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/* Schrodinger
* Copyright (C) 2008 David Schleef <ds@schleef.org>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstschroutils.h"
//#define SCHRO_ENABLE_UNSTABLE_API
#include <gst/gst.h>
#include <gst/video/video.h>
#include <schroedinger/schro.h>
#include <schroedinger/schrobitstream.h>
#include <schroedinger/schrovirtframe.h>
#include <math.h>
#include <string.h>
GST_DEBUG_CATEGORY_EXTERN (schro_debug);
#define GST_CAT_DEFAULT schro_debug
typedef struct
{
GstVideoFrame frame;
} FrameData;
static void
gst_schro_frame_free (SchroFrame * frame, void *priv)
{
FrameData *data = priv;
gst_video_frame_unmap (&data->frame);
g_slice_free (FrameData, data);
}
GstBuffer *
gst_schro_frame_get_buffer (SchroFrame * frame)
{
if (frame->priv)
return gst_buffer_ref (((FrameData *) frame->priv)->frame.buffer);
return NULL;
}
SchroFrame *
gst_schro_buffer_wrap (GstBuffer * buf, gboolean write, GstVideoInfo * vinfo)
{
SchroFrame *frame;
GstVideoFrame vframe;
FrameData *data;
gint i;
if (!gst_video_frame_map (&vframe, vinfo, buf,
(write ? GST_MAP_READWRITE : GST_MAP_READ)))
return NULL;
frame = schro_frame_new ();
frame->width = GST_VIDEO_FRAME_WIDTH (&vframe);
frame->height = GST_VIDEO_FRAME_HEIGHT (&vframe);
switch (GST_VIDEO_FRAME_FORMAT (&vframe)) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
frame->format = SCHRO_FRAME_FORMAT_U8_420;
break;
case GST_VIDEO_FORMAT_YUY2:
frame->format = SCHRO_FRAME_FORMAT_YUYV;
break;
case GST_VIDEO_FORMAT_UYVY:
frame->format = SCHRO_FRAME_FORMAT_UYVY;
break;
case GST_VIDEO_FORMAT_AYUV:
frame->format = SCHRO_FRAME_FORMAT_AYUV;
break;
#if SCHRO_CHECK_VERSION(1,0,12)
case GST_VIDEO_FORMAT_ARGB:
frame->format = SCHRO_FRAME_FORMAT_ARGB;
break;
#endif
#if SCHRO_CHECK_VERSION(1,0,11)
case GST_VIDEO_FORMAT_Y42B:
frame->format = SCHRO_FRAME_FORMAT_U8_422;
break;
case GST_VIDEO_FORMAT_Y444:
frame->format = SCHRO_FRAME_FORMAT_U8_444;
break;
case GST_VIDEO_FORMAT_v210:
frame->format = SCHRO_FRAME_FORMAT_v210;
break;
case GST_VIDEO_FORMAT_v216:
frame->format = SCHRO_FRAME_FORMAT_v216;
break;
case GST_VIDEO_FORMAT_AYUV64:
frame->format = SCHRO_FRAME_FORMAT_AY64;
break;
#endif
default:
g_assert_not_reached ();
return NULL;
}
if (SCHRO_FRAME_IS_PACKED (frame->format)) {
frame->components[0].format = frame->format;
frame->components[0].width = frame->width;
frame->components[0].height = frame->height;
frame->components[0].stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, 0);
frame->components[0].length = frame->components[0].stride * frame->height;
frame->components[0].data = vframe.data[0];
frame->components[0].v_shift = 0;
frame->components[0].h_shift = 0;
} else {
for (i = 0; i < GST_VIDEO_FRAME_N_COMPONENTS (&vframe); i++) {
frame->components[i].format = frame->format;
frame->components[i].width = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, i);
frame->components[i].height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);
frame->components[i].stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
frame->components[i].length =
frame->components[i].stride * frame->components[i].height;
frame->components[i].data = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
if (i == 0) {
frame->components[i].v_shift = 0;
frame->components[i].h_shift = 0;
} else {
frame->components[i].v_shift =
SCHRO_FRAME_FORMAT_H_SHIFT (frame->format);
frame->components[i].h_shift =
SCHRO_FRAME_FORMAT_H_SHIFT (frame->format);
}
}
}
data = g_slice_new0 (FrameData);
data->frame = vframe;
schro_frame_set_free_callback (frame, gst_schro_frame_free, data);
return frame;
}
static void
schro_buf_free_func (gpointer priv)
{
SchroBuffer *buffer = (SchroBuffer *) priv;
schro_buffer_unref (buffer);
}
/* takes the reference */
GstBuffer *
gst_schro_wrap_schro_buffer (SchroBuffer * buffer)
{
GstMemory *mem;
GstBuffer *buf;
mem =
gst_memory_new_wrapped (0, buffer->data, buffer->length, 0,
buffer->length, buffer, schro_buf_free_func);
buf = gst_buffer_new ();
gst_buffer_append_memory (buf, mem);
return buf;
}
typedef struct
{
GstMemory *mem;
GstMapInfo info;
} BufferData;
static void
gst_schro_buffer_free (SchroBuffer * buffer, void *priv)
{
BufferData *data = priv;
gst_memory_unmap (data->mem, &data->info);
gst_memory_unref (data->mem);
g_slice_free (BufferData, priv);
}
SchroBuffer *
gst_schro_wrap_gst_buffer (GstBuffer * buffer)
{
SchroBuffer *schrobuf;
GstMemory *mem;
GstMapInfo info;
BufferData *data;
mem = gst_buffer_get_all_memory (buffer);
if (!gst_memory_map (mem, &info, GST_MAP_READ)) {
GST_ERROR ("Couldn't get readable memory from gstbuffer");
return NULL;
}
/* FIXME : We can't control if data won't be read/write outside
* of schro ... */
data = g_slice_new0 (BufferData);
data->info = info;
data->mem = mem;
schrobuf = schro_buffer_new_with_data (info.data, info.size);
schrobuf->free = gst_schro_buffer_free;
schrobuf->priv = data;
return schrobuf;
}
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