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Added bgr0 implement seeking to frames/samples

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Original commit message from CVS:
Added bgr0
implement seeking to frames/samples
Small cleanups
This commit is contained in:
Wim Taymans 2002-06-16 20:49:22 +00:00
parent db81699feb
commit b60d031126
1 changed files with 44 additions and 9 deletions
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53
ext/dv/gstdvdec.c
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@ -97,11 +97,25 @@ GST_PAD_TEMPLATE_FACTORY (video_src_temp,
"format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
"bpp", GST_PROPS_INT(24),
"depth", GST_PROPS_INT(24),
"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
"red_mask", GST_PROPS_INT(0x0000ff),
"green_mask", GST_PROPS_INT(0x00ff00),
"blue_mask", GST_PROPS_INT(0xff0000),
"width", GST_PROPS_INT (720),
"height", GST_PROPS_INT_RANGE (NTSC_HEIGHT, PAL_HEIGHT)
),
GST_CAPS_NEW (
"dv_dec_src",
"video/raw",
"format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
"bpp", GST_PROPS_INT(32),
"depth", GST_PROPS_INT(32),
"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
"red_mask", GST_PROPS_INT(0x00ff0000),
"green_mask", GST_PROPS_INT(0x0000ff00),
"blue_mask", GST_PROPS_INT(0x000000ff),
"width", GST_PROPS_INT (720),
"height", GST_PROPS_INT_RANGE (NTSC_HEIGHT, PAL_HEIGHT)
)
)
@ -487,9 +501,17 @@ gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event)
gint64 position;
GstFormat format;
/* first try to figure out the byteoffset of this seek event */
/* first bring the format to time */
format = GST_FORMAT_TIME;
if (!gst_pad_convert (pad, GST_EVENT_SEEK_FORMAT (event), GST_EVENT_SEEK_OFFSET (event),
&format, &position)) {
/* could not convert seek format to byte offset */
res = FALSE;
break;
}
/* then try to figure out the byteoffset for this time */
format = GST_FORMAT_BYTES;
if (!gst_pad_convert (dvdec->sinkpad, GST_EVENT_SEEK_FORMAT (event), GST_EVENT_SEEK_OFFSET (event),
if (!gst_pad_convert (dvdec->sinkpad, GST_FORMAT_TIME, position,
&format, &position)) {
/* could not convert seek format to byte offset */
res = FALSE;
@ -577,8 +599,17 @@ gst_dvdec_loop (GstElement *element)
gst_caps_get_fourcc_int (to_try, "format", &fourcc);
if (fourcc == GST_STR_FOURCC ("RGB ")) {
dvdec->space = e_dv_color_rgb;
dvdec->bpp = 3;
gint bpp;
gst_caps_get_int (to_try, "bpp", &bpp);
if (bpp == 24) {
dvdec->space = e_dv_color_rgb;
dvdec->bpp = 3;
}
else {
dvdec->space = e_dv_color_bgr0;
dvdec->bpp = 4;
}
}
else {
dvdec->space = e_dv_color_yuv;
@ -670,12 +701,16 @@ gst_dvdec_loop (GstElement *element)
outframe = GST_BUFFER_DATA (outbuf);
outframe_ptrs[0] = outframe;
outframe_ptrs[1] = outframe_ptrs[0] + 720 * height;
outframe_ptrs[2] = outframe_ptrs[1] + 360 * height;
outframe_pitches[0] = 720 * dvdec->bpp;
outframe_pitches[1] = height / 2;
outframe_pitches[2] = height / 2;
/* the rest only matters for YUY2 */
if (dvdec->bpp < 3) {
outframe_ptrs[1] = outframe_ptrs[0] + 720 * height;
outframe_ptrs[2] = outframe_ptrs[1] + 360 * height;
outframe_pitches[1] = height / 2;
outframe_pitches[2] = outframe_pitches[1];
}
dv_decode_full_frame (dvdec->decoder, GST_BUFFER_DATA (buf),
dvdec->space, outframe_ptrs, outframe_pitches);