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dvdspu element donated by Fluendo. It implements a DVD Sub-Picture

Browse source 
Original commit message from CVS:
* configure.ac:
* gst/dvdspu/.cvsignore:
* gst/dvdspu/Notes.txt:
* gst/dvdspu/gstdvdspu-render.c: (dvdspu_recalc_palette),
(dvdspu_update_palettes), (dvdspu_clear_comp_buffers),
(dvdspu_get_nibble), (dvdspu_get_rle_code), (dvdspu_draw_rle_run),
(rle_end_x), (dvdspu_render_line), (dvdspu_update_chgcol),
(dvdspu_render_line_with_chgcol), (dvdspu_blend_comp_buffers),
(gstdvdspu_render_spu):
* gst/dvdspu/gstdvdspu.c: (dvdspu_base_init), (dvdspu_class_init),
(dvdspu_init), (dvdspu_clear), (dvdspu_dispose), (dvdspu_finalize),
(dvdspu_flush_spu_info), (dvdspu_buffer_alloc), (dvdspu_src_event),
(dvdspu_video_set_caps), (dvdspu_video_proxy_getcaps),
(dvdspu_video_event), (dvdspu_video_chain),
(dvspu_handle_vid_buffer), (dvdspu_redraw_still),
(gstdvdspu_parse_chg_colcon), (dvdspu_exec_cmd_blk),
(dvdspu_finish_spu_buf), (dvdspu_setup_cmd_blk),
(dvdspu_handle_new_spu_buf), (dvdspu_handle_dvd_event),
(dvdspu_dump_dcsq), (dvdspu_advance_spu),
(dvdspu_check_still_updates), (dvdspu_subpic_chain),
(dvdspu_subpic_event), (dvdspu_change_state),
(gstdvdspu_plugin_init):
* gst/dvdspu/gstdvdspu.h:
dvdspu element donated by Fluendo. It implements a DVD Sub-Picture
Unit, decoding and overlaying DVD subtitles and menu graphics.
* gst/mpeg2sub/.cvsignore:
* gst/mpeg2sub/Makefile.am:
* gst/mpeg2sub/Notes.txt:
* gst/mpeg2sub/gstmpeg2subt.c:
* gst/mpeg2sub/gstmpeg2subt.h:
* gst/mpeg2sub/mpeg2subt.vcproj:
Delete old and broken mpeg2subt element that was never ported from 0.8
This commit is contained in:
Jan Schmidt 2007-08-27 14:33:59 +00:00
parent b0d65aa59b
commit 077f84ac1f
11 changed files with 2162 additions and 1323 deletions
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37
ChangeLog
View file

@ -1,3 +1,40 @@
2007-08-27 Jan Schmidt <thaytan@mad.scientist.com>
* configure.ac:
* gst/dvdspu/.cvsignore:
* gst/dvdspu/Notes.txt:
* gst/dvdspu/gstdvdspu-render.c: (dvdspu_recalc_palette),
(dvdspu_update_palettes), (dvdspu_clear_comp_buffers),
(dvdspu_get_nibble), (dvdspu_get_rle_code), (dvdspu_draw_rle_run),
(rle_end_x), (dvdspu_render_line), (dvdspu_update_chgcol),
(dvdspu_render_line_with_chgcol), (dvdspu_blend_comp_buffers),
(gstdvdspu_render_spu):
* gst/dvdspu/gstdvdspu.c: (dvdspu_base_init), (dvdspu_class_init),
(dvdspu_init), (dvdspu_clear), (dvdspu_dispose), (dvdspu_finalize),
(dvdspu_flush_spu_info), (dvdspu_buffer_alloc), (dvdspu_src_event),
(dvdspu_video_set_caps), (dvdspu_video_proxy_getcaps),
(dvdspu_video_event), (dvdspu_video_chain),
(dvspu_handle_vid_buffer), (dvdspu_redraw_still),
(gstdvdspu_parse_chg_colcon), (dvdspu_exec_cmd_blk),
(dvdspu_finish_spu_buf), (dvdspu_setup_cmd_blk),
(dvdspu_handle_new_spu_buf), (dvdspu_handle_dvd_event),
(dvdspu_dump_dcsq), (dvdspu_advance_spu),
(dvdspu_check_still_updates), (dvdspu_subpic_chain),
(dvdspu_subpic_event), (dvdspu_change_state),
(gstdvdspu_plugin_init):
* gst/dvdspu/gstdvdspu.h:
dvdspu element donated by Fluendo. It implements a DVD Sub-Picture
Unit, decoding and overlaying DVD subtitles and menu graphics.
* gst/mpeg2sub/.cvsignore:
* gst/mpeg2sub/Makefile.am:
* gst/mpeg2sub/Notes.txt:
* gst/mpeg2sub/gstmpeg2subt.c:
* gst/mpeg2sub/gstmpeg2subt.h:
* gst/mpeg2sub/mpeg2subt.vcproj:
Delete old and broken mpeg2subt element that was never ported from 0.8
2007-08-24 Julien MOUTTE <julien@moutte.net>
* gst/flv/gstflvdemux.c: (gst_flv_demux_flush),

2
configure.ac
View file

@ -83,6 +83,7 @@ GST_PLUGINS_ALL="\
bayer \
cdxaparse \
deinterlace \
dvdspu \
equalizer \
festival \
filter \
@ -989,6 +990,7 @@ gst/app/Makefile
gst/bayer/Makefile
gst/cdxaparse/Makefile
gst/deinterlace/Makefile
gst/dvdspu/Makefile
gst/equalizer/Makefile
gst/festival/Makefile
gst/filter/Makefile

0
gst/mpeg2sub/.gitignore → gst/dvdspu/.gitignore vendored
View file

0
gst/mpeg2sub/Notes.txt → gst/dvdspu/Notes.txt
View file

521
gst/dvdspu/gstdvdspu-render.c Normal file
View file

@ -0,0 +1,521 @@
/* GStreamer DVD Sub-Picture Unit
* Copyright (C) 2007 Fluendo S.A. <info@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <gst/gst.h>
#include "gstdvdspu.h"
GST_DEBUG_CATEGORY_EXTERN (dvdspu_debug);
#define GST_CAT_DEFAULT dvdspu_debug
static void
dvdspu_recalc_palette (GstDVDSpu * dvdspu,
SpuColour * dest, guint8 * idx, guint8 * alpha)
{
SpuState *state = &dvdspu->spu_state;
gint i;
for (i = 0; i < 4; i++, dest++) {
guint32 col = state->current_clut[idx[i]];
dest->Y = (guint16) ((col >> 16) & 0xff) * alpha[i];
/* U/V are stored as V/U in the clut words, so switch them */
dest->U = (guint16) (col & 0xff) * alpha[i];
dest->V = (guint16) ((col >> 8) & 0xff) * alpha[i];
dest->A = alpha[i];
}
}
/* Recalculate the main, HL & ChgCol palettes */
static void
dvdspu_update_palettes (GstDVDSpu * dvdspu, SpuState * state)
{
gint16 l, c;
guint8 index[4]; /* Indices for the palette */
guint8 alpha[4]; /* Alpha values the palette */
if (state->main_pal_dirty) {
dvdspu_recalc_palette (dvdspu, state->main_pal, state->main_idx,
state->main_alpha);
/* Need to refresh the hl_ctrl info copies of the main palette too */
memcpy (state->hl_ctrl_i.pix_ctrl_i[0].pal_cache, state->main_pal,
4 * sizeof (SpuColour));
memcpy (state->hl_ctrl_i.pix_ctrl_i[2].pal_cache, state->main_pal,
4 * sizeof (SpuColour));
state->main_pal_dirty = FALSE;
}
if (state->hl_pal_dirty) {
dvdspu_recalc_palette (dvdspu, state->hl_ctrl_i.pix_ctrl_i[1].pal_cache,
state->hl_idx, state->hl_alpha);
state->hl_pal_dirty = FALSE;
}
/* Update the offset positions for the highlight region */
if (state->hl_rect.top != -1) {
state->hl_ctrl_i.top = state->hl_rect.top;
state->hl_ctrl_i.bottom = state->hl_rect.bottom;
state->hl_ctrl_i.n_changes = 3;
state->hl_ctrl_i.pix_ctrl_i[0].left = 0;
state->hl_ctrl_i.pix_ctrl_i[1].left = state->hl_rect.left;
state->hl_ctrl_i.pix_ctrl_i[2].left = state->hl_rect.right + 1;
}
if (state->line_ctrl_i_pal_dirty) {
GST_LOG_OBJECT (dvdspu, "Updating chg-col-con palettes");
for (l = 0; l < state->n_line_ctrl_i; l++) {
SpuLineCtrlI *cur_line_ctrl = state->line_ctrl_i + l;
for (c = 0; c < cur_line_ctrl->n_changes; c++) {
SpuPixCtrlI *cur = cur_line_ctrl->pix_ctrl_i + c;
index[3] = (cur->palette >> 28) & 0x0f;
index[2] = (cur->palette >> 24) & 0x0f;
index[1] = (cur->palette >> 20) & 0x0f;
index[0] = (cur->palette >> 16) & 0x0f;
alpha[3] = (cur->palette >> 12) & 0x0f;
alpha[2] = (cur->palette >> 8) & 0x0f;
alpha[1] = (cur->palette >> 4) & 0x0f;
alpha[0] = (cur->palette) & 0x0f;
dvdspu_recalc_palette (dvdspu, cur->pal_cache, index, alpha);
}
}
state->line_ctrl_i_pal_dirty = FALSE;
}
}
static void
dvdspu_clear_comp_buffers (SpuState * state)
{
/* The area to clear is the line inside the disp_rect, each entry 2 bytes,
* of the sub-sampled UV planes. */
gint16 left = state->disp_rect.left / 2;
gint16 right = state->disp_rect.right / 2;
gint16 uv_width = 2 * (right - left + 1);
memset (state->comp_bufs[0] + left, 0, uv_width);
memset (state->comp_bufs[1] + left, 0, uv_width);
memset (state->comp_bufs[2] + left, 0, uv_width);
state->comp_last_x[0] = -1;
state->comp_last_x[1] = -1;
}
static inline guint8
dvdspu_get_nibble (SpuState * state, guint16 * rle_offset)
{
guint8 ret;
if (G_UNLIKELY (*rle_offset >= state->max_offset))
return 0; /* Overran the buffer */
ret = GST_BUFFER_DATA (state->pix_buf)[(*rle_offset) / 2];
/* If the offset is even, we shift the answer down 4 bits, otherwise not */
if (*rle_offset & 0x01)
ret &= 0x0f;
else
ret = ret >> 4;
(*rle_offset)++;
return ret;
}
static guint16
dvdspu_get_rle_code (SpuState * state, guint16 * rle_offset)
{
guint16 code;
code = dvdspu_get_nibble (state, rle_offset);
if (code < 0x4) { /* 4 .. f */
code = (code << 4) | dvdspu_get_nibble (state, rle_offset);
if (code < 0x10) { /* 1x .. 3x */
code = (code << 4) | dvdspu_get_nibble (state, rle_offset);
if (code < 0x40) { /* 04x .. 0fx */
code = (code << 4) | dvdspu_get_nibble (state, rle_offset);
}
}
}
return code;
}
static inline void
dvdspu_draw_rle_run (SpuState * state, gint16 x, gint16 end, SpuColour * colour)
{
#if 0
GST_LOG ("Y: %d x: %d end %d col %d %d %d %d",
state->cur_Y, x, end, colour->Y, colour->U, colour->V, colour->A);
#endif
if (colour->A != 0) {
guint8 inv_A = 0xf - colour->A;
/* FIXME: This could be more efficient */
while (x < end) {
state->out_Y[x] = (inv_A * state->out_Y[x] + colour->Y) / 0xf;
state->out_U[x / 2] += colour->U;
state->out_V[x / 2] += colour->V;
state->out_A[x / 2] += colour->A;
x++;
}
/* Update the compositing buffer so we know how much to blend later */
*(state->comp_last_x_ptr) = end;
}
}
static inline gint16
rle_end_x (guint16 rle_code, gint16 x, gint16 end)
{
/* run length = rle_code >> 2 */
if (G_UNLIKELY (((rle_code >> 2) == 0)))
return end;
else
return MIN (end, x + (rle_code >> 2));
}
static void dvdspu_render_line_with_chgcol (SpuState * state,
guint8 * planes[3], guint16 * rle_offset);
static gboolean dvdspu_update_chgcol (SpuState * state);
static void
dvdspu_render_line (SpuState * state, guint8 * planes[3], guint16 * rle_offset)
{
gint16 x, next_x, end, rle_code;
SpuColour *colour;
/* Check for special case of chg_col info to use (either highlight or
* ChgCol command */
if (state->cur_chg_col != NULL) {
if (dvdspu_update_chgcol (state)) {
/* Check the top & bottom, because we might not be within the region yet */
if (state->cur_Y >= state->cur_chg_col->top &&
state->cur_Y <= state->cur_chg_col->bottom) {
dvdspu_render_line_with_chgcol (state, planes, rle_offset);
return;
}
}
}
/* No special case. Render as normal */
/* Set up our output pointers */
state->out_Y = planes[0];
state->out_U = state->comp_bufs[0];
state->out_V = state->comp_bufs[1];
state->out_A = state->comp_bufs[2];
/* We always need to start our RLE decoding byte_aligned */
*rle_offset = GST_ROUND_UP_2 (*rle_offset);
x = state->disp_rect.left;
end = state->disp_rect.right + 1;
while (x < end) {
rle_code = dvdspu_get_rle_code (state, rle_offset);
colour = &state->main_pal[rle_code & 3];
next_x = rle_end_x (rle_code, x, end);
/* Now draw the run between [x,next_x) */
dvdspu_draw_rle_run (state, x, next_x, colour);
x = next_x;
}
}
static gboolean
dvdspu_update_chgcol (SpuState * state)
{
if (state->cur_chg_col == NULL)
return FALSE;
if (state->cur_Y <= state->cur_chg_col->bottom)
return TRUE;
while (state->cur_chg_col < state->cur_chg_col_end) {
if (state->cur_Y >= state->cur_chg_col->top &&
state->cur_Y <= state->cur_chg_col->bottom) {
#if 0
g_print ("Stopped @ entry %d with top %d bottom %d, cur_y %d",
(gint16) (state->cur_chg_col - state->line_ctrl_i),
state->cur_chg_col->top, state->cur_chg_col->bottom, y);
#endif
return TRUE;
}
state->cur_chg_col++;
}
/* Finished all our cur_chg_col entries. Use the main palette from here on */
state->cur_chg_col = NULL;
return FALSE;
}
static void
dvdspu_render_line_with_chgcol (SpuState * state, guint8 * planes[3],
guint16 * rle_offset)
{
SpuLineCtrlI *chg_col = state->cur_chg_col;
gint16 x, next_x, disp_end, rle_code, run_end;
SpuColour *colour;
SpuPixCtrlI *cur_pix_ctrl;
SpuPixCtrlI *next_pix_ctrl;
SpuPixCtrlI *end_pix_ctrl;
SpuPixCtrlI dummy_pix_ctrl;
gint16 cur_reg_end;
gint i;
state->out_Y = planes[0];
state->out_U = state->comp_bufs[0];
state->out_V = state->comp_bufs[1];
state->out_A = state->comp_bufs[2];
/* We always need to start our RLE decoding byte_aligned */
*rle_offset = GST_ROUND_UP_2 (*rle_offset);
/* Our run will cover the display rect */
x = state->disp_rect.left;
disp_end = state->disp_rect.right + 1;
/* Work out the first pixel control info, which may point to the dummy entry if
* the global palette/alpha need using initally */
cur_pix_ctrl = chg_col->pix_ctrl_i;
end_pix_ctrl = chg_col->pix_ctrl_i + chg_col->n_changes;
if (cur_pix_ctrl->left != 0) {
next_pix_ctrl = cur_pix_ctrl;
cur_pix_ctrl = &dummy_pix_ctrl;
for (i = 0; i < 4; i++) /* Copy the main palette to our dummy entry */
dummy_pix_ctrl.pal_cache[i] = state->main_pal[i];
} else {
next_pix_ctrl = cur_pix_ctrl + 1;
}
if (next_pix_ctrl < end_pix_ctrl)
cur_reg_end = next_pix_ctrl->left;
else
cur_reg_end = disp_end;
/* Render stuff */
while (x < disp_end) {
rle_code = dvdspu_get_rle_code (state, rle_offset);
next_x = rle_end_x (rle_code, x, disp_end);
/* Now draw the run between [x,next_x), crossing palette regions as needed */
while (x < next_x) {
run_end = MIN (next_x, cur_reg_end);
if (G_LIKELY (x < run_end)) {
colour = &cur_pix_ctrl->pal_cache[rle_code & 3];
dvdspu_draw_rle_run (state, x, run_end, colour);
x = run_end;
}
if (x >= cur_reg_end) {
/* Advance to next region */
cur_pix_ctrl = next_pix_ctrl;
next_pix_ctrl++;
if (next_pix_ctrl < end_pix_ctrl)
cur_reg_end = next_pix_ctrl->left;
else
cur_reg_end = disp_end;
}
}
}
}
static void
dvdspu_blend_comp_buffers (SpuState * state, guint8 * planes[3])
{
gint16 uv_end;
gint16 left, x;
guint8 *out_U;
guint8 *out_V;
guint16 *in_U;
guint16 *in_V;
guint16 *in_A;
gint16 comp_last_x = MAX (state->comp_last_x[0], state->comp_last_x[1]);
if (comp_last_x < state->disp_rect.left)
return; /* Didn't draw in the comp buffers, nothing to do... */
#if 0
GST_LOG ("Blending comp buffers from disp_rect.left %d to x=%d",
state->disp_rect.left, comp_last_x);
#endif
/* Set up the output pointers */
out_U = planes[1]; /* U plane */
out_V = planes[2]; /* V plane */
/* Input starts at the first pixel of the compositing buffer */
in_U = state->comp_bufs[0]; /* U comp buffer */
in_V = state->comp_bufs[1]; /* V comp buffer */
in_A = state->comp_bufs[2]; /* A comp buffer */
/* Calculate how many pixels to blend based on the maximum X value that was
* drawn in the render_line function, divided by 2 (rounding up) to account
* for UV sub-sampling */
uv_end = (comp_last_x + 1) / 2;
left = state->disp_rect.left / 2;
for (x = left; x < uv_end; x++) {
guint16 tmp;
guint16 inv_A = (4 * 0xf) - in_A[x];
/* Each entry in the compositing buffer is 4 summed pixels, so the
* inverse alpha is (4 * 0x0f) - in_A[x] */
tmp = in_U[x] + inv_A * out_U[x];
out_U[x] = (guint8) (tmp / (4 * 0xf));
tmp = in_V[x] + inv_A * out_V[x];
out_V[x] = (guint8) (tmp / (4 * 0xf));
}
}
void
gstdvdspu_render_spu (GstDVDSpu * dvdspu, GstBuffer * buf)
{
SpuState *state = &dvdspu->spu_state;
guint8 *planes[3]; /* YUV frame pointers */
gint y, last_y;
/* Set up our initial state */
/* Store the start of each plane */
planes[0] = GST_BUFFER_DATA (buf);
planes[1] = planes[0] + (state->Y_height * state->Y_stride);
planes[2] = planes[1] + (state->UV_height * state->UV_stride);
/* Sanity check */
g_return_if_fail (planes[2] + (state->UV_height * state->UV_stride) <=
GST_BUFFER_DATA (buf) + GST_BUFFER_SIZE (buf));
GST_DEBUG ("Rendering SPU. disp_rect %d,%d to %d,%d. hl_rect %d,%d to %d,%d",
state->disp_rect.left, state->disp_rect.top,
state->disp_rect.right, state->disp_rect.bottom,
state->hl_rect.left, state->hl_rect.top,
state->hl_rect.right, state->hl_rect.bottom);
/* We start rendering from the first line of the display rect */
y = state->disp_rect.top;
/* Update our plane references to the first line of the disp_rect */
planes[0] += state->Y_stride * y;
planes[1] += state->UV_stride * (y / 2);
planes[2] += state->UV_stride * (y / 2);
/* When reading RLE data, we track the offset in nibbles... */
state->cur_offsets[0] = state->pix_data[0] * 2;
state->cur_offsets[1] = state->pix_data[1] * 2;
state->max_offset = GST_BUFFER_SIZE (state->pix_buf) * 2;
/* Update all the palette caches */
dvdspu_update_palettes (dvdspu, state);
/* Set up HL or Change Color & Contrast rect tracking */
if (state->hl_rect.top != -1) {
state->cur_chg_col = &state->hl_ctrl_i;
state->cur_chg_col_end = state->cur_chg_col + 1;
} else if (state->n_line_ctrl_i > 0) {
state->cur_chg_col = state->line_ctrl_i;
state->cur_chg_col_end = state->cur_chg_col + state->n_line_ctrl_i;
} else
state->cur_chg_col = NULL;
/* start_y is always an even number and we render lines in pairs from there,
* accumulating 2 lines of chroma then blending it. We might need to render a
* single line at the end if the display rect ends on an even line too. */
last_y = (state->disp_rect.bottom - 1) & ~(0x01);
for (state->cur_Y = y; state->cur_Y <= last_y; state->cur_Y++) {
/* Reset the compositing buffer */
dvdspu_clear_comp_buffers (state);
/* Render even line */
state->comp_last_x_ptr = state->comp_last_x;
dvdspu_render_line (state, planes, &state->cur_offsets[0]);
/* Advance the luminance output pointer */
planes[0] += state->Y_stride;
state->cur_Y++;
/* Render odd line */
state->comp_last_x_ptr = state->comp_last_x + 1;
dvdspu_render_line (state, planes, &state->cur_offsets[1]);
/* Blend the accumulated UV compositing buffers onto the output */
dvdspu_blend_comp_buffers (state, planes);
/* Update all the output pointers */
planes[0] += state->Y_stride;
planes[1] += state->UV_stride;
planes[2] += state->UV_stride;
}
if (state->cur_Y == state->disp_rect.bottom) {
g_assert ((state->disp_rect.bottom & 0x01) == 0);
/* Render a remaining lone last even line. y already has the correct value
* after the above loop exited. */
dvdspu_clear_comp_buffers (state);
state->comp_last_x_ptr = state->comp_last_x;
dvdspu_render_line (state, planes, &state->cur_offsets[0]);
dvdspu_blend_comp_buffers (state, planes);
}
/* for debugging purposes, draw a faint rectangle at the edges of the disp_rect */
#if 0
do {
guint8 *cur;
gint16 pos;
cur = GST_BUFFER_DATA (buf) + state->Y_stride * state->disp_rect.top;
for (pos = state->disp_rect.left + 1; pos < state->disp_rect.right; pos++)
cur[pos] = (cur[pos] / 2) + 0x8;
cur = GST_BUFFER_DATA (buf) + state->Y_stride * state->disp_rect.bottom;
for (pos = state->disp_rect.left + 1; pos < state->disp_rect.right; pos++)
cur[pos] = (cur[pos] / 2) + 0x8;
cur = GST_BUFFER_DATA (buf) + state->Y_stride * state->disp_rect.top;
for (pos = state->disp_rect.top; pos <= state->disp_rect.bottom; pos++) {
cur[state->disp_rect.left] = (cur[state->disp_rect.left] / 2) + 0x8;
cur[state->disp_rect.right] = (cur[state->disp_rect.right] / 2) + 0x8;
cur += state->Y_stride;
}
} while (0);
#endif
/* For debugging purposes, draw a faint rectangle around the highlight rect */
#if 0
if (state->hl_rect.top != -1) {
guint8 *cur;
gint16 pos;
cur = GST_BUFFER_DATA (buf) + state->Y_stride * state->hl_rect.top;
for (pos = state->hl_rect.left + 1; pos < state->hl_rect.right; pos++)
cur[pos] = (cur[pos] / 2) + 0x8;
cur = GST_BUFFER_DATA (buf) + state->Y_stride * state->hl_rect.bottom;
for (pos = state->hl_rect.left + 1; pos < state->hl_rect.right; pos++)
cur[pos] = (cur[pos] / 2) + 0x8;
cur = GST_BUFFER_DATA (buf) + state->Y_stride * state->hl_rect.top;
for (pos = state->hl_rect.top; pos <= state->hl_rect.bottom; pos++) {
cur[state->hl_rect.left] = (cur[state->hl_rect.left] / 2) + 0x8;
cur[state->hl_rect.right] = (cur[state->hl_rect.right] / 2) + 0x8;
cur += state->Y_stride;
}
}
#endif
}

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gst/dvdspu/gstdvdspu.c Normal file
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gst/dvdspu/gstdvdspu.h Normal file
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/* GStreamer DVD Sub-Picture Unit
* Copyright (C) 2007 Fluendo S.A. <info@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GSTDVDSPU_H__
#define __GSTDVDSPU_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_GSTDVDSPU \
(dvdspu_get_type())
#define GSTDVDSPU(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GSTDVDSPU,GstDVDSpu))
#define GSTDVDSPU_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GSTDVDSPU,GstDVDSpuClass))
#define GST_IS_PLUGIN_TEMPLATE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GSTDVDSPU))
#define GST_IS_PLUGIN_TEMPLATE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GSTDVDSPU))
#define GSTDVDSPU_LOCK(s) g_mutex_lock ((s)->spu_lock);
#define GSTDVDSPU_UNLOCK(s) g_mutex_unlock ((s)->spu_lock);
typedef struct GstDVDSpu GstDVDSpu;
typedef struct GstDVDSpuClass GstDVDSpuClass;
typedef struct SpuRect SpuRect;
typedef struct SpuPixCtrlI SpuPixCtrlI;
typedef struct SpuLineCtrlI SpuLineCtrlI;
typedef struct SpuColour SpuColour;
typedef enum SpuStateFlags SpuStateFlags;
typedef struct SpuState SpuState;
typedef struct SpuPacket SpuPacket;
typedef enum SpuCmd SpuCmd;
/* Describe the limits of a rectangle */
struct SpuRect {
gint16 left;
gint16 top;
gint16 right;
gint16 bottom;
};
/* Store a pre-multiplied colour value. The YUV fields hold the YUV values
* multiplied by the 8-bit alpha, to save computing it while rendering */
struct SpuColour {
guint16 Y;
guint16 U;
guint16 V;
guint8 A;
};
/* Pixel Control Info from a Change Color Contrast command */
struct SpuPixCtrlI {
gint16 left;
guint32 palette;
/* Pre-multiplied palette values, updated as
* needed */
SpuColour pal_cache[4];
};
struct SpuLineCtrlI {
guint8 n_changes; /* 1 to 8 */
SpuPixCtrlI pix_ctrl_i[8];
gint16 top;
gint16 bottom;
};
enum SpuCmd {
SPU_CMD_FSTA_DSP = 0x00, /* Forced Display */
SPU_CMD_DSP = 0x01, /* Display Start */
SPU_CMD_STP_DSP = 0x02, /* Display Off */
SPU_CMD_SET_COLOR = 0x03, /* Set the color indexes for the palette */
SPU_CMD_SET_ALPHA = 0x04, /* Set the alpha indexes for the palette */
SPU_CMD_SET_DAREA = 0x05, /* Set the display area for the SPU */
SPU_CMD_DSPXA = 0x06, /* Pixel data addresses */
SPU_CMD_CHG_COLCON = 0x07, /* Change Color & Contrast */
SPU_CMD_END = 0xff
};
enum SpuStateFlags {
SPU_STATE_NONE = 0x00,
/* Flags cleared on a flush */
SPU_STATE_DISPLAY = 0x01,
SPU_STATE_FORCED_DSP = 0x02,
SPU_STATE_STILL_FRAME = 0x04,
/* Persistent flags */
SPU_STATE_FORCED_ONLY = 0x100
};
#define SPU_STATE_FLAGS_MASK (0xff)
struct SpuState {
GstClockTime next_ts; /* Next event TS in running time */
GstClockTime base_ts; /* base TS for cmd blk delays in running time */
GstBuffer *buf; /* Current SPU packet we're executing commands from */
guint16 cur_cmd_blk; /* Offset into the buf for the current cmd block */
SpuStateFlags flags;
/* Top + Bottom field offsets in the buffer. 0 = not set */
guint16 pix_data[2];
GstBuffer *pix_buf; /* Current SPU packet the pix_data references */
SpuRect disp_rect;
SpuRect hl_rect;
guint32 current_clut[16]; /* Colour lookup table from incoming events */
guint8 main_idx[4]; /* Indices for current main palette */
guint8 main_alpha[4]; /* Alpha values for main palette */
guint8 hl_idx[4]; /* Indices for current highlight palette */
guint8 hl_alpha[4]; /* Alpha values for highlight palette */
/* Pre-multiplied colour palette for the main palette */
SpuColour main_pal[4];
gboolean main_pal_dirty;
/* Line control info for rendering the highlight palette */
SpuLineCtrlI hl_ctrl_i;
gboolean hl_pal_dirty; /* Indicates that the HL palette info needs refreshing */
/* LineCtrlI Info from a Change Color & Contrast command */
SpuLineCtrlI *line_ctrl_i;
gint16 n_line_ctrl_i;
gboolean line_ctrl_i_pal_dirty; /* Indicates that the palettes for the line_ctrl_i
* need recalculating */
/* Rendering state vars below */
guint16 *comp_bufs[3]; /* Compositing buffers for U+V & A */
gint16 comp_last_x[2]; /* Maximum X values we rendered into the comp buffer (odd & even) */
gint16 *comp_last_x_ptr; /* Ptr to the current comp_last_x value to be updated by the render */
gint16 vid_width, vid_height;
gint16 Y_stride, UV_stride;
gint16 Y_height, UV_height;
gint fps_n, fps_d;
/* Current Y Position */
gint16 cur_Y;
/* Current offset in nibbles into the pix_data */
guint16 cur_offsets[2];
guint16 max_offset;
/* current ChgColCon Line Info */
SpuLineCtrlI *cur_chg_col;
SpuLineCtrlI *cur_chg_col_end;
/* Output position tracking */
guint8 *out_Y;
guint16 *out_U;
guint16 *out_V;
guint16 *out_A;
};
/* Structure used to store the queue of pending SPU packets. The start_ts is
* stored in running time...
* Also used to carry in-band events so they remain serialised properly */
struct SpuPacket {
GstClockTime event_ts;
GstBuffer *buf;
GstEvent *event;
};
struct GstDVDSpu
{
GstElement element;
GstPad *videosinkpad;
GstPad *subpic_sinkpad;
GstPad *srcpad;
/* Mutex to protect state we access from different chain funcs */
GMutex *spu_lock;
GstSegment video_seg;
GstSegment subp_seg;
SpuState spu_state;
/* GQueue of SpuBuf structures */
GQueue *pending_spus;
/* Accumulator for collecting partial SPU buffers until they're complete */
GstBuffer *partial_spu;
/* Store either a reference or a copy of the last video frame for duplication
* during still-frame conditions */
GstBuffer *ref_frame;
/* Buffer to push after handling a DVD event, if any */
GstBuffer *pending_frame;
};
struct GstDVDSpuClass
{
GstElementClass parent_class;
};
GType gstdvdspu_get_type (void);
void gstdvdspu_render_spu (GstDVDSpu *dvdspu, GstBuffer *buf);
G_END_DECLS
#endif /* __GSTDVDSPU_H__ */

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gst/mpeg2sub/Makefile.am
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plugin_LTLIBRARIES = libgstmpeg2subt.la
libgstmpeg2subt_la_SOURCES = gstmpeg2subt.c
libgstmpeg2subt_la_CFLAGS = $(GST_CFLAGS)
libgstmpeg2subt_la_LIBADD =
libgstmpeg2subt_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstmpeg2subt.h
EXTRA_DIST = Notes.txt

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gst/mpeg2sub/gstmpeg2subt.c
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gst/mpeg2sub/gstmpeg2subt.h
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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_MPEG2SUBT_H__
#define __GST_MPEG2SUBT_H__
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_MPEG2SUBT \
(gst_mpeg2subt_get_type())
#define GST_MPEG2SUBT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG2SUBT,GstMpeg2Subt))
#define GST_MPEG2SUBT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG2SUBT,GstMpeg2SubtClass))
#define GST_IS_MPEG2SUBT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG2SUBT))
#define GST_IS_MPEG2SUBT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG2SUBT))
typedef struct _GstMpeg2Subt GstMpeg2Subt;
typedef struct _GstMpeg2SubtClass GstMpeg2SubtClass;
/* Hold premultimplied colour values */
typedef struct YUVA_val {
guint16 Y;
guint16 U;
guint16 V;
guint16 A;
} YUVA_val;
struct _GstMpeg2Subt {
GstElement element;
GstPad *videopad,*subtitlepad,*srcpad;
GstBuffer *partialbuf; /* Collect together subtitle buffers until we have a full control sequence */
GstBuffer *hold_frame; /* Hold back one frame of video */
GstBuffer *still_frame;
guint16 packet_size;
guint16 data_size;
gint offset[2];
YUVA_val palette_cache[4];
/*
* Store 1 line width of U, V and A respectively.
* Y is composited direct onto the frame.
*/
guint16 *out_buffers[3];
guchar subtitle_index[4];
guchar menu_index[4];
guchar subtitle_alpha[4];
guchar menu_alpha[4];
guint32 current_clut[16];
gboolean have_title;
gboolean forced_display;
GstClockTime start_display_time;
GstClockTime end_display_time;
gint left, top,
right, bottom;
gint clip_left, clip_top,
clip_right, clip_bottom;
gint in_width, in_height;
gint current_button;
GstData *pending_video_buffer;
GstClockTime next_video_time;
GstData *pending_subtitle_buffer;
GstClockTime next_subtitle_time;
};
struct _GstMpeg2SubtClass {
GstElementClass parent_class;
};
GType gst_mpeg2subt_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_MPEG2SUBT_H__ */

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gst/mpeg2sub/mpeg2subt.vcproj
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@ -1,148 +0,0 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.10"
Name="mpeg2subt"
ProjectGUID="{979C216F-0ACF-4956-AE00-055A42D678BB}"
Keyword="Win32Proj">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="../../win32/Debug"
IntermediateDirectory="../../win32/Debug"
ConfigurationType="2"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;&quot;../../gst-libs&quot;;../../../popt/include;../../../libxml2/include/libxml2"
PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;mpeg2subt_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
MinimalRebuild="TRUE"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="4"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
OutputFile="$(OutDir)/gstmpeg2subt.dll"
LinkIncremental="2"
AdditionalLibraryDirectories="../../../gstreamer/win32/Debug;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
ModuleDefinitionFile=""
GenerateDebugInformation="TRUE"
ProgramDatabaseFile="$(OutDir)/mpeg2subt.pdb"
SubSystem="2"
OptimizeReferences="2"
ImportLibrary="$(OutDir)/gstmpeg2subt.lib"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"
CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="../../win32/Release"
IntermediateDirectory="../../win32/Release"
ConfigurationType="2"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;&quot;../../gst-libs&quot;;../../../popt/include;../../../libxml2/include/libxml2"
PreprocessorDefinitions="WIN32;NDEBUG;GST_DISABLE_GST_DEBUG;_WINDOWS;_USRDLL;mpeg2subt_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
RuntimeLibrary="2"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="3"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
OutputFile="$(OutDir)/gstmpeg2subt.dll"
LinkIncremental="1"
AdditionalLibraryDirectories="../../../gstreamer/win32/Release;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
ModuleDefinitionFile=""
GenerateDebugInformation="TRUE"
SubSystem="2"
OptimizeReferences="2"
EnableCOMDATFolding="2"
ImportLibrary="$(OutDir)/gstmpeg2subt.lib"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"
CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
<File
RelativePath=".\gstmpeg2subt.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc;xsd"
UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
<File
RelativePath=".\gstmpeg2subt.h">
</File>
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
</Filter>
</Files>
<Globals>
</Globals>
</VisualStudioProject>