc->offset_x = GST_ROUND_UP_2 ((enc->info_width - enc->width) / 2);
enc->offset_y = GST_ROUND_UP_2 ((enc->info_height - enc->height) / 2);
} else {
enc->offset_x = 0;
enc->offset_y = 0;
}
enc->info.offset_x = enc->offset_x;
enc->info.offset_y = enc->offset_y;
enc->info.offset_x = 0;
enc->info.offset_y = 0;
enc->info.fps_numerator = enc->fps_n = fps_n;
enc->info.fps_denominator = enc->fps_d = fps_d;
@ -878,25 +866,17 @@ theora_enc_init_yuv_buffer (yuv_buffer * yuv, theora_pixelformat format,
static void
copy_plane (guint8 * dest, int dest_width, int dest_height, int dest_stride,
const guint8 * src, int src_width, int src_height, int src_stride,
int offset_x, int offset_y, GstTheoraEncBorderMode border, int black)
GstTheoraEncBorderMode border, int black)
{
int right_x, right_border, i;
int right_border, i;
/* fill top border */
if (border != BORDER_NONE) {
memset (dest, black, dest_stride * offset_y);
}
dest += dest_stride * offset_y;
right_x = src_width + offset_x;
right_border = dest_width - right_x;
right_border = dest_width - src_width;
/* copy source */
for (i = 0; i < src_height; i++) {
memcpy (dest + offset_x, src, src_width);
memcpy (dest, src, src_width);
if (border != BORDER_NONE) {
memset (dest, black, offset_x);
memset (dest + right_x, black, right_border);
memset (dest + src_width, black, right_border);
}
dest += dest_stride;
@ -905,7 +885,7 @@ copy_plane (guint8 * dest, int dest_width, int dest_height, int dest_stride,
/* fill bottom border */
if (border != BORDER_NONE) {
memset (dest, black, dest_stride * (dest_height - src_height - offset_y));
memset (dest, black, dest_stride * (dest_height - src_height));
}
}
@ -930,8 +910,6 @@ 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");
@ -955,18 +933,12 @@ theora_enc_resize_buffer (GstTheoraEnc * enc, GstBuffer * buffer)
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;
src.y, src.y_width, src.y_height, src.y_stride, enc->border, 0);
copy_plane (dest.u, dest.uv_width, dest.uv_height, dest.uv_stride,
src.u, src.uv_width, src.uv_height, src.uv_stride,
uv_offset_x, uv_offset_y, enc->border, 128);
src.u, src.uv_width, src.uv_height, src.uv_stride, 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,
uv_offset_x, uv_offset_y, enc->border, 128);
src.v, src.uv_width, src.uv_height, src.uv_stride, enc->border, 128);
gst_buffer_unref (buffer);
return newbuf;
@ -1250,7 +1222,7 @@ theora_enc_set_property (GObject * object, guint prop_id,
switch (prop_id) {
case ARG_CENTER:
enc->center = g_value_get_boolean (value);
/* kept for API compat, but ignored */
break;
case ARG_BORDER:
enc->border = g_value_get_enum (value);
@ -1306,7 +1278,7 @@ theora_enc_get_property (GObject * object, guint prop_id,
switch (prop_id) {
case ARG_CENTER:
g_value_set_boolean (value, enc->center);
g_value_set_boolean (value, TRUE);
break;
case ARG_BORDER:
g_value_set_enum (value, enc->border);