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Implement cropping and correctly handle the different color formats

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This commit is contained in:
Sebastian Dröge 2012-09-12 13:48:01 +02:00
parent 3acc776dd6
commit 65448a3790
1 changed files with 82 additions and 25 deletions
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107
sys/androidmedia/gstamcvideodec.c
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@ -655,6 +655,16 @@ gst_amc_video_dec_set_src_caps (GstAmcVideoDec * self, GstAmcFormat * format)
return FALSE;
}
if (crop_bottom)
height = height - (height - crop_bottom - 1);
if (crop_top)
height = height - crop_top;
if (crop_right)
width = width - (width - crop_right - 1);
if (crop_left)
width = width - crop_left;
gst_format = gst_amc_color_format_to_video_format (color_format);
if (gst_format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (self, "Unknown color format 0x%08x", color_format);
@ -681,6 +691,9 @@ gst_amc_video_dec_set_src_caps (GstAmcVideoDec * self, GstAmcFormat * format)
return TRUE;
}
/* The weird handling of cropping, alignment and everything is taken from
* platform/frameworks/media/libstagefright/colorconversion/ColorConversion.cpp
*/
static gboolean
gst_amc_video_dec_fill_buffer (GstAmcVideoDec * self, gint idx,
const GstAmcBufferInfo * buffer_info, GstBuffer * outbuf)
@ -711,27 +724,34 @@ gst_amc_video_dec_fill_buffer (GstAmcVideoDec * self, gint idx,
gint i, j, height;
guint8 *src, *dest;
gint src_stride, dest_stride;
gint row_length;
/* FIXME: This doesn't look like it could work with
* odd widths at all. Needs testing and fixing!
*/
for (i = 0; i < 3; i++) {
if (i == 0) {
src_stride = self->stride;
dest_stride = GST_VIDEO_INFO_COMP_STRIDE (info, i);
/* XXX: Try this if no stride was set */
if (src_stride == 0)
src_stride = dest_stride;
} else {
src_stride = self->stride / 2;
src_stride = GST_ROUND_UP_16 (src_stride);
dest_stride = GST_VIDEO_INFO_COMP_STRIDE (info, i);
/* XXX: Try this if no stride was set */
if (src_stride == 0)
src_stride = dest_stride;
}
src = buf->data + buffer_info->offset;
if (i > 0)
if (i == 0) {
src += self->crop_top * self->stride;
src += self->crop_left;
row_length = self->width;
} else if (i > 0) {
src += self->slice_height * self->stride;
src += self->crop_top * src_stride;
src += self->crop_left / 2;
row_length = self->width / 2;
}
if (i == 2)
src += (self->slice_height / 2) * (self->stride / 2);
@ -739,7 +759,7 @@ gst_amc_video_dec_fill_buffer (GstAmcVideoDec * self, gint idx,
height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
for (j = 0; j < height; j++) {
memcpy (dest, src, MIN (src_stride, dest_stride));
memcpy (dest, src, row_length);
src += src_stride;
dest += dest_stride;
}
@ -747,40 +767,77 @@ gst_amc_video_dec_fill_buffer (GstAmcVideoDec * self, gint idx,
ret = TRUE;
break;
}
case COLOR_FormatYUV420SemiPlanar:
case COLOR_TI_FormatYUV420PackedSemiPlanar:
case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:
case COLOR_QCOM_FormatYUV420SemiPlanar:{
case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:{
gint i, j, height;
guint8 *src, *dest;
gint src_stride, dest_stride;
gint row_length;
for (i = 0; i < 2; i++) {
if (i == 0) {
src_stride = self->stride;
dest_stride = GST_VIDEO_INFO_COMP_STRIDE (info, i);
/* XXX: Try this if no stride was set */
if (src_stride == 0)
src_stride = dest_stride;
} else {
src_stride = self->stride / 2;
src_stride = self->stride;
dest_stride = GST_VIDEO_INFO_COMP_STRIDE (info, i);
/* XXX: Try this if no stride was set */
if (src_stride == 0)
src_stride = dest_stride;
}
src = buf->data + buffer_info->offset;
if (i == 1)
src += self->slice_height * self->stride;
if (i == 0) {
row_length = self->width;
} else if (i == 1) {
src += (self->slice_height - self->crop_top / 2) * self->stride;
row_length = self->width;
}
dest = GST_BUFFER_DATA (outbuf) + GST_VIDEO_INFO_COMP_OFFSET (info, i);
height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
for (j = 0; j < height; j++) {
memcpy (dest, src, MIN (src_stride, dest_stride));
memcpy (dest, src, row_length);
src += src_stride;
dest += dest_stride;
}
}
ret = TRUE;
break;
}
case COLOR_QCOM_FormatYUV420SemiPlanar:
case COLOR_FormatYUV420SemiPlanar:{
gint i, j, height;
guint8 *src, *dest;
gint src_stride, dest_stride;
gint row_length;
/* FIXME: This is untested! */
for (i = 0; i < 2; i++) {
if (i == 0) {
src_stride = self->stride;
dest_stride = GST_VIDEO_INFO_COMP_STRIDE (info, i);
} else {
src_stride = self->stride;
dest_stride = GST_VIDEO_INFO_COMP_STRIDE (info, i);
}
src = buf->data + buffer_info->offset;
if (i == 0) {
src += self->crop_top * self->stride;
src += self->crop_left;
row_length = self->width;
} else if (i == 1) {
src += self->slice_height * self->stride;
src += self->crop_top * self->stride;
src += self->crop_left;
row_length = self->width;
}
dest = GST_BUFFER_DATA (outbuf) + GST_VIDEO_INFO_COMP_OFFSET (info, i);
height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
for (j = 0; j < height; j++) {
memcpy (dest, src, row_length);
src += src_stride;
dest += dest_stride;
}