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gstreamer/gst/ffmpegcolorspace/gstffmpegcodecmap.c
Wim Taymans 760e6b8be8 gst/ffmpegcolorspace/gstffmpegcodecmap.c: Fix RGBA32 caps. Fixes #357038. 
Original commit message from CVS:
* gst/ffmpegcolorspace/gstffmpegcodecmap.c:
(gst_ffmpeg_pixfmt_to_caps):
Fix RGBA32 caps. Fixes #357038.
2006-11-20 15:01:09 +00:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* This file:
* Copyright (c) 2002-2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <gst/gst.h>
#include "avcodec.h"
#include "gstffmpegcodecmap.h"
static GstCaps *
gst_ff_vid_caps_new (AVCodecContext * context,
const char *mimetype, const char *fieldname, ...)
G_GNUC_NULL_TERMINATED;
static GstCaps *gst_ff_aud_caps_new (AVCodecContext * context,
const char *mimetype, const char *fieldname, ...) G_GNUC_NULL_TERMINATED;
/*
* Read a palette from a caps.
*/
static void
gst_ffmpeg_get_palette (const GstCaps * caps, AVCodecContext * context)
{
GstStructure *str = gst_caps_get_structure (caps, 0);
const GValue *palette_v;
/* do we have a palette? */
if ((palette_v = gst_structure_get_value (str, "palette_data")) && context) {
const GstBuffer *palette;
palette = gst_value_get_buffer (palette_v);
if (palette && GST_BUFFER_SIZE (palette) >= 256 * 4) {
if (context->palctrl)
av_free (context->palctrl);
context->palctrl = av_malloc (sizeof (AVPaletteControl));
context->palctrl->palette_changed = 1;
memcpy (context->palctrl->palette, GST_BUFFER_DATA (palette),
AVPALETTE_SIZE);
}
}
}
static void
gst_ffmpeg_set_palette (GstCaps * caps, AVCodecContext * context)
{
if (context->palctrl) {
GstBuffer *palette = gst_buffer_new_and_alloc (256 * 4);
memcpy (GST_BUFFER_DATA (palette), context->palctrl->palette,
AVPALETTE_SIZE);
gst_caps_set_simple (caps, "palette_data", GST_TYPE_BUFFER, palette, NULL);
gst_buffer_unref (palette);
}
}
/* this function creates caps with fixed or unfixed width/height
* properties depending on whether we've got a context.
*
* See below for why we use this.
*
* We should actually do this stuff at the end, like in riff-media.c,
* but I'm too lazy today. Maybe later.
*/
static GstCaps *
gst_ff_vid_caps_new (AVCodecContext * context, const char *mimetype,
const char *fieldname, ...)
{
GstStructure *structure = NULL;
GstCaps *caps = NULL;
va_list var_args;
if (context != NULL) {
caps = gst_caps_new_simple (mimetype,
"width", G_TYPE_INT, context->width,
"height", G_TYPE_INT, context->height,
"framerate", GST_TYPE_FRACTION,
(gint) context->frame_rate, (gint) context->frame_rate_base, NULL);
} else {
caps = gst_caps_new_simple (mimetype,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
}
structure = gst_caps_get_structure (caps, 0);
if (structure) {
va_start (var_args, fieldname);
gst_structure_set_valist (structure, fieldname, var_args);
va_end (var_args);
}
return caps;
}
/* same for audio - now with channels/sample rate
*/
static GstCaps *
gst_ff_aud_caps_new (AVCodecContext * context, const char *mimetype,
const char *fieldname, ...)
{
GstCaps *caps = NULL;
GstStructure *structure = NULL;
va_list var_args;
if (context != NULL) {
caps = gst_caps_new_simple (mimetype,
"rate", G_TYPE_INT, context->sample_rate,
"channels", G_TYPE_INT, context->channels, NULL);
} else {
caps = gst_caps_new_simple (mimetype, NULL);
}
structure = gst_caps_get_structure (caps, 0);
if (structure) {
va_start (var_args, fieldname);
gst_structure_set_valist (structure, fieldname, var_args);
va_end (var_args);
}
return caps;
}
/* Convert a FFMPEG Pixel Format and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* See below for usefulness
*/
static GstCaps *
gst_ffmpeg_pixfmt_to_caps (enum PixelFormat pix_fmt, AVCodecContext * context)
{
GstCaps *caps = NULL;
int bpp = 0, depth = 0, endianness = 0;
gulong g_mask = 0, r_mask = 0, b_mask = 0, a_mask = 0;
guint32 fmt = 0;
switch (pix_fmt) {
case PIX_FMT_YUV420P:
fmt = GST_MAKE_FOURCC ('I', '4', '2', '0');
break;
case PIX_FMT_YVU420P:
fmt = GST_MAKE_FOURCC ('Y', 'V', '1', '2');
break;
case PIX_FMT_YUV422:
fmt = GST_MAKE_FOURCC ('Y', 'U', 'Y', '2');
break;
case PIX_FMT_UYVY422:
fmt = GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y');
break;
case PIX_FMT_RGB24:
bpp = depth = 24;
endianness = G_BIG_ENDIAN;
r_mask = 0xff0000;
g_mask = 0x00ff00;
b_mask = 0x0000ff;
break;
case PIX_FMT_BGR24:
bpp = depth = 24;
endianness = G_BIG_ENDIAN;
r_mask = 0x0000ff;
g_mask = 0x00ff00;
b_mask = 0xff0000;
break;
case PIX_FMT_YUV422P:
fmt = GST_MAKE_FOURCC ('Y', '4', '2', 'B');
break;
case PIX_FMT_YUV444P:
fmt = GST_MAKE_FOURCC ('Y', '4', '4', '4');
break;
case PIX_FMT_RGB32:
bpp = 32;
depth = 24;
endianness = G_BIG_ENDIAN;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
r_mask = 0x00ff0000;
g_mask = 0x0000ff00;
b_mask = 0x000000ff;
#else
r_mask = 0x0000ff00;
g_mask = 0x00ff0000;
b_mask = 0xff000000;
#endif
break;
case PIX_FMT_BGR32:
bpp = 32;
depth = 24;
endianness = G_BIG_ENDIAN;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
r_mask = 0x0000ff00;
g_mask = 0x00ff0000;
b_mask = 0xff000000;
#else
r_mask = 0x00ff0000;
g_mask = 0x0000ff00;
b_mask = 0x000000ff;
#endif
break;
case PIX_FMT_RGBA32:
bpp = 32;
depth = 32;
endianness = G_BIG_ENDIAN;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
r_mask = 0x00ff0000;
g_mask = 0x0000ff00;
b_mask = 0x000000ff;
a_mask = 0xff000000;
#else
r_mask = 0x0000ff00;
g_mask = 0x00ff0000;
b_mask = 0xff000000;
a_mask = 0x000000ff;
#endif
break;
case PIX_FMT_BGRA32:
bpp = 32;
depth = 32;
endianness = G_BIG_ENDIAN;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
r_mask = 0x0000ff00;
g_mask = 0x00ff0000;
b_mask = 0xff000000;
a_mask = 0x000000ff;
#else
r_mask = 0x00ff0000;
g_mask = 0x0000ff00;
b_mask = 0x000000ff;
a_mask = 0xff000000;
#endif
break;
case PIX_FMT_YUV410P:
fmt = GST_MAKE_FOURCC ('Y', 'U', 'V', '9');
break;
case PIX_FMT_YVU410P:
fmt = GST_MAKE_FOURCC ('Y', 'V', 'U', '9');
break;
case PIX_FMT_YUV411P:
fmt = GST_MAKE_FOURCC ('Y', '4', '1', 'B');
break;
case PIX_FMT_RGB565:
bpp = depth = 16;
endianness = G_BYTE_ORDER;
r_mask = 0xf800;
g_mask = 0x07e0;
b_mask = 0x001f;
break;
case PIX_FMT_RGB555:
bpp = 16;
depth = 15;
endianness = G_BYTE_ORDER;
r_mask = 0x7c00;
g_mask = 0x03e0;
b_mask = 0x001f;
break;
case PIX_FMT_PAL8:
bpp = depth = 8;
endianness = G_BYTE_ORDER;
break;
case PIX_FMT_AYUV4444:
fmt = GST_MAKE_FOURCC ('A', 'Y', 'U', 'V');
break;
case PIX_FMT_GRAY8:
bpp = depth = 8;
caps = gst_ff_vid_caps_new (context, "video/x-raw-gray",
"bpp", G_TYPE_INT, bpp, "depth", G_TYPE_INT, depth, NULL);
break;
default:
/* give up ... */
break;
}
if (caps == NULL) {
if (bpp != 0) {
if (a_mask != 0) {
caps = gst_ff_vid_caps_new (context, "video/x-raw-rgb",
"bpp", G_TYPE_INT, bpp,
"depth", G_TYPE_INT, depth,
"red_mask", G_TYPE_INT, r_mask,
"green_mask", G_TYPE_INT, g_mask,
"blue_mask", G_TYPE_INT, b_mask,
"alpha_mask", G_TYPE_INT, a_mask,
"endianness", G_TYPE_INT, endianness, NULL);
} else if (r_mask != 0) {
caps = gst_ff_vid_caps_new (context, "video/x-raw-rgb",
"bpp", G_TYPE_INT, bpp,
"depth", G_TYPE_INT, depth,
"red_mask", G_TYPE_INT, r_mask,
"green_mask", G_TYPE_INT, g_mask,
"blue_mask", G_TYPE_INT, b_mask,
"endianness", G_TYPE_INT, endianness, NULL);
} else {
caps = gst_ff_vid_caps_new (context, "video/x-raw-rgb",
"bpp", G_TYPE_INT, bpp,
"depth", G_TYPE_INT, depth,
"endianness", G_TYPE_INT, endianness, NULL);
if (context) {
gst_ffmpeg_set_palette (caps, context);
}
}
} else if (fmt) {
caps = gst_ff_vid_caps_new (context, "video/x-raw-yuv",
"format", GST_TYPE_FOURCC, fmt, NULL);
}
}
if (caps != NULL) {
char *str = gst_caps_to_string (caps);
GST_DEBUG ("caps for pix_fmt=%d: %s", pix_fmt, str);
g_free (str);
} else {
GST_LOG ("No caps found for pix_fmt=%d", pix_fmt);
}
return caps;
}
/* Convert a FFMPEG Sample Format and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* See below for usefulness
*/
static GstCaps *
gst_ffmpeg_smpfmt_to_caps (enum SampleFormat sample_fmt,
AVCodecContext * context)
{
GstCaps *caps = NULL;
int bpp = 0;
gboolean signedness = FALSE;
switch (sample_fmt) {
case SAMPLE_FMT_S16:
signedness = TRUE;
bpp = 16;
break;
default:
/* .. */
break;
}
if (bpp) {
caps = gst_ff_aud_caps_new (context, "audio/x-raw-int",
"signed", G_TYPE_BOOLEAN, signedness,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"width", G_TYPE_INT, bpp, "depth", G_TYPE_INT, bpp, NULL);
}
if (caps != NULL) {
char *str = gst_caps_to_string (caps);
GST_DEBUG ("caps for sample_fmt=%d: %s", sample_fmt, str);
g_free (str);
} else {
GST_LOG ("No caps found for sample_fmt=%d", sample_fmt);
}
return caps;
}
/* Convert a FFMPEG codec Type and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
*
* CodecType is primarily meant for uncompressed data GstCaps!
*/
GstCaps *
gst_ffmpegcsp_codectype_to_caps (enum CodecType codec_type,
AVCodecContext * context)
{
GstCaps *caps;
switch (codec_type) {
case CODEC_TYPE_VIDEO:
if (context) {
caps = gst_ffmpeg_pixfmt_to_caps (context->pix_fmt,
context->width == -1 ? NULL : context);
} else {
GstCaps *temp;
enum PixelFormat i;
caps = gst_caps_new_empty ();
for (i = 0; i < PIX_FMT_NB; i++) {
temp = gst_ffmpeg_pixfmt_to_caps (i, NULL);
if (temp != NULL) {
gst_caps_append (caps, temp);
}
}
}
break;
case CODEC_TYPE_AUDIO:
if (context) {
caps = gst_ffmpeg_smpfmt_to_caps (context->sample_fmt, context);
} else {
GstCaps *temp;
enum SampleFormat i;
caps = gst_caps_new_empty ();
for (i = 0; i <= SAMPLE_FMT_S16; i++) {
temp = gst_ffmpeg_smpfmt_to_caps (i, NULL);
if (temp != NULL) {
gst_caps_append (caps, temp);
}
}
}
break;
default:
/* .. */
caps = NULL;
break;
}
return caps;
}
/* Convert a GstCaps (audio/raw) to a FFMPEG SampleFmt
* and other audio properties in a AVCodecContext.
*
* For usefulness, see below
*/
static void
gst_ffmpeg_caps_to_smpfmt (const GstCaps * caps,
AVCodecContext * context, gboolean raw)
{
GstStructure *structure;
gint depth = 0, width = 0, endianness = 0;
gboolean signedness = FALSE;
g_return_if_fail (gst_caps_get_size (caps) == 1);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "channels", &context->channels);
gst_structure_get_int (structure, "rate", &context->sample_rate);
if (!raw)
return;
if (gst_structure_get_int (structure, "width", &width) &&
gst_structure_get_int (structure, "depth", &depth) &&
gst_structure_get_int (structure, "signed", &signedness) &&
gst_structure_get_int (structure, "endianness", &endianness)) {
if (width == 16 && depth == 16 &&
endianness == G_BYTE_ORDER && signedness == TRUE) {
context->sample_fmt = SAMPLE_FMT_S16;
}
}
}
/* Convert a GstCaps (video/raw) to a FFMPEG PixFmt
* and other video properties in a AVCodecContext.
*
* For usefulness, see below
*/
static void
gst_ffmpeg_caps_to_pixfmt (const GstCaps * caps,
AVCodecContext * context, gboolean raw)
{
GstStructure *structure;
const GValue *fps;
gboolean ret;
g_return_if_fail (gst_caps_get_size (caps) == 1);
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", &context->width);
ret &= gst_structure_get_int (structure, "height", &context->height);
g_return_if_fail (ret == TRUE);
fps = gst_structure_get_value (structure, "framerate");
g_return_if_fail (GST_VALUE_HOLDS_FRACTION (fps));
/* framerate does not really matter */
context->frame_rate = gst_value_get_fraction_numerator (fps);
context->frame_rate_base = gst_value_get_fraction_denominator (fps);
if (!raw)
return;
if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
guint32 fourcc;
if (gst_structure_get_fourcc (structure, "format", &fourcc)) {
switch (fourcc) {
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
context->pix_fmt = PIX_FMT_YUV422;
break;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
context->pix_fmt = PIX_FMT_UYVY422;
break;
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
context->pix_fmt = PIX_FMT_YUV420P;
break;
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
context->pix_fmt = PIX_FMT_YVU420P;
break;
case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
context->pix_fmt = PIX_FMT_YUV411P;
break;
case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
context->pix_fmt = PIX_FMT_YUV422P;
break;
case GST_MAKE_FOURCC ('Y', 'U', 'V', '9'):
context->pix_fmt = PIX_FMT_YUV410P;
break;
case GST_MAKE_FOURCC ('Y', 'V', 'U', '9'):
context->pix_fmt = PIX_FMT_YVU410P;
break;
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
context->pix_fmt = PIX_FMT_AYUV4444;
break;
case GST_MAKE_FOURCC ('Y', '4', '4', '4'):
context->pix_fmt = PIX_FMT_YUV444P;
break;
}
}
} else if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
gint bpp = 0, rmask = 0, endianness = 0, amask = 0, depth = 0;
if (gst_structure_get_int (structure, "bpp", &bpp) &&
gst_structure_get_int (structure, "endianness", &endianness)) {
if (gst_structure_get_int (structure, "red_mask", &rmask)) {
switch (bpp) {
case 32:
if (gst_structure_get_int (structure, "alpha_mask", &amask)) {
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
if (rmask == 0x0000ff00)
#else
if (rmask == 0x00ff0000)
#endif
context->pix_fmt = PIX_FMT_BGRA32;
else
context->pix_fmt = PIX_FMT_RGBA32;
} else {
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
if (rmask == 0x00ff0000)
#else
if (rmask == 0x0000ff00)
#endif
context->pix_fmt = PIX_FMT_RGB32;
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
if (rmask == 0x0000ff00)
#else
if (rmask == 0x00ff0000)
#endif
context->pix_fmt = PIX_FMT_BGR32;
}
break;
case 24:
if (rmask == 0x0000FF)
context->pix_fmt = PIX_FMT_BGR24;
else
context->pix_fmt = PIX_FMT_RGB24;
break;
case 16:
if (endianness == G_BYTE_ORDER) {
context->pix_fmt = PIX_FMT_RGB565;
if (gst_structure_get_int (structure, "depth", &depth)) {
if (depth == 15)
context->pix_fmt = PIX_FMT_RGB555;
}
}
break;
case 15:
if (endianness == G_BYTE_ORDER)
context->pix_fmt = PIX_FMT_RGB555;
break;
default:
/* nothing */
break;
}
} else {
if (bpp == 8) {
context->pix_fmt = PIX_FMT_PAL8;
gst_ffmpeg_get_palette (caps, context);
}
}
}
} else if (gst_structure_has_name (structure, "video/x-raw-gray")) {
gint bpp = 0;
if (gst_structure_get_int (structure, "bpp", &bpp)) {
switch (bpp) {
case 8:
context->pix_fmt = PIX_FMT_GRAY8;
break;
}
}
}
}
/* Convert a GstCaps and a FFMPEG codec Type to a
* AVCodecContext. If the context is ommitted, no fixed values
* for video/audio size will be included in the context
*
* CodecType is primarily meant for uncompressed data GstCaps!
*/
void
gst_ffmpegcsp_caps_with_codectype (enum CodecType type,
const GstCaps * caps, AVCodecContext * context)
{
if (context == NULL)
return;
switch (type) {
case CODEC_TYPE_VIDEO:
gst_ffmpeg_caps_to_pixfmt (caps, context, TRUE);
break;
case CODEC_TYPE_AUDIO:
gst_ffmpeg_caps_to_smpfmt (caps, context, TRUE);
break;
default:
/* unknown */
break;
}
}
#define GEN_MASK(x) ((1<<(x))-1)
#define ROUND_UP_X(v,x) (((v) + GEN_MASK(x)) & ~GEN_MASK(x))
#define DIV_ROUND_UP_X(v,x) (((v) + GEN_MASK(x)) >> (x))
/*
* Fill in pointers to memory in a AVPicture, where
* everything is aligned by 4 (as required by X).
* This is mostly a copy from imgconvert.c with some
* small changes.
*/
int
gst_ffmpegcsp_avpicture_fill (AVPicture * picture,
uint8_t * ptr, enum PixelFormat pix_fmt, int width, int height)
{
int size, w2, h2, size2;
int stride, stride2;
PixFmtInfo *pinfo;
pinfo = get_pix_fmt_info (pix_fmt);
switch (pix_fmt) {
case PIX_FMT_YUV420P:
case PIX_FMT_YUV422P:
case PIX_FMT_YUV444P:
case PIX_FMT_YUV410P:
case PIX_FMT_YUV411P:
case PIX_FMT_YUVJ420P:
case PIX_FMT_YUVJ422P:
case PIX_FMT_YUVJ444P:
stride = GST_ROUND_UP_4 (width);
h2 = ROUND_UP_X (height, pinfo->y_chroma_shift);
size = stride * h2;
w2 = DIV_ROUND_UP_X (width, pinfo->x_chroma_shift);
stride2 = GST_ROUND_UP_4 (w2);
h2 = DIV_ROUND_UP_X (height, pinfo->y_chroma_shift);
size2 = stride2 * h2;
picture->data[0] = ptr;
picture->data[1] = picture->data[0] + size;
picture->data[2] = picture->data[1] + size2;
picture->linesize[0] = stride;
picture->linesize[1] = stride2;
picture->linesize[2] = stride2;
return size + 2 * size2;
/* PIX_FMT_YVU420P = YV12: same as PIX_FMT_YUV420P, but
* with U and V plane swapped. Strides as in videotestsrc */
case PIX_FMT_YVU410P:
case PIX_FMT_YVU420P:
stride = GST_ROUND_UP_4 (width);
h2 = ROUND_UP_X (height, pinfo->y_chroma_shift);
size = stride * h2;
w2 = DIV_ROUND_UP_X (width, pinfo->x_chroma_shift);
stride2 = GST_ROUND_UP_4 (w2);
h2 = DIV_ROUND_UP_X (height, pinfo->y_chroma_shift);
size2 = stride2 * h2;
picture->data[0] = ptr;
picture->data[2] = picture->data[0] + size;
picture->data[1] = picture->data[2] + size2;
picture->linesize[0] = stride;
picture->linesize[1] = stride2;
picture->linesize[2] = stride2;
return size + 2 * size2;
case PIX_FMT_RGB24:
case PIX_FMT_BGR24:
stride = GST_ROUND_UP_4 (width * 3);
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->linesize[0] = stride;
return size;
case PIX_FMT_AYUV4444:
case PIX_FMT_RGB32:
case PIX_FMT_RGBA32:
case PIX_FMT_BGR32:
case PIX_FMT_BGRA32:
stride = width * 4;
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->linesize[0] = stride;
return size;
case PIX_FMT_RGB555:
case PIX_FMT_RGB565:
case PIX_FMT_YUV422:
case PIX_FMT_UYVY422:
stride = GST_ROUND_UP_4 (width * 2);
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->linesize[0] = stride;
return size;
case PIX_FMT_UYVY411:
/* FIXME, probably not the right stride */
stride = GST_ROUND_UP_4 (width);
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->linesize[0] = width + width / 2;
return size + size / 2;
case PIX_FMT_GRAY8:
stride = GST_ROUND_UP_4 (width);
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->linesize[0] = stride;
return size;
case PIX_FMT_MONOWHITE:
case PIX_FMT_MONOBLACK:
stride = GST_ROUND_UP_4 ((width + 7) >> 3);
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->linesize[0] = stride;
return size;
case PIX_FMT_PAL8:
/* already forced to be with stride, so same result as other function */
stride = GST_ROUND_UP_4 (width);
size = stride * height;
picture->data[0] = ptr;
picture->data[1] = ptr + size; /* palette is stored here as 256 32 bit words */
picture->data[2] = NULL;
picture->linesize[0] = stride;
picture->linesize[1] = 4;
return size + 256 * 4;
default:
picture->data[0] = NULL;
picture->data[1] = NULL;
picture->data[2] = NULL;
picture->data[3] = NULL;
return -1;
}
return 0;
}
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