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[client] added initial decoder framework

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Geoffrey McRae
2017-12-29 22:48:21 +11:00
parent c239306d82
commit 076a45acc5
7 changed files with 349 additions and 11 deletions
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110
client/decoders/h264.c Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "lg-decoder.h"
#include "debug.h"
#include <stdlib.h>
#include <string.h>
struct Inst
{
bool initialized;
LG_RendererFormat format;
};
static bool lgd_h264_create (void ** opaque);
static void lgd_h264_destroy (void * opaque);
static bool lgd_h264_initialize (void * opaque, const LG_RendererFormat format);
static void lgd_h264_deinitialize (void * opaque);
static LG_OutFormat lgd_h264_get_out_format (void * opaque);
static unsigned int lgd_h264_get_frame_pitch(void * opaque);
static bool lgd_h264_decode(void * opaque, uint8_t * dst, size_t dstSize, const uint8_t * src, size_t srcSize);
static bool lgd_h264_create(void ** opaque)
{
// create our local storage
*opaque = malloc(sizeof(struct Inst));
if (!*opaque)
{
DEBUG_INFO("Failed to allocate %lu bytes", sizeof(struct Inst));
return false;
}
memset(*opaque, 0, sizeof(struct Inst));
//struct Inst * this = (struct Inst *)*opaque;
return true;
}
static void lgd_h264_destroy(void * opaque)
{
struct Inst * this = (struct Inst *)opaque;
lgd_h264_deinitialize(opaque);
free(this);
}
static bool lgd_h264_initialize(void * opaque, const LG_RendererFormat format)
{
struct Inst * this = (struct Inst *)opaque;
if (this->initialized)
lgd_h264_deinitialize(opaque);
memcpy(&this->format, &format, sizeof(LG_RendererFormat));
return true;
}
static void lgd_h264_deinitialize(void * opaque)
{
struct Inst * this = (struct Inst *)opaque;
if (!this->initialized)
return;
memset(this, 0, sizeof(struct Inst));
}
static LG_OutFormat lgd_h264_get_out_format(void * opaque)
{
return LG_OUTPUT_BGRA;
}
static unsigned int lgd_h264_get_frame_pitch(void * opaque)
{
struct Inst * this = (struct Inst *)opaque;
return this->format.width * 4;
}
static bool lgd_h264_decode(void * opaque, uint8_t * dst, size_t dstSize, const uint8_t * src, size_t srcSize)
{
return true;
}
const LG_Decoder LGD_H264 =
{
.name = "H.264",
.create = lgd_h264_create,
.destroy = lgd_h264_destroy,
.initialize = lgd_h264_initialize,
.deinitialize = lgd_h264_deinitialize,
.get_out_format = lgd_h264_get_out_format,
.get_frame_pitch = lgd_h264_get_frame_pitch,
.decode = lgd_h264_decode
};