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;
}
/**
* 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;
}
}
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];
}
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;
}
static void
gst_base_audio_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
GstStructure *s;
gint width, depth;
s = gst_caps_get_structure (caps, 0);
/* fields for all formats */
gst_structure_fixate_field_nearest_int (s, "rate", 44100);
gst_structure_fixate_field_nearest_int (s, "channels", 2);
gst_structure_fixate_field_nearest_int (s, "width", 16);
/* fields for int */
if (gst_structure_has_field (s, "depth")) {
gst_structure_get_int (s, "width", &width);
/* round width to nearest multiple of 8 for the depth */
depth = GST_ROUND_UP_8 (width);
gst_structure_fixate_field_nearest_int (s, "depth", depth);
}
if (gst_structure_has_field (s, "signed"))
gst_structure_fixate_field_boolean (s, "signed", TRUE);
if (gst_structure_has_field (s, "endianness"))
gst_structure_fixate_field_nearest_int (s, "endianness", G_BYTE_ORDER);
}
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;
}
}
/**
* gst_video_format_get_component_width:
* @format: a #GstVideoFormat
* @component: the component index
* @width: the width of video
*
* Calculates the width of the component. See
* @gst_video_format_get_row_stride for a description
* of the component index.
*
* Since: 0.10.16
*
* Returns: width of component @component
*/
int
gst_video_format_get_component_width (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:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_2 (width) / 2;
}
case GST_VIDEO_FORMAT_Y41B: /* CHECKME: component_width for Y41B */
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_8 (width) / 4;
}
case GST_VIDEO_FORMAT_Y42B: /* CHECKME: component_width for Y42B */
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_8 (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:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return width;
default:
return 0;
}
}
EXPORT_C
#endif
int
gst_video_format_get_component_width (GstVideoFormat format, int component,
int width)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_2 (width) / 2;
}
case GST_VIDEO_FORMAT_Y41B: /* CHECKME: component_width for Y41B */
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_8 (width) / 4;
}
case GST_VIDEO_FORMAT_Y42B: /* CHECKME: component_width for Y42B */
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_8 (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:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return width;
default:
return 0;
}
}
void
gst_gl_test_src_checkers8 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
{
#if 0
int x, y;
paintinfo pi = { NULL, };
paintinfo *p = π
struct fourcc_list_struct *fourcc;
p->width = w;
p->height = h;
fourcc = v->fourcc;
if (fourcc == NULL)
return;
fourcc->paint_setup (p, dest);
p->paint_hline = fourcc->paint_hline;
p->color = vts_colors + COLOR_GREEN;
for (y = 0; y < h; y++) {
p->paint_hline (p, 0, y, w);
}
for (y = 0; y < h; y += 8) {
for (x = ((GST_ROUND_UP_8 (y) % 16) == 0) ? 0 : 8; x < w; x += 16) {
guint len = (x < (w - 7)) ? 8 : (w - x);
p->color = vts_colors + COLOR_RED;
p->paint_hline (p, x, y + 0, len);
if (G_LIKELY ((y + 1) < h)) {
p->paint_hline (p, x, y + 1, len);
if (G_LIKELY ((y + 2) < h)) {
p->paint_hline (p, x, y + 2, len);
if (G_LIKELY ((y + 3) < h)) {
p->paint_hline (p, x, y + 3, len);
if (G_LIKELY ((y + 4) < h)) {
p->paint_hline (p, x, y + 4, len);
if (G_LIKELY ((y + 5) < h)) {
p->paint_hline (p, x, y + 5, len);
if (G_LIKELY ((y + 6) < h)) {
p->paint_hline (p, x, y + 6, len);
if (G_LIKELY ((y + 7) < h)) {
p->paint_hline (p, x, y + 7, len);
}
}
}
}
}
}
}
}
}
#endif
}
/**
* 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;
}
}
static gboolean
gst_aiff_parse_parse_comm (GstAiffParse * aiff, GstBuffer * buf)
{
guint8 *data;
int size;
if (aiff->is_aifc)
size = 22;
else
size = 18;
if (GST_BUFFER_SIZE (buf) < size) {
GST_WARNING_OBJECT (aiff, "COMM chunk too short, cannot parse header");
return FALSE;
}
data = GST_BUFFER_DATA (buf);
aiff->channels = GST_READ_UINT16_BE (data);
aiff->total_frames = GST_READ_UINT32_BE (data + 2);
aiff->depth = GST_READ_UINT16_BE (data + 6);
aiff->width = GST_ROUND_UP_8 (aiff->depth);
aiff->rate = (int) gst_aiff_parse_read_IEEE80 (data + 8);
if (aiff->is_aifc) {
/* We only support the 'trivial' uncompressed AIFC, but it can be
* either big or little endian */
if (GST_READ_UINT32_LE (data + 18) == GST_MAKE_FOURCC ('N', 'O', 'N', 'E'))
aiff->endianness = G_BIG_ENDIAN;
else if (GST_READ_UINT32_LE (data + 18) ==
GST_MAKE_FOURCC ('s', 'o', 'w', 't'))
aiff->endianness = G_LITTLE_ENDIAN;
else {
GST_WARNING_OBJECT (aiff, "Unsupported compression in AIFC "
"file: %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (GST_READ_UINT32_LE (data + 18)));
return FALSE;
}
} else
aiff->endianness = G_BIG_ENDIAN;
return TRUE;
}
static void
gst_wavpack_enc_set_wp_config (GstWavpackEnc * enc)
{
enc->wp_config = g_new0 (WavpackConfig, 1);
/* set general stream informations in the WavpackConfig */
enc->wp_config->bytes_per_sample = GST_ROUND_UP_8 (enc->depth) / 8;
enc->wp_config->bits_per_sample = enc->depth;
enc->wp_config->num_channels = enc->channels;
enc->wp_config->channel_mask = enc->channel_mask;
enc->wp_config->sample_rate = enc->samplerate;
/*
* Set parameters in WavpackConfig
*/
/* Encoding mode */
switch (enc->mode) {
#if 0
case GST_WAVPACK_ENC_MODE_VERY_FAST:
enc->wp_config->flags |= CONFIG_VERY_FAST_FLAG;
enc->wp_config->flags |= CONFIG_FAST_FLAG;
break;
#endif
case GST_WAVPACK_ENC_MODE_FAST:
enc->wp_config->flags |= CONFIG_FAST_FLAG;
break;
case GST_WAVPACK_ENC_MODE_DEFAULT:
break;
case GST_WAVPACK_ENC_MODE_HIGH:
enc->wp_config->flags |= CONFIG_HIGH_FLAG;
break;
#ifndef WAVPACK_OLD_API
case GST_WAVPACK_ENC_MODE_VERY_HIGH:
enc->wp_config->flags |= CONFIG_HIGH_FLAG;
enc->wp_config->flags |= CONFIG_VERY_HIGH_FLAG;
break;
#endif
}
/* Bitrate, enables lossy mode */
if (enc->bitrate) {
enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
enc->wp_config->flags |= CONFIG_BITRATE_KBPS;
enc->wp_config->bitrate = enc->bitrate / 1000.0;
} else if (enc->bps) {
enc->wp_config->flags |= CONFIG_HYBRID_FLAG;
enc->wp_config->bitrate = enc->bps;
}
/* Correction Mode, only in lossy mode */
if (enc->wp_config->flags & CONFIG_HYBRID_FLAG) {
if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
GstCaps *caps = gst_caps_new_simple ("audio/x-wavpack-correction",
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
enc->wvcsrcpad =
gst_pad_new_from_static_template (&wvcsrc_factory, "wvcsrc");
/* try to add correction src pad, don't set correction mode on failure */
GST_DEBUG_OBJECT (enc, "Adding correction pad with caps %"
GST_PTR_FORMAT, caps);
if (!gst_pad_set_caps (enc->wvcsrcpad, caps)) {
enc->correction_mode = 0;
GST_WARNING_OBJECT (enc, "setting correction caps failed");
} else {
gst_pad_use_fixed_caps (enc->wvcsrcpad);
gst_pad_set_active (enc->wvcsrcpad, TRUE);
gst_element_add_pad (GST_ELEMENT (enc), enc->wvcsrcpad);
enc->wp_config->flags |= CONFIG_CREATE_WVC;
if (enc->correction_mode == GST_WAVPACK_CORRECTION_MODE_OPTIMIZED) {
enc->wp_config->flags |= CONFIG_OPTIMIZE_WVC;
}
}
gst_caps_unref (caps);
}
} else {
if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) {
enc->correction_mode = 0;
GST_WARNING_OBJECT (enc, "setting correction mode only has "
"any effect if a bitrate is provided.");
}
}
gst_element_no_more_pads (GST_ELEMENT (enc));
/* MD5, setup MD5 context */
if ((enc->md5) && !(enc->md5_context)) {
enc->wp_config->flags |= CONFIG_MD5_CHECKSUM;
enc->md5_context = g_checksum_new (G_CHECKSUM_MD5);
}
/* Extra encode processing */
if (enc->extra_processing) {
enc->wp_config->flags |= CONFIG_EXTRA_MODE;
enc->wp_config->xmode = enc->extra_processing;
}
/* Joint stereo mode */
switch (enc->joint_stereo_mode) {
case GST_WAVPACK_JS_MODE_AUTO:
break;
case GST_WAVPACK_JS_MODE_LEFT_RIGHT:
enc->wp_config->flags |= CONFIG_JOINT_OVERRIDE;
enc->wp_config->flags &= ~CONFIG_JOINT_STEREO;
break;
case GST_WAVPACK_JS_MODE_MID_SIDE:
enc->wp_config->flags |= (CONFIG_JOINT_OVERRIDE | CONFIG_JOINT_STEREO);
break;
}
}
static int
fill_planes (GstVideoInfo * info)
{
gsize width, height, cr_h;
width = (gsize) info->width;
height = (gsize) info->height;
switch (info->finfo->format) {
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_YVYU:
case GST_VIDEO_FORMAT_UYVY:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_r210:
info->stride[0] = width * 4;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_BGR16:
case GST_VIDEO_FORMAT_RGB15:
case GST_VIDEO_FORMAT_BGR15:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_v308:
info->stride[0] = GST_ROUND_UP_4 (width * 3);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_v210:
info->stride[0] = ((width + 47) / 48) * 128;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_v216:
info->stride[0] = GST_ROUND_UP_8 (width * 4);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_GRAY8:
info->stride[0] = GST_ROUND_UP_4 (width);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_UYVP:
info->stride[0] = GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_RGB8P:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = 4;
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->size = info->offset[1] + (4 * 256);
break;
case GST_VIDEO_FORMAT_IYU1:
info->stride[0] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
GST_ROUND_UP_4 (width) / 2);
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_ARGB64:
case GST_VIDEO_FORMAT_AYUV64:
info->stride[0] = width * 8;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12: /* same as I420, but plane 1+2 swapped */
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
cr_h = GST_ROUND_UP_2 (height) / 2;
if (GST_VIDEO_INFO_IS_INTERLACED (info))
cr_h = GST_ROUND_UP_2 (cr_h);
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
info->size = info->offset[2] + info->stride[2] * cr_h;
break;
case GST_VIDEO_FORMAT_Y41B:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_16 (width) / 4;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * height;
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP16(w)/4)*h */
info->size = (info->stride[0] + (GST_ROUND_UP_16 (width) / 2)) * height;
break;
case GST_VIDEO_FORMAT_Y42B:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_8 (width) / 2;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * height;
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h */
info->size = (info->stride[0] + GST_ROUND_UP_8 (width)) * height;
break;
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_GBR:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->stride[2] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] * 2;
info->size = info->stride[0] * height * 3;
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
cr_h = GST_ROUND_UP_2 (height) / 2;
if (GST_VIDEO_INFO_IS_INTERLACED (info))
cr_h = GST_ROUND_UP_2 (cr_h);
info->size = info->offset[1] + info->stride[0] * cr_h;
break;
case GST_VIDEO_FORMAT_NV16:
case GST_VIDEO_FORMAT_NV61:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->size = info->stride[0] * height * 2;
break;
case GST_VIDEO_FORMAT_NV24:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->size = info->stride[0] * height + info->stride[1] * height;
break;
case GST_VIDEO_FORMAT_A420:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->stride[3] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
cr_h = GST_ROUND_UP_2 (height) / 2;
if (GST_VIDEO_INFO_IS_INTERLACED (info))
cr_h = GST_ROUND_UP_2 (cr_h);
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
info->offset[3] = info->offset[2] + info->stride[2] * cr_h;
info->size = info->offset[3] + info->stride[0] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_YUV9:
case GST_VIDEO_FORMAT_YVU9:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
cr_h = GST_ROUND_UP_4 (height) / 4;
if (GST_VIDEO_INFO_IS_INTERLACED (info))
cr_h = GST_ROUND_UP_2 (cr_h);
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
info->size = info->offset[2] + info->stride[2] * cr_h;
break;
case GST_VIDEO_FORMAT_I420_10LE:
case GST_VIDEO_FORMAT_I420_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = GST_ROUND_UP_4 (width);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
cr_h = GST_ROUND_UP_2 (height) / 2;
if (GST_VIDEO_INFO_IS_INTERLACED (info))
cr_h = GST_ROUND_UP_2 (cr_h);
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
info->size = info->offset[2] + info->stride[2] * cr_h;
break;
case GST_VIDEO_FORMAT_I422_10LE:
case GST_VIDEO_FORMAT_I422_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = GST_ROUND_UP_4 (width);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * GST_ROUND_UP_2 (height);
info->size = info->offset[2] + info->stride[2] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_Y444_10LE:
case GST_VIDEO_FORMAT_Y444_10BE:
case GST_VIDEO_FORMAT_GBR_10LE:
case GST_VIDEO_FORMAT_GBR_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = info->stride[0];
info->stride[2] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] * 2;
info->size = info->stride[0] * height * 3;
break;
case GST_VIDEO_FORMAT_NV12_64Z32:
info->stride[0] =
GST_VIDEO_TILE_MAKE_STRIDE (GST_ROUND_UP_128 (width) / 64,
GST_ROUND_UP_32 (height) / 32);
info->stride[1] =
GST_VIDEO_TILE_MAKE_STRIDE (GST_ROUND_UP_128 (width) / 64,
GST_ROUND_UP_64 (height) / 64);
info->offset[0] = 0;
info->offset[1] = GST_ROUND_UP_128 (width) * GST_ROUND_UP_32 (height);
info->size = info->offset[1] +
GST_ROUND_UP_128 (width) * GST_ROUND_UP_64 (height) / 2;
break;
case GST_VIDEO_FORMAT_A420_10LE:
case GST_VIDEO_FORMAT_A420_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = GST_ROUND_UP_4 (width);
info->stride[2] = info->stride[1];
info->stride[3] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
cr_h = GST_ROUND_UP_2 (height) / 2;
if (GST_VIDEO_INFO_IS_INTERLACED (info))
cr_h = GST_ROUND_UP_2 (cr_h);
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
info->offset[3] = info->offset[2] + info->stride[2] * cr_h;
info->size = info->offset[3] + info->stride[0] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_A422_10LE:
case GST_VIDEO_FORMAT_A422_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = GST_ROUND_UP_4 (width);
info->stride[2] = info->stride[1];
info->stride[3] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * GST_ROUND_UP_2 (height);
info->offset[3] =
info->offset[2] + info->stride[2] * GST_ROUND_UP_2 (height);
info->size = info->offset[3] + info->stride[0] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_A444_10LE:
case GST_VIDEO_FORMAT_A444_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = info->stride[0];
info->stride[2] = info->stride[0];
info->stride[3] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] * 2;
info->offset[3] = info->offset[1] * 3;
info->size = info->stride[0] * height * 4;
break;
case GST_VIDEO_FORMAT_ENCODED:
break;
case GST_VIDEO_FORMAT_UNKNOWN:
GST_ERROR ("invalid format");
g_warning ("invalid format");
break;
}
return 0;
}
static GstFlowReturn
theora_enc_chain (GstPad * pad, GstBuffer * buffer)
{
GstTheoraEnc *enc;
ogg_packet op;
GstClockTime timestamp, duration, running_time;
GstFlowReturn ret;
enc = GST_THEORA_ENC (GST_PAD_PARENT (pad));
/* we keep track of two timelines.
* - The timestamps from the incomming buffers, which we copy to the outgoing
* encoded buffers as-is. We need to do this as we simply forward the
* newsegment events.
* - The running_time of the buffers, which we use to construct the granulepos
* in the packets.
*/
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
running_time =
gst_segment_to_running_time (&enc->segment, GST_FORMAT_TIME, timestamp);
/* make sure we copy the discont flag to the next outgoing buffer when it's
* set on the incomming buffer */
if (GST_BUFFER_IS_DISCONT (buffer)) {
enc->next_discont = TRUE;
}
if (enc->packetno == 0) {
/* no packets written yet, setup headers */
GstCaps *caps;
GstBuffer *buf1, *buf2, *buf3;
enc->granulepos_offset = 0;
enc->timestamp_offset = 0;
GST_DEBUG_OBJECT (enc, "output headers");
/* Theora streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libtheora one at a time;
libtheora handles the additional Ogg bitstream constraints */
/* first packet will get its own page automatically */
if (theora_encode_header (&enc->state, &op) != 0)
goto encoder_disabled;
ret =
theora_buffer_from_packet (enc, &op, GST_CLOCK_TIME_NONE,
GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE, &buf1);
if (ret != GST_FLOW_OK) {
goto header_buffer_alloc;
}
/* create the remaining theora headers */
theora_comment_clear (&enc->comment);
theora_comment_init (&enc->comment);
if (theora_encode_comment (&enc->comment, &op) != 0)
goto encoder_disabled;
ret =
theora_buffer_from_packet (enc, &op, GST_CLOCK_TIME_NONE,
GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE, &buf2);
/* Theora expects us to put this packet buffer into an ogg page,
* in which case it becomes the ogg library's responsibility to
* free it. Since we're copying and outputting a gst_buffer,
* we need to free it ourselves. */
if (op.packet)
free (op.packet);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (buf1);
goto header_buffer_alloc;
}
if (theora_encode_tables (&enc->state, &op) != 0)
goto encoder_disabled;
ret =
theora_buffer_from_packet (enc, &op, GST_CLOCK_TIME_NONE,
GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE, &buf3);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (buf1);
gst_buffer_unref (buf2);
goto header_buffer_alloc;
}
/* mark buffers and put on caps */
caps = gst_pad_get_caps (enc->srcpad);
caps = theora_set_header_on_caps (caps, buf1, buf2, buf3);
GST_DEBUG ("here are the caps: %" GST_PTR_FORMAT, caps);
gst_pad_set_caps (enc->srcpad, caps);
gst_buffer_set_caps (buf1, caps);
gst_buffer_set_caps (buf2, caps);
gst_buffer_set_caps (buf3, caps);
gst_caps_unref (caps);
/* push out the header buffers */
if ((ret = theora_push_buffer (enc, buf1)) != GST_FLOW_OK) {
gst_buffer_unref (buf2);
gst_buffer_unref (buf3);
goto header_push;
}
if ((ret = theora_push_buffer (enc, buf2)) != GST_FLOW_OK) {
gst_buffer_unref (buf3);
goto header_push;
}
if ((ret = theora_push_buffer (enc, buf3)) != GST_FLOW_OK) {
goto header_push;
}
enc->granulepos_offset =
gst_util_uint64_scale (running_time, enc->fps_n,
GST_SECOND * enc->fps_d);
enc->timestamp_offset = running_time;
enc->next_ts = 0;
}
{
yuv_buffer yuv;
gint res;
gint y_size;
guint8 *pixels;
yuv.y_width = enc->info_width;
yuv.y_height = enc->info_height;
yuv.y_stride = enc->info_width;
yuv.uv_width = enc->info_width / 2;
yuv.uv_height = enc->info_height / 2;
yuv.uv_stride = yuv.uv_width;
y_size = enc->info_width * enc->info_height;
if (enc->width == enc->info_width && enc->height == enc->info_height) {
GST_LOG_OBJECT (enc, "no cropping/conversion needed");
/* easy case, no cropping/conversion needed */
pixels = GST_BUFFER_DATA (buffer);
yuv.y = pixels;
yuv.u = yuv.y + y_size;
yuv.v = yuv.u + y_size / 4;
} else {
GstBuffer *newbuf;
gint i;
guchar *dest_y, *src_y;
guchar *dest_u, *src_u;
guchar *dest_v, *src_v;
gint src_y_stride, src_uv_stride;
gint dst_y_stride, dst_uv_stride;
gint width, height;
gint cwidth, cheight;
gint offset_x, right_x, right_border;
GST_LOG_OBJECT (enc, "cropping/conversion needed for strides");
/* source width/height */
width = enc->width;
height = enc->height;
/* soucre chroma width/height */
cwidth = width / 2;
cheight = height / 2;
/* source strides as defined in videotestsrc */
src_y_stride = GST_ROUND_UP_4 (width);
src_uv_stride = GST_ROUND_UP_8 (width) / 2;
/* destination strides from the real picture width */
dst_y_stride = enc->info_width;
dst_uv_stride = enc->info_width / 2;
newbuf = gst_buffer_new_and_alloc (y_size * 3 / 2);
if (!newbuf) {
ret = GST_FLOW_ERROR;
goto no_buffer;
}
GST_BUFFER_OFFSET (newbuf) = GST_BUFFER_OFFSET_NONE;
gst_buffer_set_caps (newbuf, GST_PAD_CAPS (enc->srcpad));
dest_y = yuv.y = GST_BUFFER_DATA (newbuf);
dest_u = yuv.u = yuv.y + y_size;
dest_v = yuv.v = yuv.u + y_size / 4;
src_y = GST_BUFFER_DATA (buffer);
src_u = src_y + src_y_stride * GST_ROUND_UP_2 (height);
src_v = src_u + src_uv_stride * GST_ROUND_UP_2 (height) / 2;
if (enc->border != BORDER_NONE) {
/* fill top border */
for (i = 0; i < enc->offset_y; i++) {
memset (dest_y, 0, dst_y_stride);
dest_y += dst_y_stride;
}
} else {
dest_y += dst_y_stride * enc->offset_y;
}
offset_x = enc->offset_x;
right_x = width + enc->offset_x;
right_border = dst_y_stride - right_x;
/* copy Y plane */
for (i = 0; i < height; i++) {
memcpy (dest_y + offset_x, src_y, width);
if (enc->border != BORDER_NONE) {
memset (dest_y, 0, offset_x);
memset (dest_y + right_x, 0, right_border);
}
dest_y += dst_y_stride;
src_y += src_y_stride;
}
if (enc->border != BORDER_NONE) {
/* fill bottom border */
for (i = height + enc->offset_y; i < enc->info.height; i++) {
memset (dest_y, 0, dst_y_stride);
dest_y += dst_y_stride;
}
/* fill top border chroma */
for (i = 0; i < enc->offset_y / 2; i++) {
memset (dest_u, 128, dst_uv_stride);
memset (dest_v, 128, dst_uv_stride);
dest_u += dst_uv_stride;
dest_v += dst_uv_stride;
}
} else {
dest_u += dst_uv_stride * enc->offset_y / 2;
dest_v += dst_uv_stride * enc->offset_y / 2;
}
offset_x = enc->offset_x / 2;
right_x = cwidth + offset_x;
right_border = dst_uv_stride - right_x;
/* copy UV planes */
for (i = 0; i < cheight; i++) {
memcpy (dest_v + offset_x, src_v, cwidth);
memcpy (dest_u + offset_x, src_u, cwidth);
if (enc->border != BORDER_NONE) {
memset (dest_u, 128, offset_x);
memset (dest_u + right_x, 128, right_border);
memset (dest_v, 128, offset_x);
memset (dest_v + right_x, 128, right_border);
}
dest_u += dst_uv_stride;
dest_v += dst_uv_stride;
src_u += src_uv_stride;
src_v += src_uv_stride;
}
if (enc->border != BORDER_NONE) {
/* fill bottom border */
for (i = cheight + enc->offset_y / 2; i < enc->info_height / 2; i++) {
memset (dest_u, 128, dst_uv_stride);
memset (dest_v, 128, dst_uv_stride);
dest_u += dst_uv_stride;
dest_v += dst_uv_stride;
}
}
gst_buffer_unref (buffer);
buffer = newbuf;
}
if (theora_enc_is_discontinuous (enc, running_time, duration)) {
theora_enc_reset (enc);
enc->granulepos_offset =
gst_util_uint64_scale (running_time, enc->fps_n,
GST_SECOND * enc->fps_d);
enc->timestamp_offset = running_time;
enc->next_ts = 0;
enc->next_discont = TRUE;
}
res = theora_encode_YUVin (&enc->state, &yuv);
ret = GST_FLOW_OK;
while (theora_encode_packetout (&enc->state, 0, &op)) {
GstClockTime next_time;
next_time = theora_enc_get_ogg_packet_end_time (enc, &op);
ret =
theora_push_packet (enc, &op, timestamp, enc->next_ts,
next_time - enc->next_ts);
enc->next_ts = next_time;
if (ret != GST_FLOW_OK)
goto data_push;
}
gst_buffer_unref (buffer);
}
return ret;
/* ERRORS */
header_buffer_alloc:
{
gst_buffer_unref (buffer);
return ret;
}
header_push:
{
gst_buffer_unref (buffer);
return ret;
}
no_buffer:
{
return ret;
}
data_push:
{
gst_buffer_unref (buffer);
return ret;
}
encoder_disabled:
{
GST_ELEMENT_ERROR (enc, STREAM, ENCODE, (NULL),
("libtheora has been compiled with the encoder disabled"));
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_rtp_vraw_pay_handle_buffer (GstRTPBasePayload * payload, GstBuffer * buffer)
{
GstRtpVRawPay *rtpvrawpay;
GstFlowReturn ret = GST_FLOW_OK;
gfloat packets_per_packline;
guint pgroups_per_packet;
guint packlines_per_list, buffers_per_list;
guint lines_delay; /* after how many packed lines we push out a buffer list */
guint last_line; /* last pack line number we pushed out a buffer list */
guint line, offset;
guint8 *p0, *yp, *up, *vp;
guint ystride, uvstride;
guint xinc, yinc;
guint pgroup;
guint mtu;
guint width, height;
gint field, fields;
GstVideoFormat format;
GstVideoFrame frame;
gint interlaced;
gboolean use_buffer_lists;
GstBufferList *list = NULL;
GstRTPBuffer rtp = { NULL, };
rtpvrawpay = GST_RTP_VRAW_PAY (payload);
gst_video_frame_map (&frame, &rtpvrawpay->vinfo, buffer, GST_MAP_READ);
GST_LOG_OBJECT (rtpvrawpay, "new frame of %" G_GSIZE_FORMAT " bytes",
gst_buffer_get_size (buffer));
/* get pointer and strides of the planes */
p0 = GST_VIDEO_FRAME_PLANE_DATA (&frame, 0);
yp = GST_VIDEO_FRAME_COMP_DATA (&frame, 0);
up = GST_VIDEO_FRAME_COMP_DATA (&frame, 1);
vp = GST_VIDEO_FRAME_COMP_DATA (&frame, 2);
ystride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 0);
uvstride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 1);
mtu = GST_RTP_BASE_PAYLOAD_MTU (payload);
/* amount of bytes for one pixel */
pgroup = rtpvrawpay->pgroup;
width = GST_VIDEO_INFO_WIDTH (&rtpvrawpay->vinfo);
height = GST_VIDEO_INFO_HEIGHT (&rtpvrawpay->vinfo);
interlaced = GST_VIDEO_INFO_IS_INTERLACED (&rtpvrawpay->vinfo);
format = GST_VIDEO_INFO_FORMAT (&rtpvrawpay->vinfo);
yinc = rtpvrawpay->yinc;
xinc = rtpvrawpay->xinc;
/* after how many packed lines we push out a buffer list */
lines_delay = GST_ROUND_UP_4 (height / rtpvrawpay->chunks_per_frame);
/* calculate how many buffers we expect to store in a single buffer list */
pgroups_per_packet = (mtu - (12 + 14)) / pgroup;
packets_per_packline = width / (xinc * pgroups_per_packet * 1.0);
packlines_per_list = height / (yinc * rtpvrawpay->chunks_per_frame);
buffers_per_list = packlines_per_list * packets_per_packline;
buffers_per_list = GST_ROUND_UP_8 (buffers_per_list);
use_buffer_lists = (rtpvrawpay->chunks_per_frame < (height / yinc));
fields = 1 + interlaced;
/* start with line 0, offset 0 */
for (field = 0; field < fields; field++) {
line = field;
offset = 0;
last_line = 0;
if (use_buffer_lists)
list = gst_buffer_list_new_sized (buffers_per_list);
/* write all lines */
while (line < height) {
guint left, pack_line;
GstBuffer *out;
guint8 *outdata, *headers;
gboolean next_line, complete = FALSE;
guint length, cont, pixels;
/* get the max allowed payload length size, we try to fill the complete MTU */
left = gst_rtp_buffer_calc_payload_len (mtu, 0, 0);
out = gst_rtp_buffer_new_allocate (left, 0, 0);
if (field == 0) {
GST_BUFFER_PTS (out) = GST_BUFFER_PTS (buffer);
} else {
GST_BUFFER_PTS (out) = GST_BUFFER_PTS (buffer) +
GST_BUFFER_DURATION (buffer) / 2;
}
gst_rtp_buffer_map (out, GST_MAP_WRITE, &rtp);
outdata = gst_rtp_buffer_get_payload (&rtp);
GST_LOG_OBJECT (rtpvrawpay, "created buffer of size %u for MTU %u", left,
mtu);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Extended Sequence Number | Length |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |F| Line No |C| Offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Length |F| Line No |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |C| Offset | .
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ .
* . .
* . Two (partial) lines of video data .
* . .
* +---------------------------------------------------------------+
*/
/* need 2 bytes for the extended sequence number */
*outdata++ = 0;
*outdata++ = 0;
left -= 2;
/* the headers start here */
headers = outdata;
/* make sure we can fit at least *one* header and pixel */
if (!(left > (6 + pgroup))) {
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (out);
goto too_small;
}
/* while we can fit at least one header and one pixel */
while (left > (6 + pgroup)) {
/* we need a 6 bytes header */
left -= 6;
/* get how may bytes we need for the remaining pixels */
pixels = width - offset;
length = (pixels * pgroup) / xinc;
if (left >= length) {
/* pixels and header fit completely, we will write them and skip to the
* next line. */
next_line = TRUE;
} else {
/* line does not fit completely, see how many pixels fit */
pixels = (left / pgroup) * xinc;
length = (pixels * pgroup) / xinc;
next_line = FALSE;
}
GST_LOG_OBJECT (rtpvrawpay, "filling %u bytes in %u pixels", length,
pixels);
left -= length;
/* write length */
*outdata++ = (length >> 8) & 0xff;
*outdata++ = length & 0xff;
/* write line no */
*outdata++ = ((line >> 8) & 0x7f) | ((field << 7) & 0x80);
*outdata++ = line & 0xff;
if (next_line) {
/* go to next line we do this here to make the check below easier */
line += yinc;
}
/* calculate continuation marker */
cont = (left > (6 + pgroup) && line < height) ? 0x80 : 0x00;
/* write offset and continuation marker */
*outdata++ = ((offset >> 8) & 0x7f) | cont;
*outdata++ = offset & 0xff;
if (next_line) {
/* reset offset */
offset = 0;
GST_LOG_OBJECT (rtpvrawpay, "go to next line %u", line);
} else {
offset += pixels;
GST_LOG_OBJECT (rtpvrawpay, "next offset %u", offset);
}
if (!cont)
break;
}
GST_LOG_OBJECT (rtpvrawpay, "consumed %u bytes",
(guint) (outdata - headers));
/* second pass, read headers and write the data */
while (TRUE) {
guint offs, lin;
/* read length and cont */
length = (headers[0] << 8) | headers[1];
lin = ((headers[2] & 0x7f) << 8) | headers[3];
offs = ((headers[4] & 0x7f) << 8) | headers[5];
cont = headers[4] & 0x80;
pixels = length / pgroup;
headers += 6;
GST_LOG_OBJECT (payload,
"writing length %u, line %u, offset %u, cont %d", length, lin, offs,
cont);
switch (format) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_UYVP:
offs /= xinc;
memcpy (outdata, p0 + (lin * ystride) + (offs * pgroup), length);
outdata += length;
break;
case GST_VIDEO_FORMAT_AYUV:
{
gint i;
guint8 *datap;
datap = p0 + (lin * ystride) + (offs * 4);
for (i = 0; i < pixels; i++) {
*outdata++ = datap[2];
*outdata++ = datap[1];
*outdata++ = datap[3];
datap += 4;
}
break;
}
case GST_VIDEO_FORMAT_I420:
{
gint i;
guint uvoff;
guint8 *yd1p, *yd2p, *udp, *vdp;
yd1p = yp + (lin * ystride) + (offs);
yd2p = yd1p + ystride;
uvoff = (lin / yinc * uvstride) + (offs / xinc);
udp = up + uvoff;
vdp = vp + uvoff;
for (i = 0; i < pixels; i++) {
*outdata++ = *yd1p++;
*outdata++ = *yd1p++;
*outdata++ = *yd2p++;
*outdata++ = *yd2p++;
*outdata++ = *udp++;
*outdata++ = *vdp++;
}
break;
}
case GST_VIDEO_FORMAT_Y41B:
{
gint i;
guint uvoff;
guint8 *ydp, *udp, *vdp;
ydp = yp + (lin * ystride) + offs;
uvoff = (lin / yinc * uvstride) + (offs / xinc);
udp = up + uvoff;
vdp = vp + uvoff;
for (i = 0; i < pixels; i++) {
*outdata++ = *udp++;
*outdata++ = *ydp++;
*outdata++ = *ydp++;
*outdata++ = *vdp++;
*outdata++ = *ydp++;
*outdata++ = *ydp++;
}
break;
}
default:
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (out);
goto unknown_sampling;
}
if (!cont)
break;
}
if (line >= height) {
GST_LOG_OBJECT (rtpvrawpay, "field/frame complete, set marker");
gst_rtp_buffer_set_marker (&rtp, TRUE);
complete = TRUE;
}
gst_rtp_buffer_unmap (&rtp);
if (left > 0) {
GST_LOG_OBJECT (rtpvrawpay, "we have %u bytes left", left);
gst_buffer_resize (out, 0, gst_buffer_get_size (out) - left);
}
/* Now either push out the buffer directly */
if (!use_buffer_lists) {
ret = gst_rtp_base_payload_push (payload, out);
continue;
}
/* or add the buffer to buffer list ... */
gst_buffer_list_add (list, out);
/* .. and check if we need to push out the list */
pack_line = (line - field) / fields;
if (complete || (pack_line > last_line && pack_line % lines_delay == 0)) {
GST_LOG_OBJECT (rtpvrawpay, "pushing list of %u buffers up to pack "
"line %u", gst_buffer_list_length (list), pack_line);
ret = gst_rtp_base_payload_push_list (payload, list);
list = NULL;
if (!complete)
list = gst_buffer_list_new_sized (buffers_per_list);
last_line = pack_line;
}
}
}
gst_video_frame_unmap (&frame);
gst_buffer_unref (buffer);
return ret;
/* ERRORS */
unknown_sampling:
{
GST_ELEMENT_ERROR (payload, STREAM, FORMAT,
(NULL), ("unimplemented sampling"));
gst_video_frame_unmap (&frame);
gst_buffer_unref (buffer);
return GST_FLOW_NOT_SUPPORTED;
}
too_small:
{
GST_ELEMENT_ERROR (payload, RESOURCE, NO_SPACE_LEFT,
(NULL), ("not enough space to send at least one pixel"));
gst_video_frame_unmap (&frame);
gst_buffer_unref (buffer);
return GST_FLOW_NOT_SUPPORTED;
}
}
/* Copy/pasted from 0.11 video.c */
static int
fill_planes (GstBlendVideoFormatInfo * info)
{
gint width, height;
width = info->width;
height = info->height;
switch (info->fmt) {
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_YVYU:
case GST_VIDEO_FORMAT_UYVY:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_r210:
info->stride[0] = width * 4;
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_BGR16:
case GST_VIDEO_FORMAT_RGB15:
case GST_VIDEO_FORMAT_BGR15:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_v308:
info->stride[0] = GST_ROUND_UP_4 (width * 3);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_v210:
info->stride[0] = ((width + 47) / 48) * 128;
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_v216:
info->stride[0] = GST_ROUND_UP_8 (width * 4);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_Y800:
info->stride[0] = GST_ROUND_UP_4 (width);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_Y16:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_UYVP:
info->stride[0] = GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_RGB8_PALETTED:
info->stride[0] = GST_ROUND_UP_4 (width);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_IYU1:
info->stride[0] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
GST_ROUND_UP_4 (width) / 2);
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_ARGB64:
case GST_VIDEO_FORMAT_AYUV64:
info->stride[0] = width * 8;
info->offset[0] = 0;
break;
case GST_VIDEO_FORMAT_I420:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_YV12: /* same as I420, but plane 1+2 swapped */
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[2] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[1] = info->offset[2] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_Y41B:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_16 (width) / 4;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * height;
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP16(w)/4)*h */
break;
case GST_VIDEO_FORMAT_Y42B:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_8 (width) / 2;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * height;
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h */
break;
case GST_VIDEO_FORMAT_Y444:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->stride[2] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] * 2;
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_A420:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
info->stride[2] = info->stride[1];
info->stride[3] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
info->offset[3] = info->offset[2] +
info->stride[2] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_YUV9:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_4 (height) / 4);
break;
case GST_VIDEO_FORMAT_YVU9:
info->stride[0] = GST_ROUND_UP_4 (width);
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[2] = info->stride[0] * height;
info->offset[1] = info->offset[2] +
info->stride[1] * (GST_ROUND_UP_4 (height) / 4);
break;
case GST_VIDEO_FORMAT_I420_10LE:
case GST_VIDEO_FORMAT_I420_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = GST_ROUND_UP_4 (width);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
info->size = info->offset[2] +
info->stride[2] * (GST_ROUND_UP_2 (height) / 2);
break;
case GST_VIDEO_FORMAT_I422_10LE:
case GST_VIDEO_FORMAT_I422_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = GST_ROUND_UP_4 (width);
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
info->offset[2] = info->offset[1] +
info->stride[1] * GST_ROUND_UP_2 (height);
info->size = info->offset[2] + info->stride[2] * GST_ROUND_UP_2 (height);
break;
case GST_VIDEO_FORMAT_Y444_10LE:
case GST_VIDEO_FORMAT_Y444_10BE:
info->stride[0] = GST_ROUND_UP_4 (width * 2);
info->stride[1] = info->stride[0];
info->stride[2] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] * 2;
info->size = info->stride[0] * height * 3;
break;
case GST_VIDEO_FORMAT_UNKNOWN:
default:
GST_ERROR ("invalid format");
g_warning ("invalid format");
break;
}
return 0;
}
static gboolean
gst_rtp_vraw_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
{
GstStructure *structure;
GstRtpVRawDepay *rtpvrawdepay;
gint clock_rate;
const gchar *str, *type;
gint format, width, height, pgroup, xinc, yinc;
guint ystride, uvstride, yp, up, vp, outsize;
GstCaps *srccaps;
guint32 fourcc = 0;
gboolean res;
rtpvrawdepay = GST_RTP_VRAW_DEPAY (depayload);
structure = gst_caps_get_structure (caps, 0);
yp = up = vp = uvstride = 0;
xinc = yinc = 1;
if (!gst_structure_get_int (structure, "clock-rate", &clock_rate))
clock_rate = 90000; /* default */
depayload->clock_rate = clock_rate;
if (!(str = gst_structure_get_string (structure, "width")))
goto no_width;
width = atoi (str);
if (!(str = gst_structure_get_string (structure, "height")))
goto no_height;
height = atoi (str);
/* optional interlace value but we don't handle interlaced
* formats yet */
if (gst_structure_get_string (structure, "interlace"))
goto interlaced;
if (!(str = gst_structure_get_string (structure, "sampling")))
goto no_sampling;
if (!strcmp (str, "RGB")) {
format = GST_VIDEO_FORMAT_RGB;
pgroup = 3;
ystride = GST_ROUND_UP_4 (width * 3);
outsize = ystride * height;
type = "video/x-raw-rgb";
} else if (!strcmp (str, "RGBA")) {
format = GST_VIDEO_FORMAT_RGBA;
pgroup = 4;
ystride = width * 4;
outsize = ystride * height;
type = "video/x-raw-rgb";
} else if (!strcmp (str, "BGR")) {
format = GST_VIDEO_FORMAT_BGR;
pgroup = 3;
ystride = GST_ROUND_UP_4 (width * 3);
outsize = ystride * height;
type = "video/x-raw-rgb";
} else if (!strcmp (str, "BGRA")) {
format = GST_VIDEO_FORMAT_BGRA;
pgroup = 4;
ystride = width * 4;
outsize = ystride * height;
type = "video/x-raw-rgb";
} else if (!strcmp (str, "YCbCr-4:4:4")) {
format = GST_VIDEO_FORMAT_AYUV;
pgroup = 3;
ystride = width * 4;
outsize = ystride * height;
type = "video/x-raw-yuv";
fourcc = GST_MAKE_FOURCC ('A', 'Y', 'U', 'V');
} else if (!strcmp (str, "YCbCr-4:2:2")) {
format = GST_VIDEO_FORMAT_UYVY;
pgroup = 4;
ystride = GST_ROUND_UP_2 (width) * 2;
outsize = ystride * height;
type = "video/x-raw-yuv";
fourcc = GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y');
xinc = 2;
} else if (!strcmp (str, "YCbCr-4:2:0")) {
format = GST_VIDEO_FORMAT_I420;
pgroup = 6;
ystride = GST_ROUND_UP_4 (width);
uvstride = GST_ROUND_UP_8 (width) / 2;
up = ystride * GST_ROUND_UP_2 (height);
vp = up + uvstride * GST_ROUND_UP_2 (height) / 2;
outsize = vp + uvstride * GST_ROUND_UP_2 (height) / 2;
type = "video/x-raw-yuv";
fourcc = GST_MAKE_FOURCC ('I', '4', '2', '0');
xinc = yinc = 2;
} else if (!strcmp (str, "YCbCr-4:1:1")) {
format = GST_VIDEO_FORMAT_Y41B;
pgroup = 6;
ystride = GST_ROUND_UP_4 (width);
uvstride = GST_ROUND_UP_8 (width) / 4;
up = ystride * height;
vp = up + uvstride * height;
outsize = vp + uvstride * height;
type = "video/x-raw-yuv";
fourcc = GST_MAKE_FOURCC ('Y', '4', '1', 'B');
xinc = 4;
} else
goto unknown_format;
rtpvrawdepay->width = width;
rtpvrawdepay->height = height;
rtpvrawdepay->format = format;
rtpvrawdepay->yp = yp;
rtpvrawdepay->up = up;
rtpvrawdepay->vp = vp;
rtpvrawdepay->pgroup = pgroup;
rtpvrawdepay->xinc = xinc;
rtpvrawdepay->yinc = yinc;
rtpvrawdepay->ystride = ystride;
rtpvrawdepay->uvstride = uvstride;
rtpvrawdepay->outsize = outsize;
srccaps = gst_caps_new_simple (type,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"format", GST_TYPE_FOURCC, fourcc,
"framerate", GST_TYPE_FRACTION, 0, 1, NULL);
res = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
gst_caps_unref (srccaps);
GST_DEBUG_OBJECT (depayload, "width %d, height %d, format %d", width, height,
format);
GST_DEBUG_OBJECT (depayload, "yp %d, up %d, vp %d", yp, up, vp);
GST_DEBUG_OBJECT (depayload, "pgroup %d, ystride %d, uvstride %d", pgroup,
ystride, uvstride);
GST_DEBUG_OBJECT (depayload, "outsize %u", outsize);
return res;
/* ERRORS */
no_width:
{
GST_ERROR_OBJECT (depayload, "no width specified");
return FALSE;
}
no_height:
{
GST_ERROR_OBJECT (depayload, "no height specified");
return FALSE;
}
interlaced:
{
GST_ERROR_OBJECT (depayload, "interlaced formats not supported yet");
return FALSE;
}
no_sampling:
{
GST_ERROR_OBJECT (depayload, "no sampling specified");
return FALSE;
}
unknown_format:
{
GST_ERROR_OBJECT (depayload, "unknown sampling format '%s'", str);
return FALSE;
}
}
static gboolean
gst_rtp_vraw_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{
GstRtpVRawPay *rtpvrawpay;
GstStructure *s;
gboolean res;
const gchar *name;
gint width, height;
gint yp, up, vp;
gint pgroup, ystride, uvstride = 0, xinc, yinc;
GstVideoFormat sampling;
const gchar *depthstr, *samplingstr, *colorimetrystr;
gchar *wstr, *hstr;
gboolean interlaced;
const gchar *color_matrix;
gint depth;
rtpvrawpay = GST_RTP_VRAW_PAY (payload);
s = gst_caps_get_structure (caps, 0);
/* start parsing the format */
name = gst_structure_get_name (s);
/* these values are the only thing we can do */
depthstr = "8";
/* parse common width/height */
res = gst_structure_get_int (s, "width", &width);
res &= gst_structure_get_int (s, "height", &height);
if (!res)
goto missing_dimension;
if (!gst_structure_get_boolean (s, "interlaced", &interlaced))
interlaced = FALSE;
color_matrix = gst_structure_get_string (s, "color-matrix");
colorimetrystr = "SMPTE240M";
if (color_matrix) {
if (g_str_equal (color_matrix, "sdtv")) {
/* BT.601 implies a bit more than just color-matrix */
colorimetrystr = "BT601-5";
} else if (g_str_equal (color_matrix, "hdtv")) {
colorimetrystr = "BT709-2";
}
}
yp = up = vp = 0;
xinc = yinc = 1;
if (!strcmp (name, "video/x-raw-rgb")) {
gint amask, rmask;
gboolean has_alpha;
has_alpha = gst_structure_get_int (s, "alpha_mask", &amask);
depth = 8;
if (!gst_structure_get_int (s, "red_mask", &rmask))
goto unknown_mask;
if (has_alpha) {
pgroup = 4;
ystride = width * 4;
if (rmask == 0xFF000000) {
sampling = GST_VIDEO_FORMAT_RGBA;
samplingstr = "RGBA";
} else {
sampling = GST_VIDEO_FORMAT_BGRA;
samplingstr = "BGRA";
}
} else {
pgroup = 3;
ystride = GST_ROUND_UP_4 (width * 3);
if (rmask == 0x00FF0000) {
sampling = GST_VIDEO_FORMAT_RGB;
samplingstr = "RGB";
} else {
sampling = GST_VIDEO_FORMAT_BGR;
samplingstr = "BGR";
}
}
} else if (!strcmp (name, "video/x-raw-yuv")) {
guint32 fourcc;
if (!gst_structure_get_fourcc (s, "format", &fourcc))
goto unknown_fourcc;
GST_LOG_OBJECT (payload, "have fourcc %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (fourcc));
switch (fourcc) {
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
sampling = GST_VIDEO_FORMAT_AYUV;
samplingstr = "YCbCr-4:4:4";
pgroup = 3;
ystride = width * 4;
depth = 8;
break;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
sampling = GST_VIDEO_FORMAT_UYVY;
samplingstr = "YCbCr-4:2:2";
pgroup = 4;
xinc = 2;
ystride = GST_ROUND_UP_2 (width) * 2;
depth = 8;
break;
case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
sampling = GST_VIDEO_FORMAT_Y41B;
samplingstr = "YCbCr-4:1:1";
pgroup = 6;
xinc = 4;
ystride = GST_ROUND_UP_4 (width);
uvstride = GST_ROUND_UP_8 (width) / 4;
up = ystride * height;
vp = up + uvstride * height;
depth = 8;
break;
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
sampling = GST_VIDEO_FORMAT_I420;
samplingstr = "YCbCr-4:2:0";
pgroup = 6;
xinc = yinc = 2;
ystride = GST_ROUND_UP_4 (width);
uvstride = GST_ROUND_UP_8 (width) / 2;
up = ystride * GST_ROUND_UP_2 (height);
vp = up + uvstride * GST_ROUND_UP_2 (height) / 2;
depth = 8;
break;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'P'):
#define GST_VIDEO_FORMAT_UYVP GST_VIDEO_FORMAT_UYVY /* FIXME */
sampling = GST_VIDEO_FORMAT_UYVP;
samplingstr = "YCbCr-4:2:2";
pgroup = 4;
xinc = 2;
ystride = GST_ROUND_UP_2 (width) * 2;
depth = 10;
break;
default:
goto unknown_fourcc;
}
} else
goto unknown_format;
if (interlaced) {
yinc *= 2;
}
if (depth == 10) {
depthstr = "10";
}
rtpvrawpay->width = width;
rtpvrawpay->height = height;
rtpvrawpay->sampling = sampling;
rtpvrawpay->pgroup = pgroup;
rtpvrawpay->xinc = xinc;
rtpvrawpay->yinc = yinc;
rtpvrawpay->yp = yp;
rtpvrawpay->up = up;
rtpvrawpay->vp = vp;
rtpvrawpay->ystride = ystride;
rtpvrawpay->uvstride = uvstride;
rtpvrawpay->interlaced = interlaced;
rtpvrawpay->depth = depth;
GST_DEBUG_OBJECT (payload, "width %d, height %d, sampling %d", width, height,
sampling);
GST_DEBUG_OBJECT (payload, "yp %d, up %d, vp %d", yp, up, vp);
GST_DEBUG_OBJECT (payload, "pgroup %d, ystride %d, uvstride %d", pgroup,
ystride, uvstride);
wstr = g_strdup_printf ("%d", rtpvrawpay->width);
hstr = g_strdup_printf ("%d", rtpvrawpay->height);
gst_basertppayload_set_options (payload, "video", TRUE, "RAW", 90000);
if (interlaced) {
res = gst_basertppayload_set_outcaps (payload, "sampling", G_TYPE_STRING,
samplingstr, "depth", G_TYPE_STRING, depthstr, "width", G_TYPE_STRING,
wstr, "height", G_TYPE_STRING, hstr, "colorimetry", G_TYPE_STRING,
colorimetrystr, "interlace", G_TYPE_STRING, "true", NULL);
} else {
res = gst_basertppayload_set_outcaps (payload, "sampling", G_TYPE_STRING,
samplingstr, "depth", G_TYPE_STRING, depthstr, "width", G_TYPE_STRING,
wstr, "height", G_TYPE_STRING, hstr, "colorimetry", G_TYPE_STRING,
colorimetrystr, NULL);
}
g_free (wstr);
g_free (hstr);
return res;
/* ERRORS */
unknown_mask:
{
GST_ERROR_OBJECT (payload, "unknown red mask specified");
return FALSE;
}
unknown_format:
{
GST_ERROR_OBJECT (payload, "unknown caps format");
return FALSE;
}
unknown_fourcc:
{
GST_ERROR_OBJECT (payload, "invalid or missing fourcc");
return FALSE;
}
missing_dimension:
{
GST_ERROR_OBJECT (payload, "missing width or height property");
return FALSE;
}
}
static void
gst_dewarp_calculate_dimensions (GstDewarp * filter, GstPadDirection direction,
gint in_width, gint in_height, gint * out_width, gint * out_height)
{
if (filter->outer_radius <= filter->inner_radius) {
GST_LOG_OBJECT (filter,
"No dimensions conversion required, in width: %" G_GINT32_FORMAT
" in height: %" G_GINT32_FORMAT, in_width, in_height);
*out_width = in_width;
*out_height = in_height;
} else {
gdouble r1, r2;
GST_LOG_OBJECT (filter,
"Calculate dimensions, in_width: %" G_GINT32_FORMAT
" in_height: %" G_GINT32_FORMAT " pad sink width: %" G_GINT32_FORMAT
" pad sink height: %" G_GINT32_FORMAT
" inner radius: %f, outer radius: %f, direction: %d", in_width,
in_height, filter->pad_sink_width, filter->pad_sink_height,
filter->inner_radius, filter->outer_radius, direction);
r1 = in_width * filter->inner_radius;
r2 = in_width * filter->outer_radius;
if (direction == GST_PAD_SINK) {
/* roundup is required to have integer results when we divide width, height
* in display mode different from GST_DEWARP_PANORAMA.
* Additionally some elements such as xvimagesink have problems with arbitrary
* dimensions, a roundup solves this issue too
*/
*out_width = GST_ROUND_UP_8 ((gint) ((2.0 * G_PI) * ((r2 + r1) / 2.0)));
*out_height = GST_ROUND_UP_8 ((gint) (r2 - r1));
if (filter->display_mode != GST_DEWARP_DISPLAY_PANORAMA) {
*out_width = *out_width / 2;
*out_height = *out_height * 2;
}
/* if outer_radius and inner radius are very close then width and height
could be 0, we assume passtrough in this case
*/
if (G_UNLIKELY (*out_width == 0) || G_UNLIKELY (*out_height == 0)) {
GST_WARNING_OBJECT (filter,
"Invalid calculated dimensions, width: %" G_GINT32_FORMAT
" height: %" G_GINT32_FORMAT, *out_width, *out_height);
*out_width = in_width;
*out_height = in_height;
}
filter->pad_sink_width = in_width;
filter->pad_sink_height = in_height;
} else {
if (filter->pad_sink_width > 0) {
*out_width = filter->pad_sink_width;
} else {
*out_width = in_width;
}
if (filter->pad_sink_height > 0) {
*out_height = filter->pad_sink_height;
} else {
*out_height = in_height;
}
}
}
GST_LOG_OBJECT (filter,
"Calculated dimensions: width %" G_GINT32_FORMAT " => %" G_GINT32_FORMAT
", height %" G_GINT32_FORMAT " => %" G_GINT32_FORMAT " direction: %d",
in_width, *out_width, in_height, *out_height, direction);
}
static GstXvImageMeta *
gst_buffer_add_xvimage_meta (GstBuffer * buffer, GstXvImageBufferPool * xvpool)
{
GstXvImageSink *xvimagesink;
int (*handler) (Display *, XErrorEvent *);
gboolean success = FALSE;
GstXContext *xcontext;
GstXvImageMeta *meta;
gint width, height, im_format, align = 15, offset;
GstXvImageBufferPoolPrivate *priv;
priv = xvpool->priv;
xvimagesink = xvpool->sink;
xcontext = xvimagesink->xcontext;
width = priv->padded_width;
height = priv->padded_height;
im_format = priv->im_format;
meta =
(GstXvImageMeta *) gst_buffer_add_meta (buffer, GST_XVIMAGE_META_INFO,
NULL);
#ifdef HAVE_XSHM
meta->SHMInfo.shmaddr = ((void *) -1);
meta->SHMInfo.shmid = -1;
#endif
meta->x = priv->align.padding_left;
meta->y = priv->align.padding_top;
meta->width = priv->info.width;
meta->height = priv->info.height;
meta->sink = gst_object_ref (xvimagesink);
meta->im_format = im_format;
GST_DEBUG_OBJECT (xvimagesink, "creating image %p (%dx%d)", buffer,
width, height);
g_mutex_lock (&xvimagesink->x_lock);
/* Setting an error handler to catch failure */
error_caught = FALSE;
handler = XSetErrorHandler (gst_xvimagesink_handle_xerror);
#ifdef HAVE_XSHM
if (xcontext->use_xshm) {
int expected_size;
meta->xvimage = XvShmCreateImage (xcontext->disp,
xcontext->xv_port_id, im_format, NULL, width, height, &meta->SHMInfo);
if (!meta->xvimage || error_caught) {
g_mutex_unlock (&xvimagesink->x_lock);
/* Reset error flag */
error_caught = FALSE;
/* Push a warning */
GST_ELEMENT_WARNING (xvimagesink, RESOURCE, WRITE,
("Failed to create output image buffer of %dx%d pixels",
width, height),
("could not XShmCreateImage a %dx%d image", width, height));
/* Retry without XShm */
xvimagesink->xcontext->use_xshm = FALSE;
/* Hold X mutex again to try without XShm */
g_mutex_lock (&xvimagesink->x_lock);
goto no_xshm;
}
/* we have to use the returned data_size for our shm size */
meta->size = meta->xvimage->data_size;
GST_LOG_OBJECT (xvimagesink, "XShm image size is %" G_GSIZE_FORMAT,
meta->size);
/* calculate the expected size. This is only for sanity checking the
* number we get from X. */
switch (im_format) {
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
{
gint pitches[3];
gint offsets[3];
guint plane;
offsets[0] = 0;
pitches[0] = GST_ROUND_UP_4 (width);
offsets[1] = offsets[0] + pitches[0] * GST_ROUND_UP_2 (height);
pitches[1] = GST_ROUND_UP_8 (width) / 2;
offsets[2] = offsets[1] + pitches[1] * GST_ROUND_UP_2 (height) / 2;
pitches[2] = GST_ROUND_UP_8 (pitches[0]) / 2;
expected_size = offsets[2] + pitches[2] * GST_ROUND_UP_2 (height) / 2;
for (plane = 0; plane < meta->xvimage->num_planes; plane++) {
GST_DEBUG_OBJECT (xvimagesink,
"Plane %u has a expected pitch of %d bytes, " "offset of %d",
plane, pitches[plane], offsets[plane]);
}
break;
}
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
expected_size = height * GST_ROUND_UP_4 (width * 2);
break;
default:
expected_size = 0;
break;
}
if (expected_size != 0 && meta->size != expected_size) {
GST_WARNING_OBJECT (xvimagesink,
"unexpected XShm image size (got %" G_GSIZE_FORMAT ", expected %d)",
meta->size, expected_size);
}
/* Be verbose about our XvImage stride */
{
guint plane;
for (plane = 0; plane < meta->xvimage->num_planes; plane++) {
GST_DEBUG_OBJECT (xvimagesink, "Plane %u has a pitch of %d bytes, "
"offset of %d", plane, meta->xvimage->pitches[plane],
meta->xvimage->offsets[plane]);
}
}
/* get shared memory */
meta->SHMInfo.shmid =
shmget (IPC_PRIVATE, meta->size + align, IPC_CREAT | 0777);
if (meta->SHMInfo.shmid == -1)
goto shmget_failed;
/* attach */
meta->SHMInfo.shmaddr = shmat (meta->SHMInfo.shmid, NULL, 0);
if (meta->SHMInfo.shmaddr == ((void *) -1))
goto shmat_failed;
/* now we can set up the image data */
meta->xvimage->data = meta->SHMInfo.shmaddr;
meta->SHMInfo.readOnly = FALSE;
if (XShmAttach (xcontext->disp, &meta->SHMInfo) == 0)
goto xattach_failed;
XSync (xcontext->disp, FALSE);
/* Delete the shared memory segment as soon as we everyone is attached.
* This way, it will be deleted as soon as we detach later, and not
* leaked if we crash. */
shmctl (meta->SHMInfo.shmid, IPC_RMID, NULL);
GST_DEBUG_OBJECT (xvimagesink, "XServer ShmAttached to 0x%x, id 0x%lx",
meta->SHMInfo.shmid, meta->SHMInfo.shmseg);
} else
no_xshm:
#endif /* HAVE_XSHM */
{
meta->xvimage = XvCreateImage (xcontext->disp,
xcontext->xv_port_id, im_format, NULL, width, height);
if (!meta->xvimage || error_caught)
goto create_failed;
/* we have to use the returned data_size for our image size */
meta->size = meta->xvimage->data_size;
meta->xvimage->data = g_malloc (meta->size + align);
XSync (xcontext->disp, FALSE);
}
if ((offset = ((guintptr) meta->xvimage->data & align)))
offset = (align + 1) - offset;
GST_DEBUG_OBJECT (xvimagesink, "memory %p, align %d, offset %d",
meta->xvimage->data, align, offset);
/* Reset error handler */
error_caught = FALSE;
XSetErrorHandler (handler);
gst_buffer_append_memory (buffer,
gst_memory_new_wrapped (GST_MEMORY_FLAG_NO_SHARE, meta->xvimage->data,
meta->size + align, offset, meta->size, NULL, NULL));
g_mutex_unlock (&xvimagesink->x_lock);
success = TRUE;
beach:
if (!success)
meta = NULL;
return meta;
/* ERRORS */
create_failed:
{
g_mutex_unlock (&xvimagesink->x_lock);
/* Reset error handler */
error_caught = FALSE;
XSetErrorHandler (handler);
/* Push an error */
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
("Failed to create output image buffer of %dx%d pixels",
width, height),
("could not XvShmCreateImage a %dx%d image", width, height));
goto beach;
}
#ifdef HAVE_XSHM
shmget_failed:
{
g_mutex_unlock (&xvimagesink->x_lock);
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
("Failed to create output image buffer of %dx%d pixels",
width, height),
("could not get shared memory of %" G_GSIZE_FORMAT " bytes",
meta->size));
goto beach;
}
shmat_failed:
{
g_mutex_unlock (&xvimagesink->x_lock);
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
("Failed to create output image buffer of %dx%d pixels",
width, height), ("Failed to shmat: %s", g_strerror (errno)));
/* Clean up the shared memory segment */
shmctl (meta->SHMInfo.shmid, IPC_RMID, NULL);
goto beach;
}
xattach_failed:
{
/* Clean up the shared memory segment */
shmctl (meta->SHMInfo.shmid, IPC_RMID, NULL);
g_mutex_unlock (&xvimagesink->x_lock);
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
("Failed to create output image buffer of %dx%d pixels",
width, height), ("Failed to XShmAttach"));
goto beach;
}
#endif
}
static GstFlowReturn
theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
GstClockTime outtime)
{
/* normal data packet */
yuv_buffer yuv;
GstBuffer *out;
guint i;
gboolean keyframe;
gint out_size;
gint stride_y, stride_uv;
gint width, height;
gint cwidth, cheight;
GstFlowReturn result;
if (G_UNLIKELY (!dec->have_header))
goto not_initialized;
/* the second most significant bit of the first data byte is cleared
* for keyframes. We can only check it if it's not a zero-length packet. */
keyframe = packet->bytes && ((packet->packet[0] & 0x40) == 0);
if (G_UNLIKELY (keyframe)) {
GST_DEBUG_OBJECT (dec, "we have a keyframe");
dec->need_keyframe = FALSE;
} else if (G_UNLIKELY (dec->need_keyframe)) {
goto dropping;
}
GST_DEBUG_OBJECT (dec, "parsing data packet");
/* this does the decoding */
if (G_UNLIKELY (theora_decode_packetin (&dec->state, packet)))
goto decode_error;
if (outtime != -1) {
gboolean need_skip;
GstClockTime qostime;
/* qos needs to be done on running time */
qostime = gst_segment_to_running_time (&dec->segment, GST_FORMAT_TIME,
outtime);
GST_OBJECT_LOCK (dec);
/* check for QoS, don't perform the last steps of getting and
* pushing the buffers that are known to be late. */
/* FIXME, we can also entirely skip decoding if the next valid buffer is
* known to be after a keyframe (using the granule_shift) */
need_skip = dec->earliest_time != -1 && qostime <= dec->earliest_time;
GST_OBJECT_UNLOCK (dec);
if (need_skip)
goto dropping_qos;
}
/* this does postprocessing and set up the decoded frame
* pointers in our yuv variable */
if (G_UNLIKELY (theora_decode_YUVout (&dec->state, &yuv) < 0))
goto no_yuv;
if (G_UNLIKELY ((yuv.y_width != dec->info.width)
|| (yuv.y_height != dec->info.height)))
goto wrong_dimensions;
width = dec->width;
height = dec->height;
cwidth = width / 2;
cheight = height / 2;
/* should get the stride from the caps, for now we round up to the nearest
* multiple of 4 because some element needs it. chroma needs special
* treatment, see videotestsrc. */
stride_y = GST_ROUND_UP_4 (width);
stride_uv = GST_ROUND_UP_8 (width) / 2;
out_size = stride_y * height + stride_uv * cheight * 2;
/* now copy over the area contained in offset_x,offset_y,
* frame_width, frame_height */
result =
gst_pad_alloc_buffer_and_set_caps (dec->srcpad, GST_BUFFER_OFFSET_NONE,
out_size, GST_PAD_CAPS (dec->srcpad), &out);
if (G_UNLIKELY (result != GST_FLOW_OK))
goto no_buffer;
/* copy the visible region to the destination. This is actually pretty
* complicated and gstreamer doesn't support all the needed caps to do this
* correctly. For example, when we have an odd offset, we should only combine
* 1 row/column of luma samples with one chroma sample in colorspace conversion.
* We compensate for this by adding a black border around the image when the
* offset or size is odd (see above).
*/
{
guchar *dest_y, *src_y;
guchar *dest_u, *src_u;
guchar *dest_v, *src_v;
gint offset;
dest_y = GST_BUFFER_DATA (out);
dest_u = dest_y + stride_y * height;
dest_v = dest_u + stride_uv * cheight;
src_y = yuv.y + dec->offset_x + dec->offset_y * yuv.y_stride;
for (i = 0; i < height; i++) {
memcpy (dest_y, src_y, width);
dest_y += stride_y;
src_y += yuv.y_stride;
}
offset = dec->offset_x / 2 + dec->offset_y / 2 * yuv.uv_stride;
src_u = yuv.u + offset;
src_v = yuv.v + offset;
for (i = 0; i < cheight; i++) {
memcpy (dest_u, src_u, cwidth);
memcpy (dest_v, src_v, cwidth);
dest_u += stride_uv;
src_u += yuv.uv_stride;
dest_v += stride_uv;
src_v += yuv.uv_stride;
}
}
GST_BUFFER_OFFSET (out) = dec->frame_nr;
if (dec->frame_nr != -1)
dec->frame_nr++;
GST_BUFFER_OFFSET_END (out) = dec->frame_nr;
if (dec->granulepos != -1) {
gint64 cf = _theora_granule_frame (dec, dec->granulepos) + 1;
GST_BUFFER_DURATION (out) = gst_util_uint64_scale_int (cf * GST_SECOND,
dec->info.fps_denominator, dec->info.fps_numerator) - outtime;
} else {
GST_BUFFER_DURATION (out) =
gst_util_uint64_scale_int (GST_SECOND, dec->info.fps_denominator,
dec->info.fps_numerator);
}
GST_BUFFER_TIMESTAMP (out) = outtime;
if (dec->segment.rate >= 0.0)
result = theora_dec_push_forward (dec, out);
else
result = theora_dec_push_reverse (dec, out);
return result;
/* ERRORS */
not_initialized:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("no header sent yet"));
return GST_FLOW_ERROR;
}
dropping:
{
GST_WARNING_OBJECT (dec, "dropping frame because we need a keyframe");
dec->discont = TRUE;
return GST_FLOW_OK;
}
dropping_qos:
{
if (dec->frame_nr != -1)
dec->frame_nr++;
dec->discont = TRUE;
GST_WARNING_OBJECT (dec, "dropping frame because of QoS");
return GST_FLOW_OK;
}
decode_error:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("theora decoder did not decode data packet"));
return GST_FLOW_ERROR;
}
no_yuv:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't read out YUV image"));
return GST_FLOW_ERROR;
}
wrong_dimensions:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, FORMAT,
(NULL), ("dimensions of image do not match header"));
return GST_FLOW_ERROR;
}
no_buffer:
{
GST_DEBUG_OBJECT (dec, "could not get buffer, reason: %s",
gst_flow_get_name (result));
return result;
}
}
/**
* gst_video_format_get_component_offset:
* @format: a #GstVideoFormat
* @component: the component index
* @width: the width of video
* @height: the height of video
*
* Calculates the offset (in bytes) of the first pixel of the component
* with index @component. For packed formats, this will typically be a
* small integer (0, 1, 2, 3). For planar formats, this will be a
* (relatively) large offset to the beginning of the second or third
* component planes. See @gst_video_format_get_row_stride for a description
* of the component index.
*
* Since: 0.10.16
*
* Returns: offset of component @component
*/
int
gst_video_format_get_component_offset (GstVideoFormat format, int component,
int width, int height)
{
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 && height > 0, 0);
switch (format) {
case GST_VIDEO_FORMAT_I420:
if (component == 0)
return 0;
if (component == 1)
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
if (component == 2) {
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2);
}
return 0;
case GST_VIDEO_FORMAT_YV12: /* same as I420, but components 1+2 swapped */
if (component == 0)
return 0;
if (component == 2)
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
if (component == 1) {
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2);
}
return 0;
case GST_VIDEO_FORMAT_YUY2:
if (component == 0)
return 0;
if (component == 1)
return 1;
if (component == 2)
return 3;
return 0;
case GST_VIDEO_FORMAT_UYVY:
if (component == 0)
return 1;
if (component == 1)
return 0;
if (component == 2)
return 2;
return 0;
case GST_VIDEO_FORMAT_AYUV:
if (component == 0)
return 1;
if (component == 1)
return 2;
if (component == 2)
return 3;
if (component == 3)
return 0;
return 0;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
if (component == 0)
return 0;
if (component == 1)
return 1;
if (component == 2)
return 2;
if (component == 3)
return 3;
return 0;
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
if (component == 0)
return 2;
if (component == 1)
return 1;
if (component == 2)
return 0;
if (component == 3)
return 3;
return 0;
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
if (component == 0)
return 1;
if (component == 1)
return 2;
if (component == 2)
return 3;
if (component == 3)
return 0;
return 0;
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
if (component == 0)
return 3;
if (component == 1)
return 2;
if (component == 2)
return 1;
if (component == 3)
return 0;
return 0;
case GST_VIDEO_FORMAT_RGB:
if (component == 0)
return 0;
if (component == 1)
return 1;
if (component == 2)
return 2;
return 0;
case GST_VIDEO_FORMAT_BGR:
if (component == 0)
return 2;
if (component == 1)
return 1;
if (component == 2)
return 0;
return 0;
case GST_VIDEO_FORMAT_Y41B:
if (component == 0)
return 0;
if (component == 1)
return GST_ROUND_UP_4 (width) * height;
if (component == 2)
return (GST_ROUND_UP_4 (width) + (GST_ROUND_UP_8 (width) / 4)) * height;
return 0;
case GST_VIDEO_FORMAT_Y42B:
if (component == 0)
return 0;
if (component == 1)
return GST_ROUND_UP_4 (width) * height;
if (component == 2)
return (GST_ROUND_UP_4 (width) + (GST_ROUND_UP_8 (width) / 2)) * height;
return 0;
default:
return 0;
}
}
