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ext/mpeg2dec/gstmpeg2dec.*: Add support for 4:4:4 video. Fixes #562086

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Original commit message from CVS:
* ext/mpeg2dec/gstmpeg2dec.c:
* ext/mpeg2dec/gstmpeg2dec.h:
Add support for 4:4:4 video.  Fixes #562086
This commit is contained in:
David Schleef 2008-11-25 03:44:06 +00:00
parent 821d16d9c7
commit 253cb1c7c7
3 changed files with 24 additions and 8 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
2008-11-24 David Schleef <ds@schleef.org>
* ext/mpeg2dec/gstmpeg2dec.c:
* ext/mpeg2dec/gstmpeg2dec.h:
Add support for 4:4:4 video. Fixes #562086
2008-11-24 Sebastian Dröge <sebastian.droege@collabora.co.uk>
Patch by: Simon Holm Thøgersen <odie at cs dot aau dot dk>

23
ext/mpeg2dec/gstmpeg2dec.c
View file

@ -57,6 +57,7 @@ GST_ELEMENT_DETAILS ("mpeg1 and mpeg2 video decoder",
*/
#define WARN_THRESHOLD (5)
//#define enable_user_data
#ifdef enable_user_data
static GstStaticPadTemplate user_data_template_factory =
GST_STATIC_PAD_TEMPLATE ("user_data",
@ -78,7 +79,7 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv, "
"format = (fourcc) { YV12, I420, Y42B }, "
"format = (fourcc) { YV12, I420, Y42B, Y444 }, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], "
"framerate = (fraction) [ 0/1, 2147483647/1 ]")
@ -404,7 +405,7 @@ crop_copy_i422_buffer (GstMpeg2dec * mpeg2dec, GstBuffer * input)
static gboolean
crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer ** buf)
{
gboolean result = FALSE;
gboolean result = TRUE;
GstBuffer *input = *buf;
GstBuffer *outbuf = input;
@ -450,8 +451,9 @@ gst_mpeg2dec_alloc_sized_buf (GstMpeg2dec * mpeg2dec, guint size,
ret = gst_pad_alloc_buffer_and_set_caps (mpeg2dec->srcpad,
GST_BUFFER_OFFSET_NONE, size, GST_PAD_CAPS (mpeg2dec->srcpad), obuf);
if (ret != GST_FLOW_OK)
if (ret != GST_FLOW_OK) {
return ret;
}
/* libmpeg2 needs 16 byte aligned buffers... test for this here
* and if it fails only a single time create our own buffers from
@ -547,8 +549,8 @@ gst_mpeg2dec_negotiate_format (GstMpeg2dec * mpeg2dec)
mpeg2dec->v_offs =
I420_V_OFFSET (mpeg2dec->decoded_width, mpeg2dec->decoded_height);
} else if (sequence->width == sequence->chroma_width ||
sequence->height == sequence->chroma_height) {
} else if (sequence->width == sequence->chroma_width &&
sequence->height != sequence->chroma_height) {
gint halfsize;
fourcc = GST_STR_FOURCC ("Y42B");
@ -558,8 +560,15 @@ gst_mpeg2dec_negotiate_format (GstMpeg2dec * mpeg2dec)
mpeg2dec->u_offs = halfsize;
mpeg2dec->v_offs = halfsize + (halfsize / 2);
} else {
g_warning ("mpeg2dec: 4:4:4 format not yet supported");
return (FALSE);
gint size;
size = mpeg2dec->decoded_width * mpeg2dec->decoded_height;
fourcc = GST_STR_FOURCC ("Y444");
mpeg2dec->format = MPEG2DEC_FORMAT_Y444;
mpeg2dec->size = size * 3;
mpeg2dec->u_offs = size;
mpeg2dec->v_offs = size * 2;
}
if (mpeg2dec->pixel_width == 0 || mpeg2dec->pixel_height == 0) {

3
ext/mpeg2dec/gstmpeg2dec.h
View file

@ -49,7 +49,8 @@ typedef enum
MPEG2DEC_FORMAT_NONE,
MPEG2DEC_FORMAT_I422,
MPEG2DEC_FORMAT_I420,
MPEG2DEC_FORMAT_YV12
MPEG2DEC_FORMAT_YV12,
MPEG2DEC_FORMAT_Y444
} Mpeg2decFormat;
typedef enum