static GstFlowReturn
gst_pnmdec_push (GstPnmdec * s, GstPad * src, GstBuffer * buf)
{
/* Need to convert from PNM rowstride to GStreamer rowstride */
if (s->mngr.info.width % 4 != 0) {
guint i_rowstride;
guint o_rowstride;
GstBuffer *obuf;
guint i;
if (s->mngr.info.type == GST_PNM_TYPE_PIXMAP_RAW ||
s->mngr.info.type == GST_PNM_TYPE_PIXMAP_ASCII) {
i_rowstride = 3 * s->mngr.info.width;
o_rowstride = GST_ROUND_UP_4 (i_rowstride);
} else {
i_rowstride = s->mngr.info.width;
o_rowstride = GST_ROUND_UP_4 (i_rowstride);
}
obuf = gst_buffer_new_and_alloc (o_rowstride * s->mngr.info.height);
gst_buffer_copy_metadata (obuf, buf, GST_BUFFER_COPY_ALL);
for (i = 0; i < s->mngr.info.height; i++)
memcpy (GST_BUFFER_DATA (obuf) + i * o_rowstride,
GST_BUFFER_DATA (buf) + i * i_rowstride, i_rowstride);
gst_buffer_unref (buf);
return gst_pad_push (src, obuf);
} else {
return gst_pad_push (src, buf);
}
}
static GstFlowReturn
mxf_up_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
GstCaps * caps,
MXFMetadataTimelineTrack * track,
gpointer mapping_data, GstBuffer ** outbuf)
{
MXFUPMappingData *data = mapping_data;
/* SMPTE 384M 7.1 */
if (key->u[12] != 0x15 || (key->u[14] != 0x01 && key->u[14] != 0x02
&& key->u[14] != 0x03 && key->u[14] != 0x04)) {
GST_ERROR ("Invalid uncompressed picture essence element");
return GST_FLOW_ERROR;
}
if (!data || (data->image_start_offset == 0 && data->image_end_offset == 0)) {
} else {
if (data->image_start_offset + data->image_end_offset
> GST_BUFFER_SIZE (buffer)) {
gst_buffer_unref (buffer);
GST_ERROR ("Invalid buffer size");
return GST_FLOW_ERROR;
} else {
GST_BUFFER_DATA (buffer) += data->image_start_offset;
GST_BUFFER_SIZE (buffer) -= data->image_start_offset;
GST_BUFFER_SIZE (buffer) -= data->image_end_offset;
}
}
if (GST_BUFFER_SIZE (buffer) != data->bpp * data->width * data->height) {
GST_ERROR ("Invalid buffer size");
return GST_FLOW_ERROR;
}
if (data->bpp != 4
|| GST_ROUND_UP_4 (data->width * data->bpp) != data->width * data->bpp) {
guint y;
GstBuffer *ret;
guint8 *indata, *outdata;
ret =
gst_buffer_new_and_alloc (GST_ROUND_UP_4 (data->width * data->bpp) *
data->height);
indata = GST_BUFFER_DATA (buffer);
outdata = GST_BUFFER_DATA (ret);
for (y = 0; y < data->height; y++) {
memcpy (outdata, indata, data->width * data->bpp);
outdata += GST_ROUND_UP_4 (data->width * data->bpp);
indata += data->width * data->bpp;
}
gst_buffer_unref (buffer);
*outbuf = ret;
} else {
*outbuf = buffer;
}
return GST_FLOW_OK;
}
static gboolean
gst_phoenixsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
GstPhoenixSrc *src = GST_PHOENIX_SRC (bsrc);
GstVideoInfo vinfo;
GstStructure *s = gst_caps_get_structure (caps, 0);
GST_DEBUG_OBJECT (src, "The caps being set are %" GST_PTR_FORMAT, caps);
gst_video_info_from_caps (&vinfo, caps);
if (g_str_equal ("video/x-bayer", gst_structure_get_name (s))) {
gint width;
const gchar *format;
gst_structure_get_int (s, "width", &width);
gst_structure_get_int (s, "height", &src->height);
format = gst_structure_get_string (s, "format");
if (g_str_has_suffix (format, "16"))
src->gst_stride = GST_ROUND_UP_4 (width * 2);
else
src->gst_stride = GST_ROUND_UP_4 (width);
} else if (GST_VIDEO_INFO_FORMAT (&vinfo) != GST_VIDEO_FORMAT_UNKNOWN) {
src->gst_stride = GST_VIDEO_INFO_COMP_STRIDE (&vinfo, 0);
src->height = vinfo.height;
} else {
goto unsupported_caps;
}
return TRUE;
unsupported_caps:
GST_ERROR_OBJECT (src, "Unsupported caps: %" GST_PTR_FORMAT, caps);
return FALSE;
}
gint
gst_xvid_image_fill (xvid_image_t * im, void *ptr, gint csp,
gint width, gint height)
{
gint stride, h2, size = 0;
im->csp = csp;
switch (csp) {
case XVID_CSP_I420:
case XVID_CSP_YV12:
/* planar */
/* luma */
stride = GST_ROUND_UP_4 (width);
h2 = GST_ROUND_UP_2 (height);
im->stride[0] = stride;
im->plane[0] = ptr;
/* chroma */
im->plane[1] = ((guint8 *) im->plane[0]) + (stride * h2);
size += stride * height;
stride = GST_ROUND_UP_8 (width) / 2;
h2 = GST_ROUND_UP_2 (height) / 2;
im->stride[1] = stride;
im->plane[2] = ((guint8 *) im->plane[1]) + (stride * h2);
im->stride[2] = stride;
size += 2 * (stride * h2);
break;
case XVID_CSP_RGB555:
case XVID_CSP_RGB565:
case XVID_CSP_YUY2:
case XVID_CSP_UYVY:
case XVID_CSP_YVYU:
/* packed */
stride = GST_ROUND_UP_4 (width * 2);
im->plane[0] = ptr;
im->stride[0] = stride;
size = stride * height;
break;
case XVID_CSP_BGR:
stride = GST_ROUND_UP_4 (width * 3);
im->plane[0] = ptr;
im->stride[0] = stride;
size = stride * height * 2;
break;
case XVID_CSP_ABGR:
case XVID_CSP_BGRA:
case XVID_CSP_RGBA:
#ifdef XVID_CSP_ARGB
case XVID_CSP_ARGB:
#endif
stride = width * 4;
im->plane[0] = ptr;
im->stride[0] = stride;
size = stride * height;
break;
}
return size;
}
/* based on upstream gst-plugins-good jpegencoder */
static void
generate_sampling_factors (GstVaapiEncoderJpeg * encoder)
{
GstVideoInfo *vinfo;
gint i;
vinfo = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
if (GST_VIDEO_INFO_FORMAT (vinfo) == GST_VIDEO_FORMAT_ENCODED) {
/* Use native I420 format */
encoder->n_components = 3;
for (i = 0; i < encoder->n_components; ++i) {
if (i == 0)
encoder->h_samp[i] = encoder->v_samp[i] = 2;
else
encoder->h_samp[i] = encoder->v_samp[i] = 1;
GST_DEBUG ("sampling factors: %d %d", encoder->h_samp[i],
encoder->v_samp[i]);
}
return;
}
encoder->n_components = GST_VIDEO_INFO_N_COMPONENTS (vinfo);
encoder->h_max_samp = 0;
encoder->v_max_samp = 0;
for (i = 0; i < encoder->n_components; ++i) {
encoder->cwidth[i] = GST_VIDEO_INFO_COMP_WIDTH (vinfo, i);
encoder->cheight[i] = GST_VIDEO_INFO_COMP_HEIGHT (vinfo, i);
encoder->h_samp[i] =
GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (vinfo)) / encoder->cwidth[i];
encoder->h_max_samp = MAX (encoder->h_max_samp, encoder->h_samp[i]);
encoder->v_samp[i] =
GST_ROUND_UP_4 (GST_VIDEO_INFO_HEIGHT (vinfo)) / encoder->cheight[i];
encoder->v_max_samp = MAX (encoder->v_max_samp, encoder->v_samp[i]);
}
/* samp should only be 1, 2 or 4 */
g_assert (encoder->h_max_samp <= 4);
g_assert (encoder->v_max_samp <= 4);
/* now invert */
/* maximum is invariant, as one of the components should have samp 1 */
for (i = 0; i < encoder->n_components; ++i) {
encoder->h_samp[i] = encoder->h_max_samp / encoder->h_samp[i];
encoder->v_samp[i] = encoder->v_max_samp / encoder->v_samp[i];
GST_DEBUG ("sampling factors: %d %d", encoder->h_samp[i],
encoder->v_samp[i]);
}
}
static gboolean
gst_bayer2rgb_get_unit_size (GstBaseTransform * base, GstCaps * caps,
guint * size)
{
GstStructure *structure;
int width;
int height;
int pixsize;
const char *name;
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_get_int (structure, "width", &width) &&
gst_structure_get_int (structure, "height", &height)) {
name = gst_structure_get_name (structure);
/* Our name must be either video/x-raw-bayer video/x-raw-rgb */
if (strcmp (name, "video/x-raw-rgb")) {
/* For bayer, we handle only BA81 (BGGR), which is BPP=24 */
*size = GST_ROUND_UP_4 (width) * height;
return TRUE;
} else {
/* For output, calculate according to format */
if (gst_structure_get_int (structure, "bpp", &pixsize)) {
*size = width * height * (pixsize / 8);
return TRUE;
}
}
}
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Incomplete caps, some required field missing"));
return FALSE;
}
static gboolean
gst_bayer2rgb_set_caps (GstBaseTransform * base, GstCaps * incaps,
GstCaps * outcaps)
{
GstBayer2RGB *filter = GST_BAYER2RGB (base);
GstStructure *structure;
int val, bpp;
GST_DEBUG ("in caps %" GST_PTR_FORMAT " out caps %" GST_PTR_FORMAT, incaps,
outcaps);
structure = gst_caps_get_structure (incaps, 0);
gst_structure_get_int (structure, "width", &filter->width);
gst_structure_get_int (structure, "height", &filter->height);
filter->stride = GST_ROUND_UP_4 (filter->width);
/* To cater for different RGB formats, we need to set params for later */
structure = gst_caps_get_structure (outcaps, 0);
gst_structure_get_int (structure, "bpp", &bpp);
filter->pixsize = bpp / 8;
gst_structure_get_int (structure, "red_mask", &val);
filter->r_off = get_pix_offset (val, bpp);
gst_structure_get_int (structure, "green_mask", &val);
filter->g_off = get_pix_offset (val, bpp);
gst_structure_get_int (structure, "blue_mask", &val);
filter->b_off = get_pix_offset (val, bpp);
return TRUE;
}
static void
user_endrow_callback (png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
{
GstPngDec *pngdec = NULL;
pngdec = GST_PNGDEC (png_get_io_ptr (png_ptr));
/* FIXME: implement interlaced pictures */
/* If buffer_out doesn't exist, it means buffer_alloc failed, which
* will already have set the return code */
if (GST_IS_BUFFER (pngdec->current_frame->output_buffer)) {
GstVideoFrame frame;
GstBuffer *buffer = pngdec->current_frame->output_buffer;
size_t offset;
gint width;
guint8 *data;
if (!gst_video_frame_map (&frame, &pngdec->output_state->info, buffer,
GST_MAP_WRITE)) {
pngdec->ret = GST_FLOW_ERROR;
return;
}
data = GST_VIDEO_FRAME_COMP_DATA (&frame, 0);
offset = row_num * GST_VIDEO_FRAME_COMP_STRIDE (&frame, 0);
GST_LOG ("got row %u, copying in buffer %p at offset %" G_GSIZE_FORMAT,
(guint) row_num, pngdec->current_frame->output_buffer, offset);
width = GST_ROUND_UP_4 (png_get_rowbytes (pngdec->png, pngdec->info));
memcpy (data + offset, new_row, width);
gst_video_frame_unmap (&frame);
pngdec->ret = GST_FLOW_OK;
}
}
static void
user_info_callback (png_structp png_ptr, png_infop info)
{
GstPngDec *pngdec = NULL;
GstFlowReturn ret = GST_FLOW_OK;
size_t buffer_size;
GstBuffer *buffer = NULL;
pngdec = GST_PNGDEC (png_ptr->io_ptr);
GST_LOG ("info ready");
/* Generate the caps and configure */
ret = gst_pngdec_caps_create_and_set (pngdec);
if (ret != GST_FLOW_OK) {
goto beach;
}
/* Allocate output buffer */
pngdec->rowbytes = png_get_rowbytes (pngdec->png, pngdec->info);
buffer_size = pngdec->height * GST_ROUND_UP_4 (pngdec->rowbytes);
ret =
gst_pad_alloc_buffer_and_set_caps (pngdec->srcpad, GST_BUFFER_OFFSET_NONE,
buffer_size, GST_PAD_CAPS (pngdec->srcpad), &buffer);
if (ret != GST_FLOW_OK) {
goto beach;
}
pngdec->buffer_out = buffer;
beach:
pngdec->ret = ret;
}
static void
gst_jpegenc_resync (GstJpegEnc * jpegenc)
{
gint width, height;
gint i, j;
GST_DEBUG_OBJECT (jpegenc, "resync");
jpegenc->cinfo.image_width = width = jpegenc->width;
jpegenc->cinfo.image_height = height = jpegenc->height;
jpegenc->cinfo.input_components = jpegenc->channels;
GST_DEBUG_OBJECT (jpegenc, "width %d, height %d", width, height);
GST_DEBUG_OBJECT (jpegenc, "format %d", jpegenc->format);
if (gst_video_format_is_rgb (jpegenc->format)) {
GST_DEBUG_OBJECT (jpegenc, "RGB");
jpegenc->cinfo.in_color_space = JCS_RGB;
} else if (gst_video_format_is_gray (jpegenc->format)) {
GST_DEBUG_OBJECT (jpegenc, "gray");
jpegenc->cinfo.in_color_space = JCS_GRAYSCALE;
} else {
GST_DEBUG_OBJECT (jpegenc, "YUV");
jpegenc->cinfo.in_color_space = JCS_YCbCr;
}
/* input buffer size as max output */
jpegenc->bufsize = gst_video_format_get_size (jpegenc->format, width, height);
jpeg_set_defaults (&jpegenc->cinfo);
jpegenc->cinfo.raw_data_in = TRUE;
/* duh, libjpeg maps RGB to YUV ... and don't expect some conversion */
if (jpegenc->cinfo.in_color_space == JCS_RGB)
jpeg_set_colorspace (&jpegenc->cinfo, JCS_RGB);
GST_DEBUG_OBJECT (jpegenc, "h_max_samp=%d, v_max_samp=%d",
jpegenc->h_max_samp, jpegenc->v_max_samp);
/* image dimension info */
for (i = 0; i < jpegenc->channels; i++) {
GST_DEBUG_OBJECT (jpegenc, "comp %i: h_samp=%d, v_samp=%d", i,
jpegenc->h_samp[i], jpegenc->v_samp[i]);
jpegenc->cinfo.comp_info[i].h_samp_factor = jpegenc->h_samp[i];
jpegenc->cinfo.comp_info[i].v_samp_factor = jpegenc->v_samp[i];
jpegenc->line[i] = g_realloc (jpegenc->line[i],
jpegenc->v_max_samp * DCTSIZE * sizeof (char *));
if (!jpegenc->planar) {
for (j = 0; j < jpegenc->v_max_samp * DCTSIZE; j++) {
jpegenc->row[i][j] = g_realloc (jpegenc->row[i][j], width);
jpegenc->line[i][j] = jpegenc->row[i][j];
}
}
}
/* guard against a potential error in gst_jpegenc_term_destination
which occurs iff bufsize % 4 < free_space_remaining */
jpegenc->bufsize = GST_ROUND_UP_4 (jpegenc->bufsize);
jpeg_suppress_tables (&jpegenc->cinfo, TRUE);
GST_DEBUG_OBJECT (jpegenc, "resync done");
}
static void
_evas_video_i420(unsigned char *evas_data, const unsigned char *gst_data, unsigned int w, unsigned int h, unsigned int output_height)
{
const unsigned char **rows;
unsigned int i, j;
unsigned int rh;
unsigned int stride_y, stride_uv;
rh = output_height;
rows = (const unsigned char **)evas_data;
stride_y = GST_ROUND_UP_4(w);
stride_uv = GST_ROUND_UP_8(w) / 2;
for (i = 0; i < rh; i++)
rows[i] = &gst_data[i * stride_y];
for (j = 0; j < (rh / 2); j++, i++)
rows[i] = &gst_data[h * stride_y + j * stride_uv];
for (j = 0; j < (rh / 2); j++, i++)
rows[i] = &gst_data[h * stride_y +
(rh / 2) * stride_uv +
j * stride_uv];
}
static void
paint_setup_Y800 (paintinfo * p, unsigned char *dest)
{
/* untested */
p->yp = dest;
p->ystride = GST_ROUND_UP_4 (p->width);
p->endptr = dest + p->ystride * p->height;
}
static void
paint_setup_IYU2 (paintinfo * p, unsigned char *dest)
{
/* untested */
p->yp = dest + 1;
p->up = dest + 0;
p->vp = dest + 2;
p->ystride = GST_ROUND_UP_4 (p->width * 3);
p->endptr = dest + p->ystride * p->height;
}
static void
paint_setup_Y42B (paintinfo * p, unsigned char *dest)
{
p->yp = dest;
p->ystride = GST_ROUND_UP_4 (p->width);
p->up = p->yp + p->ystride * p->height;
p->ustride = GST_ROUND_UP_8 (p->width) / 2;
p->vp = p->up + p->ustride * p->height;
p->vstride = GST_ROUND_UP_8 (p->width) / 2;
p->endptr = p->vp + p->vstride * p->height;
}
static GstFlowReturn
mxf_up_write_func (GstBuffer * buffer, GstCaps * caps, gpointer mapping_data,
GstAdapter * adapter, GstBuffer ** outbuf, gboolean flush)
{
MXFUPMappingData *data = mapping_data;
if (!buffer)
return GST_FLOW_OK;
if (GST_BUFFER_SIZE (buffer) !=
GST_ROUND_UP_4 (data->bpp * data->width) * data->height) {
GST_ERROR ("Invalid buffer size");
return GST_FLOW_ERROR;
}
if (data->bpp != 4
|| GST_ROUND_UP_4 (data->width * data->bpp) != data->width * data->bpp) {
guint y;
GstBuffer *ret;
guint8 *indata, *outdata;
ret = gst_buffer_new_and_alloc (data->width * data->bpp * data->height);
indata = GST_BUFFER_DATA (buffer);
outdata = GST_BUFFER_DATA (ret);
for (y = 0; y < data->height; y++) {
memcpy (outdata, indata, data->width * data->bpp);
indata += GST_ROUND_UP_4 (data->width * data->bpp);
outdata += data->width * data->bpp;
}
gst_buffer_unref (buffer);
*outbuf = ret;
} else {
*outbuf = buffer;
}
return GST_FLOW_OK;
}
static void
_evas_video_yuy2(unsigned char *evas_data, const unsigned char *gst_data, unsigned int w, unsigned int h __UNUSED__, unsigned int output_height)
{
const unsigned char **rows;
unsigned int i;
unsigned int stride;
rows = (const unsigned char **)evas_data;
stride = GST_ROUND_UP_4(w * 2);
for (i = 0; i < output_height; i++)
rows[i] = &gst_data[i * stride];
}
static gboolean
gst_pngenc_setcaps (GstPad * pad, GstCaps * caps)
{
GstPngEnc *pngenc;
const GValue *fps;
GstStructure *structure;
GstCaps *pcaps;
gboolean ret = TRUE;
pngenc = GST_PNGENC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &pngenc->width);
gst_structure_get_int (structure, "height", &pngenc->height);
fps = gst_structure_get_value (structure, "framerate");
gst_structure_get_int (structure, "bpp", &pngenc->bpp);
if (pngenc->bpp == 32)
pngenc->stride = pngenc->width * 4;
else if (pngenc->bpp == 8)
pngenc->stride = GST_ROUND_UP_4 (pngenc->width);
else
pngenc->stride = GST_ROUND_UP_4 (pngenc->width * 3);
pcaps = gst_caps_new_simple ("image/png",
"width", G_TYPE_INT, pngenc->width,
"height", G_TYPE_INT, pngenc->height, NULL);
structure = gst_caps_get_structure (pcaps, 0);
gst_structure_set_value (structure, "framerate", fps);
ret = gst_pad_set_caps (pngenc->srcpad, pcaps);
gst_caps_unref (pcaps);
gst_object_unref (pngenc);
return ret;
}
static void
paint_setup_YVU9 (paintinfo * p, unsigned char *dest)
{
int h = GST_ROUND_UP_4 (p->height);
p->yp = dest;
p->ystride = GST_ROUND_UP_4 (p->width);
p->vp = p->yp + p->ystride * GST_ROUND_UP_4 (p->height);
p->vstride = GST_ROUND_UP_4 (p->ystride / 4);
p->up = p->vp + p->vstride * GST_ROUND_UP_4 (h / 4);
p->ustride = GST_ROUND_UP_4 (p->ystride / 4);
p->endptr = p->up + p->ustride * GST_ROUND_UP_4 (h / 4);
}
void MediaPlayer::drawVideoFrame(QPainter &p, const QRect &rect)
{
QMutexLocker m( &m_lastVideoSampleMutex );
if ( !m_lastVideoSample )
return;
// get the snapshot buffer format now. We set the caps on the appsink so
// that it can only be an rgb buffer.
GstCaps *caps = gst_sample_get_caps( m_lastVideoSample );
if ( !caps )
{
reportError( "could not get caps for the new video sample" );
return;
}
GstStructure * structure = gst_caps_get_structure( caps, 0 );
// We need to get the final caps on the buffer to get the size
int width = 0;
int height = 0;
gst_structure_get_int( structure, "width", &width );
gst_structure_get_int( structure, "height", &height );
if ( !width || !height )
{
reportError( "could not get video height and width" );
return;
}
// Create pixmap from buffer and save, gstreamer video buffers have a stride that
// is rounded up to the nearest multiple of 4
GstBuffer *buffer = gst_sample_get_buffer( m_lastVideoSample );
GstMapInfo map;
if ( !gst_buffer_map( buffer, &map, GST_MAP_READ ) )
{
reportError( "could not map video buffer" );
return;
}
p.drawImage( rect, QImage( map.data, width, height, GST_ROUND_UP_4 (width * 4), QImage::Format_RGB32 ), QRect( 0, 0, width, height ) );
// And clean up
gst_buffer_unmap( buffer, &map );
}
static void
gst_audio_cheb_band_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAudioChebBand *filter = GST_AUDIO_CHEB_BAND (object);
switch (prop_id) {
case PROP_MODE:
g_mutex_lock (filter->lock);
filter->mode = g_value_get_enum (value);
generate_coefficients (filter);
g_mutex_unlock (filter->lock);
break;
case PROP_TYPE:
g_mutex_lock (filter->lock);
filter->type = g_value_get_int (value);
generate_coefficients (filter);
g_mutex_unlock (filter->lock);
break;
case PROP_LOWER_FREQUENCY:
g_mutex_lock (filter->lock);
filter->lower_frequency = g_value_get_float (value);
generate_coefficients (filter);
g_mutex_unlock (filter->lock);
break;
case PROP_UPPER_FREQUENCY:
g_mutex_lock (filter->lock);
filter->upper_frequency = g_value_get_float (value);
generate_coefficients (filter);
g_mutex_unlock (filter->lock);
break;
case PROP_RIPPLE:
g_mutex_lock (filter->lock);
filter->ripple = g_value_get_float (value);
generate_coefficients (filter);
g_mutex_unlock (filter->lock);
break;
case PROP_POLES:
g_mutex_lock (filter->lock);
filter->poles = GST_ROUND_UP_4 (g_value_get_int (value));
generate_coefficients (filter);
g_mutex_unlock (filter->lock);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
clutter_gst_ayuv_upload (ClutterGstVideoSink *sink,
GstBuffer *buffer)
{
ClutterGstVideoSinkPrivate *priv= sink->priv;
clutter_texture_set_from_rgb_data (priv->texture,
GST_BUFFER_DATA (buffer),
TRUE,
priv->width,
priv->height,
GST_ROUND_UP_4 (4 * priv->width),
4,
0,
NULL);
}
static void
gst_jpegenc_term_destination (j_compress_ptr cinfo)
{
GstJpegEnc *jpegenc = (GstJpegEnc *) (cinfo->client_data);
GST_DEBUG_OBJECT (jpegenc, "gst_jpegenc_chain: term_source");
/* Trim the buffer size and push it. */
GST_BUFFER_SIZE (jpegenc->output_buffer) =
GST_ROUND_UP_4 (GST_BUFFER_SIZE (jpegenc->output_buffer) -
jpegenc->jdest.free_in_buffer);
g_signal_emit (G_OBJECT (jpegenc), gst_jpegenc_signals[FRAME_ENCODED], 0);
jpegenc->last_ret = gst_pad_push (jpegenc->srcpad, jpegenc->output_buffer);
jpegenc->output_buffer = NULL;
}
static gboolean
gst_visual_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstVisual *visual = GST_VISUAL (gst_pad_get_parent (pad));
GstStructure *structure;
gint depth, pitch;
structure = gst_caps_get_structure (caps, 0);
GST_DEBUG_OBJECT (visual, "src pad got caps %" GST_PTR_FORMAT, caps);
if (!gst_structure_get_int (structure, "width", &visual->width))
goto error;
if (!gst_structure_get_int (structure, "height", &visual->height))
goto error;
if (!gst_structure_get_int (structure, "bpp", &depth))
goto error;
if (!gst_structure_get_fraction (structure, "framerate", &visual->fps_n,
&visual->fps_d))
goto error;
visual_video_set_depth (visual->video,
visual_video_depth_enum_from_value (depth));
visual_video_set_dimension (visual->video, visual->width, visual->height);
pitch = GST_ROUND_UP_4 (visual->width * visual->video->bpp);
visual_video_set_pitch (visual->video, pitch);
visual_actor_video_negotiate (visual->actor, 0, FALSE, FALSE);
/* precalc some values */
visual->outsize = visual->video->height * pitch;
visual->spf =
gst_util_uint64_scale_int (visual->rate, visual->fps_d, visual->fps_n);
visual->duration =
gst_util_uint64_scale_int (GST_SECOND, visual->fps_d, visual->fps_n);
gst_object_unref (visual);
return TRUE;
/* ERRORS */
error:
{
GST_DEBUG_OBJECT (visual, "error parsing caps");
gst_object_unref (visual);
return FALSE;
}
}
static void
clutter_gst_rgb32_upload (ClutterGstVideoSink *sink,
GstBuffer *buffer)
{
ClutterGstVideoSinkPrivate *priv= sink->priv;
clutter_texture_set_from_rgb_data (priv->texture,
GST_BUFFER_DATA (buffer),
TRUE,
priv->width,
priv->height,
GST_ROUND_UP_4 (4 * priv->width),
4,
priv->bgr ?
CLUTTER_TEXTURE_RGB_FLAG_BGR : 0,
NULL);
}
/**
* gst_video_format_get_row_stride:
* @format: a #GstVideoFormat
* @component: the component index
* @width: the width of video
*
* Calculates the row stride (number of bytes from one row of pixels to
* the next) for the video component with an index of @component. For
* YUV video, Y, U, and V have component indices of 0, 1, and 2,
* respectively. For RGB video, R, G, and B have component indicies of
* 0, 1, and 2, respectively. Alpha channels, if present, have a component
* index of 3. The @width parameter always represents the width of the
* video, not the component.
*
* Since: 0.10.16
*
* Returns: row stride of component @component
*/
int
gst_video_format_get_row_stride (GstVideoFormat format, int component,
int width)
{
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
g_return_val_if_fail (component >= 0 && component <= 3, 0);
g_return_val_if_fail (width > 0, 0);
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
}
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_ROUND_UP_4 (width * 2);
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
return width * 4;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return GST_ROUND_UP_4 (width * 3);
case GST_VIDEO_FORMAT_Y41B:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_8 (width) / 4;
}
case GST_VIDEO_FORMAT_Y42B:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_8 (width) / 2;
}
default:
return 0;
}
}
EXPORT_C
#endif
int
gst_video_format_get_row_stride (GstVideoFormat format, int component,
int width)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
}
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_ROUND_UP_4 (width * 2);
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
return width * 4;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return GST_ROUND_UP_4 (width * 3);
case GST_VIDEO_FORMAT_Y41B:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_8 (width) / 4;
}
case GST_VIDEO_FORMAT_Y42B:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_8 (width) / 2;
}
default:
return 0;
}
}
static void
user_endrow_callback (png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
{
GstPngDec *pngdec = NULL;
pngdec = GST_PNGDEC (png_ptr->io_ptr);
/* FIXME: implement interlaced pictures */
/* If buffer_out doesn't exist, it means buffer_alloc failed, which
* will already have set the return code */
if (GST_IS_BUFFER (pngdec->buffer_out)) {
size_t offset = row_num * GST_ROUND_UP_4 (pngdec->rowbytes);
GST_LOG ("got row %u, copying in buffer %p at offset %" G_GSIZE_FORMAT,
(guint) row_num, pngdec->buffer_out, offset);
memcpy (GST_BUFFER_DATA (pngdec->buffer_out) + offset, new_row,
pngdec->rowbytes);
pngdec->ret = GST_FLOW_OK;
}
}
GstMemory *
my_vidmem_alloc (guint format, guint width, guint height)
{
MyVidmem *mem;
gsize maxsize;
GST_DEBUG ("alloc frame format %u %ux%u", format, width, height);
maxsize = (GST_ROUND_UP_4 (width) * height);
mem = g_slice_new (MyVidmem);
gst_memory_init (GST_MEMORY_CAST (mem), 0, _my_allocator, NULL,
maxsize, 31, 0, maxsize);
mem->format = format;
mem->width = width;
mem->height = height;
mem->data = NULL;
return (GstMemory *) mem;
}
/**
* gst_video_format_get_size:
* @format: a #GstVideoFormat
* @width: the width of video
* @height: the height of video
*
* Calculates the total number of bytes in the raw video format. This
* number should be used when allocating a buffer for raw video.
*
* Since: 0.10.16
*
* Returns: size (in bytes) of raw video format
*/
int
gst_video_format_get_size (GstVideoFormat format, int width, int height)
{
int size;
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
g_return_val_if_fail (width > 0 && height > 0, 0);
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
size = GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
size += GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2) * 2;
return size;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_ROUND_UP_4 (width * 2) * height;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
return width * 4 * height;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return GST_ROUND_UP_4 (width * 3) * height;
case GST_VIDEO_FORMAT_Y41B:
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP8(w)/4)*h */
return (GST_ROUND_UP_4 (width) + (GST_ROUND_UP_8 (width) / 2)) * height;
case GST_VIDEO_FORMAT_Y42B:
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h: */
return (GST_ROUND_UP_4 (width) + GST_ROUND_UP_8 (width)) * height;
default:
return 0;
}
}
void QGstreamerGLTextureRenderer::setFallbackBuffer(GstBuffer *buffer)
{
#ifdef GL_TEXTURE_SINK_DEBUG
qDebug() << Q_FUNC_INFO << buffer;
#endif
m_fallbackImage = QImage();
if (!buffer)
return;
GstCaps *caps = GST_BUFFER_CAPS(buffer);
const uchar *data = GST_BUFFER_DATA(buffer);
if (!(caps && data))
return;
const GstStructure *structure = gst_caps_get_structure(caps, 0);
guint32 fourcc;
gst_structure_get_fourcc(structure, "format", &fourcc);
if (fourcc != GST_MAKE_FOURCC('Y', 'U', 'Y', '2') &&
fourcc != GST_MAKE_FOURCC('U', 'Y', 'V', 'Y'))
return;
QSize resolution = QGstUtils::capsResolution(caps);
m_fallbackImage = QImage(resolution, QImage::Format_RGB32);
for (int y=0; y<resolution.height(); y++) {
const uchar *src = data + y*GST_ROUND_UP_4(resolution.width())*2;
quint32 *dst = (quint32 *)m_fallbackImage.scanLine(y);
int y1, y2;
int u, v;
int r1, g1, b1;
int r2, g2, b2;
int r, g, b;
for (int x=0; x<resolution.width(); x+=2) {
if (fourcc == GST_MAKE_FOURCC('Y', 'U', 'Y', '2')) {
y1 = *src; src++;
u = *src; src++;
y2 = *src; src++;
v = *src; src++;
} else {
u = *src; src++;
y1 = *src; src++;
v = *src; src++;
y2 = *src; src++;
}
y1 = 298*y1/256;
y2 = 298*y2/256;
r = 408*v/256 - 223;
g = - 100*u/256 - 208*v/256 + 136;
b = 516*u/256 - 276;
r1 = qBound(0, y1 + r, 255);
g1 = qBound(0, y1 + g, 255);
b1 = qBound(0, y1 + b, 255);
*dst = qRgb(r1, g1, b1); dst++;
r2 = qBound(0, y2 + r, 255);
g2 = qBound(0, y2 + g, 255);
b2 = qBound(0, y2 + b, 255);
*dst = qRgb(r2, g2, b2); dst++;
}
}
}
