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vpx/vp8/vp8_dx_iface.c
Dmitry Kovalev 26cec5c13f Basic encryption feature for libvpx. 
New decoder control paramter VP8_SET_DECRYPT_KEY to set the decryption key.

Change-Id: I6fc1f44d41f74f3b3f702778af1a6f8f5cc9439f
2013-03-15 18:21:55 -07:00

1018 lines
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/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <stdlib.h>
#include <string.h>
#include "vp8_rtcd.h"
#include "vpx/vpx_decoder.h"
#include "vpx/vp8dx.h"
#include "vpx/internal/vpx_codec_internal.h"
#include "vpx_version.h"
#include "common/onyxd.h"
#include "decoder/onyxd_int.h"
#include "common/alloccommon.h"
#include "vpx_mem/vpx_mem.h"
#if CONFIG_ERROR_CONCEALMENT
#include "decoder/error_concealment.h"
#endif
#include "decoder/decoderthreading.h"
#define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
#define VP8_CAP_ERROR_CONCEALMENT (CONFIG_ERROR_CONCEALMENT ? \
VPX_CODEC_CAP_ERROR_CONCEALMENT : 0)
#define VP8_DECRYPT_KEY_SIZE 32
typedef vpx_codec_stream_info_t vp8_stream_info_t;
/* Structures for handling memory allocations */
typedef enum
{
VP8_SEG_ALG_PRIV = 256,
VP8_SEG_MAX
} mem_seg_id_t;
#define NELEMENTS(x) ((int)(sizeof(x)/sizeof(x[0])))
static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t);
typedef struct
{
unsigned int id;
unsigned long sz;
unsigned int align;
unsigned int flags;
unsigned long(*calc_sz)(const vpx_codec_dec_cfg_t *, vpx_codec_flags_t);
} mem_req_t;
static const mem_req_t vp8_mem_req_segs[] =
{
{VP8_SEG_ALG_PRIV, 0, 8, VPX_CODEC_MEM_ZERO, vp8_priv_sz},
{VP8_SEG_MAX, 0, 0, 0, NULL}
};
struct vpx_codec_alg_priv
{
vpx_codec_priv_t base;
vpx_codec_mmap_t mmaps[NELEMENTS(vp8_mem_req_segs)-1];
vpx_codec_dec_cfg_t cfg;
vp8_stream_info_t si;
int defer_alloc;
int decoder_init;
int postproc_cfg_set;
vp8_postproc_cfg_t postproc_cfg;
#if CONFIG_POSTPROC_VISUALIZER
unsigned int dbg_postproc_flag;
int dbg_color_ref_frame_flag;
int dbg_color_mb_modes_flag;
int dbg_color_b_modes_flag;
int dbg_display_mv_flag;
#endif
unsigned char decrypt_key[VP8_DECRYPT_KEY_SIZE];
vpx_image_t img;
int img_setup;
struct frame_buffers yv12_frame_buffers;
void *user_priv;
FRAGMENT_DATA fragments;
};
static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t flags)
{
/* Although this declaration is constant, we can't use it in the requested
* segments list because we want to define the requested segments list
* before defining the private type (so that the number of memory maps is
* known)
*/
(void)si;
return sizeof(vpx_codec_alg_priv_t);
}
static void vp8_mmap_dtor(vpx_codec_mmap_t *mmap)
{
free(mmap->priv);
}
static vpx_codec_err_t vp8_mmap_alloc(vpx_codec_mmap_t *mmap)
{
vpx_codec_err_t res;
unsigned int align;
align = mmap->align ? mmap->align - 1 : 0;
if (mmap->flags & VPX_CODEC_MEM_ZERO)
mmap->priv = calloc(1, mmap->sz + align);
else
mmap->priv = malloc(mmap->sz + align);
res = (mmap->priv) ? VPX_CODEC_OK : VPX_CODEC_MEM_ERROR;
mmap->base = (void *)((((uintptr_t)mmap->priv) + align) & ~(uintptr_t)align);
mmap->dtor = vp8_mmap_dtor;
return res;
}
static vpx_codec_err_t vp8_validate_mmaps(const vp8_stream_info_t *si,
const vpx_codec_mmap_t *mmaps,
vpx_codec_flags_t init_flags)
{
int i;
vpx_codec_err_t res = VPX_CODEC_OK;
for (i = 0; i < NELEMENTS(vp8_mem_req_segs) - 1; i++)
{
/* Ensure the segment has been allocated */
if (!mmaps[i].base)
{
res = VPX_CODEC_MEM_ERROR;
break;
}
/* Verify variable size segment is big enough for the current si. */
if (vp8_mem_req_segs[i].calc_sz)
{
vpx_codec_dec_cfg_t cfg;
cfg.w = si->w;
cfg.h = si->h;
if (mmaps[i].sz < vp8_mem_req_segs[i].calc_sz(&cfg, init_flags))
{
res = VPX_CODEC_MEM_ERROR;
break;
}
}
}
return res;
}
static const unsigned char fake_decrypt_key[VP8_DECRYPT_KEY_SIZE] = { 0 };
static void vp8_init_ctx(vpx_codec_ctx_t *ctx, const vpx_codec_mmap_t *mmap)
{
int i;
ctx->priv = mmap->base;
ctx->priv->sz = sizeof(*ctx->priv);
ctx->priv->iface = ctx->iface;
ctx->priv->alg_priv = mmap->base;
for (i = 0; i < NELEMENTS(ctx->priv->alg_priv->mmaps); i++)
ctx->priv->alg_priv->mmaps[i].id = vp8_mem_req_segs[i].id;
ctx->priv->alg_priv->mmaps[0] = *mmap;
ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si);
memcpy(ctx->priv->alg_priv->decrypt_key, fake_decrypt_key,
VP8_DECRYPT_KEY_SIZE);
ctx->priv->init_flags = ctx->init_flags;
if (ctx->config.dec)
{
/* Update the reference to the config structure to an internal copy. */
ctx->priv->alg_priv->cfg = *ctx->config.dec;
ctx->config.dec = &ctx->priv->alg_priv->cfg;
}
}
static void *mmap_lkup(vpx_codec_alg_priv_t *ctx, unsigned int id)
{
int i;
for (i = 0; i < NELEMENTS(ctx->mmaps); i++)
if (ctx->mmaps[i].id == id)
return ctx->mmaps[i].base;
return NULL;
}
static void vp8_finalize_mmaps(vpx_codec_alg_priv_t *ctx)
{
/* nothing to clean up */
}
static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
vpx_codec_priv_enc_mr_cfg_t *data)
{
vpx_codec_err_t res = VPX_CODEC_OK;
(void) data;
vp8_rtcd();
/* This function only allocates space for the vpx_codec_alg_priv_t
* structure. More memory may be required at the time the stream
* information becomes known.
*/
if (!ctx->priv)
{
vpx_codec_mmap_t mmap;
mmap.id = vp8_mem_req_segs[0].id;
mmap.sz = sizeof(vpx_codec_alg_priv_t);
mmap.align = vp8_mem_req_segs[0].align;
mmap.flags = vp8_mem_req_segs[0].flags;
res = vp8_mmap_alloc(&mmap);
if (res != VPX_CODEC_OK) return res;
vp8_init_ctx(ctx, &mmap);
/* initialize number of fragments to zero */
ctx->priv->alg_priv->fragments.count = 0;
/* is input fragments enabled? */
ctx->priv->alg_priv->fragments.enabled =
(ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_INPUT_FRAGMENTS);
ctx->priv->alg_priv->defer_alloc = 1;
/*post processing level initialized to do nothing */
}
ctx->priv->alg_priv->yv12_frame_buffers.use_frame_threads =
(ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_FRAME_THREADING);
/* for now, disable frame threading */
ctx->priv->alg_priv->yv12_frame_buffers.use_frame_threads = 0;
if(ctx->priv->alg_priv->yv12_frame_buffers.use_frame_threads &&
(( ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_ERROR_CONCEALMENT)
|| ( ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_INPUT_FRAGMENTS) ) )
{
/* row-based threading, error concealment, and input fragments will
* not be supported when using frame-based threading */
res = VPX_CODEC_INVALID_PARAM;
}
return res;
}
static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx)
{
int i;
vp8_remove_decoder_instances(&ctx->yv12_frame_buffers);
for (i = NELEMENTS(ctx->mmaps) - 1; i >= 0; i--)
{
if (ctx->mmaps[i].dtor)
ctx->mmaps[i].dtor(&ctx->mmaps[i]);
}
return VPX_CODEC_OK;
}
static vpx_codec_err_t vp8_peek_si_external(const uint8_t *data,
unsigned int data_sz,
vpx_codec_stream_info_t *si,
const unsigned char *decrypt_key)
{
vpx_codec_err_t res = VPX_CODEC_OK;
if(data + data_sz <= data)
{
res = VPX_CODEC_INVALID_PARAM;
}
else
{
/* Parse uncompresssed part of key frame header.
* 3 bytes:- including version, frame type and an offset
* 3 bytes:- sync code (0x9d, 0x01, 0x2a)
* 4 bytes:- including image width and height in the lowest 14 bits
* of each 2-byte value.
*/
const uint8_t data0 = decrypt_byte(data, data, decrypt_key);
si->is_kf = 0;
if (data_sz >= 10 && !(data0 & 0x01)) /* I-Frame */
{
const uint8_t data3 = decrypt_byte(data + 3, data, decrypt_key);
const uint8_t data4 = decrypt_byte(data + 4, data, decrypt_key);
const uint8_t data5 = decrypt_byte(data + 5, data, decrypt_key);
const uint8_t data6 = decrypt_byte(data + 6, data, decrypt_key);
const uint8_t data7 = decrypt_byte(data + 7, data, decrypt_key);
const uint8_t data8 = decrypt_byte(data + 8, data, decrypt_key);
const uint8_t data9 = decrypt_byte(data + 9, data, decrypt_key);
si->is_kf = 1;
/* vet via sync code */
if (data3 != 0x9d || data4 != 0x01 || data5 != 0x2a)
res = VPX_CODEC_UNSUP_BITSTREAM;
si->w = (data6 | (data7 << 8)) & 0x3fff;
si->h = (data8 | (data9 << 8)) & 0x3fff;
/*printf("w=%d, h=%d\n", si->w, si->h);*/
if (!(si->h | si->w))
res = VPX_CODEC_UNSUP_BITSTREAM;
}
else
{
res = VPX_CODEC_UNSUP_BITSTREAM;
}
}
return res;
}
static vpx_codec_err_t vp8_peek_si(const uint8_t *data,
unsigned int data_sz,
vpx_codec_stream_info_t *si) {
return vp8_peek_si_external(data, data_sz, si, fake_decrypt_key);
}
static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t *ctx,
vpx_codec_stream_info_t *si)
{
unsigned int sz;
if (si->sz >= sizeof(vp8_stream_info_t))
sz = sizeof(vp8_stream_info_t);
else
sz = sizeof(vpx_codec_stream_info_t);
memcpy(si, &ctx->si, sz);
si->sz = sz;
return VPX_CODEC_OK;
}
static vpx_codec_err_t
update_error_state(vpx_codec_alg_priv_t *ctx,
const struct vpx_internal_error_info *error)
{
vpx_codec_err_t res;
if ((res = error->error_code))
ctx->base.err_detail = error->has_detail
? error->detail
: NULL;
return res;
}
static void yuvconfig2image(vpx_image_t *img,
const YV12_BUFFER_CONFIG *yv12,
void *user_priv)
{
/** vpx_img_wrap() doesn't allow specifying independent strides for
* the Y, U, and V planes, nor other alignment adjustments that
* might be representable by a YV12_BUFFER_CONFIG, so we just
* initialize all the fields.*/
img->fmt = yv12->clrtype == REG_YUV ?
VPX_IMG_FMT_I420 : VPX_IMG_FMT_VPXI420;
img->w = yv12->y_stride;
img->h = (yv12->y_height + 2 * VP8BORDERINPIXELS + 15) & ~15;
img->d_w = yv12->y_width;
img->d_h = yv12->y_height;
img->x_chroma_shift = 1;
img->y_chroma_shift = 1;
img->planes[VPX_PLANE_Y] = yv12->y_buffer;
img->planes[VPX_PLANE_U] = yv12->u_buffer;
img->planes[VPX_PLANE_V] = yv12->v_buffer;
img->planes[VPX_PLANE_ALPHA] = NULL;
img->stride[VPX_PLANE_Y] = yv12->y_stride;
img->stride[VPX_PLANE_U] = yv12->uv_stride;
img->stride[VPX_PLANE_V] = yv12->uv_stride;
img->stride[VPX_PLANE_ALPHA] = yv12->y_stride;
img->bps = 12;
img->user_priv = user_priv;
img->img_data = yv12->buffer_alloc;
img->img_data_owner = 0;
img->self_allocd = 0;
}
static int
update_fragments(vpx_codec_alg_priv_t *ctx,
const uint8_t *data,
unsigned int data_sz,
vpx_codec_err_t *res)
{
*res = VPX_CODEC_OK;
if (ctx->fragments.count == 0)
{
/* New frame, reset fragment pointers and sizes */
vpx_memset((void*)ctx->fragments.ptrs, 0, sizeof(ctx->fragments.ptrs));
vpx_memset(ctx->fragments.sizes, 0, sizeof(ctx->fragments.sizes));
}
if (ctx->fragments.enabled && !(data == NULL && data_sz == 0))
{
/* Store a pointer to this fragment and return. We haven't
* received the complete frame yet, so we will wait with decoding.
*/
ctx->fragments.ptrs[ctx->fragments.count] = data;
ctx->fragments.sizes[ctx->fragments.count] = data_sz;
ctx->fragments.count++;
if (ctx->fragments.count > (1 << EIGHT_PARTITION) + 1)
{
ctx->fragments.count = 0;
*res = VPX_CODEC_INVALID_PARAM;
return -1;
}
return 0;
}
if (!ctx->fragments.enabled)
{
ctx->fragments.ptrs[0] = data;
ctx->fragments.sizes[0] = data_sz;
ctx->fragments.count = 1;
}
return 1;
}
static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx,
const uint8_t *data,
unsigned int data_sz,
void *user_priv,
long deadline)
{
vpx_codec_err_t res = VPX_CODEC_OK;
unsigned int resolution_change = 0;
unsigned int w, h;
/* Update the input fragment data */
if(update_fragments(ctx, data, data_sz, &res) <= 0)
return res;
/* Determine the stream parameters. Note that we rely on peek_si to
* validate that we have a buffer that does not wrap around the top
* of the heap.
*/
w = ctx->si.w;
h = ctx->si.h;
res = vp8_peek_si_external(ctx->fragments.ptrs[0],
ctx->fragments.sizes[0],
&ctx->si,
ctx->decrypt_key);
if((res == VPX_CODEC_UNSUP_BITSTREAM) && !ctx->si.is_kf)
{
/* the peek function returns an error for non keyframes, however for
* this case, it is not an error */
res = VPX_CODEC_OK;
}
if(!ctx->decoder_init && !ctx->si.is_kf)
res = VPX_CODEC_UNSUP_BITSTREAM;
if ((ctx->si.h != h) || (ctx->si.w != w))
resolution_change = 1;
/* Perform deferred allocations, if required */
if (!res && ctx->defer_alloc)
{
int i;
for (i = 1; !res && i < NELEMENTS(ctx->mmaps); i++)
{
vpx_codec_dec_cfg_t cfg;
cfg.w = ctx->si.w;
cfg.h = ctx->si.h;
ctx->mmaps[i].id = vp8_mem_req_segs[i].id;
ctx->mmaps[i].sz = vp8_mem_req_segs[i].sz;
ctx->mmaps[i].align = vp8_mem_req_segs[i].align;
ctx->mmaps[i].flags = vp8_mem_req_segs[i].flags;
if (!ctx->mmaps[i].sz)
ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg,
ctx->base.init_flags);
res = vp8_mmap_alloc(&ctx->mmaps[i]);
}
if (!res)
vp8_finalize_mmaps(ctx);
ctx->defer_alloc = 0;
}
/* Initialize the decoder instance on the first frame*/
if (!res && !ctx->decoder_init)
{
res = vp8_validate_mmaps(&ctx->si, ctx->mmaps, ctx->base.init_flags);
if (!res)
{
VP8D_CONFIG oxcf;
oxcf.Width = ctx->si.w;
oxcf.Height = ctx->si.h;
oxcf.Version = 9;
oxcf.postprocess = 0;
oxcf.max_threads = ctx->cfg.threads;
oxcf.error_concealment =
(ctx->base.init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT);
/* If postprocessing was enabled by the application and a
* configuration has not been provided, default it.
*/
if (!ctx->postproc_cfg_set
&& (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC))
{
ctx->postproc_cfg.post_proc_flag =
VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE;
ctx->postproc_cfg.deblocking_level = 4;
ctx->postproc_cfg.noise_level = 0;
}
res = vp8_create_decoder_instances(&ctx->yv12_frame_buffers, &oxcf);
ctx->yv12_frame_buffers.pbi[0]->decrypt_key = ctx->decrypt_key;
}
ctx->decoder_init = 1;
}
if (!res)
{
VP8D_COMP *pbi = ctx->yv12_frame_buffers.pbi[0];
if(resolution_change)
{
VP8_COMMON *const pc = & pbi->common;
MACROBLOCKD *const xd = & pbi->mb;
#if CONFIG_MULTITHREAD
int i;
#endif
pc->Width = ctx->si.w;
pc->Height = ctx->si.h;
{
int prev_mb_rows = pc->mb_rows;
if (setjmp(pbi->common.error.jmp))
{
pbi->common.error.setjmp = 0;
/* same return value as used in vp8dx_receive_compressed_data */
return -1;
}
pbi->common.error.setjmp = 1;
if (pc->Width <= 0)
{
pc->Width = w;
vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
"Invalid frame width");
}
if (pc->Height <= 0)
{
pc->Height = h;
vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
"Invalid frame height");
}
if (vp8_alloc_frame_buffers(pc, pc->Width, pc->Height))
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate frame buffers");
xd->pre = pc->yv12_fb[pc->lst_fb_idx];
xd->dst = pc->yv12_fb[pc->new_fb_idx];
#if CONFIG_MULTITHREAD
for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
{
pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx];
vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd);
}
#endif
vp8_build_block_doffsets(&pbi->mb);
/* allocate memory for last frame MODE_INFO array */
#if CONFIG_ERROR_CONCEALMENT
if (pbi->ec_enabled)
{
/* old prev_mip was released by vp8_de_alloc_frame_buffers()
* called in vp8_alloc_frame_buffers() */
pc->prev_mip = vpx_calloc(
(pc->mb_cols + 1) * (pc->mb_rows + 1),
sizeof(MODE_INFO));
if (!pc->prev_mip)
{
vp8_de_alloc_frame_buffers(pc);
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate"
"last frame MODE_INFO array");
}
pc->prev_mi = pc->prev_mip + pc->mode_info_stride + 1;
if (vp8_alloc_overlap_lists(pbi))
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate overlap lists "
"for error concealment");
}
#endif
#if CONFIG_MULTITHREAD
if (pbi->b_multithreaded_rd)
vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows);
#else
(void)prev_mb_rows;
#endif
}
pbi->common.error.setjmp = 0;
/* required to get past the first get_free_fb() call */
pbi->common.fb_idx_ref_cnt[0] = 0;
}
/* update the pbi fragment data */
pbi->fragments = ctx->fragments;
ctx->user_priv = user_priv;
if (vp8dx_receive_compressed_data(pbi, data_sz, data, deadline))
{
res = update_error_state(ctx, &pbi->common.error);
}
/* get ready for the next series of fragments */
ctx->fragments.count = 0;
}
return res;
}
static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx,
vpx_codec_iter_t *iter)
{
vpx_image_t *img = NULL;
/* iter acts as a flip flop, so an image is only returned on the first
* call to get_frame.
*/
if (!(*iter))
{
YV12_BUFFER_CONFIG sd;
int64_t time_stamp = 0, time_end_stamp = 0;
vp8_ppflags_t flags = {0};
if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
{
flags.post_proc_flag= ctx->postproc_cfg.post_proc_flag
#if CONFIG_POSTPROC_VISUALIZER
| ((ctx->dbg_color_ref_frame_flag != 0) ? VP8D_DEBUG_CLR_FRM_REF_BLKS : 0)
| ((ctx->dbg_color_mb_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0)
| ((ctx->dbg_color_b_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0)
| ((ctx->dbg_display_mv_flag != 0) ? VP8D_DEBUG_DRAW_MV : 0)
#endif
;
flags.deblocking_level = ctx->postproc_cfg.deblocking_level;
flags.noise_level = ctx->postproc_cfg.noise_level;
#if CONFIG_POSTPROC_VISUALIZER
flags.display_ref_frame_flag= ctx->dbg_color_ref_frame_flag;
flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag;
flags.display_b_modes_flag = ctx->dbg_color_b_modes_flag;
flags.display_mv_flag = ctx->dbg_display_mv_flag;
#endif
}
if (0 == vp8dx_get_raw_frame(ctx->yv12_frame_buffers.pbi[0], &sd,
&time_stamp, &time_end_stamp, &flags))
{
yuvconfig2image(&ctx->img, &sd, ctx->user_priv);
img = &ctx->img;
*iter = img;
}
}
return img;
}
static
vpx_codec_err_t vp8_xma_get_mmap(const vpx_codec_ctx_t *ctx,
vpx_codec_mmap_t *mmap,
vpx_codec_iter_t *iter)
{
vpx_codec_err_t res;
const mem_req_t *seg_iter = *iter;
/* Get address of next segment request */
do
{
if (!seg_iter)
seg_iter = vp8_mem_req_segs;
else if (seg_iter->id != VP8_SEG_MAX)
seg_iter++;
*iter = (vpx_codec_iter_t)seg_iter;
if (seg_iter->id != VP8_SEG_MAX)
{
mmap->id = seg_iter->id;
mmap->sz = seg_iter->sz;
mmap->align = seg_iter->align;
mmap->flags = seg_iter->flags;
if (!seg_iter->sz)
mmap->sz = seg_iter->calc_sz(ctx->config.dec, ctx->init_flags);
res = VPX_CODEC_OK;
}
else
res = VPX_CODEC_LIST_END;
}
while (!mmap->sz && res != VPX_CODEC_LIST_END);
return res;
}
static vpx_codec_err_t vp8_xma_set_mmap(vpx_codec_ctx_t *ctx,
const vpx_codec_mmap_t *mmap)
{
vpx_codec_err_t res = VPX_CODEC_MEM_ERROR;
int i, done;
if (!ctx->priv)
{
if (mmap->id == VP8_SEG_ALG_PRIV)
{
if (!ctx->priv)
{
vp8_init_ctx(ctx, mmap);
res = VPX_CODEC_OK;
}
}
}
done = 1;
if (!res && ctx->priv->alg_priv)
{
for (i = 0; i < NELEMENTS(ctx->priv->alg_priv->mmaps); i++)
{
if (ctx->priv->alg_priv->mmaps[i].id == mmap->id)
if (!ctx->priv->alg_priv->mmaps[i].base)
{
ctx->priv->alg_priv->mmaps[i] = *mmap;
res = VPX_CODEC_OK;
}
done &= (ctx->priv->alg_priv->mmaps[i].base != NULL);
}
}
if (done && !res)
{
vp8_finalize_mmaps(ctx->priv->alg_priv);
res = ctx->iface->init(ctx, NULL);
}
return res;
}
static vpx_codec_err_t image2yuvconfig(const vpx_image_t *img,
YV12_BUFFER_CONFIG *yv12)
{
vpx_codec_err_t res = VPX_CODEC_OK;
yv12->y_buffer = img->planes[VPX_PLANE_Y];
yv12->u_buffer = img->planes[VPX_PLANE_U];
yv12->v_buffer = img->planes[VPX_PLANE_V];
yv12->y_width = img->d_w;
yv12->y_height = img->d_h;
yv12->uv_width = yv12->y_width / 2;
yv12->uv_height = yv12->y_height / 2;
yv12->y_stride = img->stride[VPX_PLANE_Y];
yv12->uv_stride = img->stride[VPX_PLANE_U];
yv12->border = (img->stride[VPX_PLANE_Y] - img->d_w) / 2;
yv12->clrtype = (img->fmt == VPX_IMG_FMT_VPXI420 || img->fmt == VPX_IMG_FMT_VPXYV12);
return res;
}
static vpx_codec_err_t vp8_set_reference(vpx_codec_alg_priv_t *ctx,
int ctr_id,
va_list args)
{
vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
if (data && !ctx->yv12_frame_buffers.use_frame_threads)
{
vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
YV12_BUFFER_CONFIG sd;
image2yuvconfig(&frame->img, &sd);
return vp8dx_set_reference(ctx->yv12_frame_buffers.pbi[0],
frame->frame_type, &sd);
}
else
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t vp8_get_reference(vpx_codec_alg_priv_t *ctx,
int ctr_id,
va_list args)
{
vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
if (data && !ctx->yv12_frame_buffers.use_frame_threads)
{
vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
YV12_BUFFER_CONFIG sd;
image2yuvconfig(&frame->img, &sd);
return vp8dx_get_reference(ctx->yv12_frame_buffers.pbi[0],
frame->frame_type, &sd);
}
else
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
int ctr_id,
va_list args)
{
#if CONFIG_POSTPROC
vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
if (data)
{
ctx->postproc_cfg_set = 1;
ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
return VPX_CODEC_OK;
}
else
return VPX_CODEC_INVALID_PARAM;
#else
return VPX_CODEC_INCAPABLE;
#endif
}
static vpx_codec_err_t vp8_set_dbg_options(vpx_codec_alg_priv_t *ctx,
int ctrl_id,
va_list args)
{
#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
int data = va_arg(args, int);
#define MAP(id, var) case id: var = data; break;
switch (ctrl_id)
{
MAP (VP8_SET_DBG_COLOR_REF_FRAME, ctx->dbg_color_ref_frame_flag);
MAP (VP8_SET_DBG_COLOR_MB_MODES, ctx->dbg_color_mb_modes_flag);
MAP (VP8_SET_DBG_COLOR_B_MODES, ctx->dbg_color_b_modes_flag);
MAP (VP8_SET_DBG_DISPLAY_MV, ctx->dbg_display_mv_flag);
}
return VPX_CODEC_OK;
#else
return VPX_CODEC_INCAPABLE;
#endif
}
static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
int ctrl_id,
va_list args)
{
int *update_info = va_arg(args, int *);
if (update_info && !ctx->yv12_frame_buffers.use_frame_threads)
{
VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
*update_info = pbi->common.refresh_alt_ref_frame * (int) VP8_ALTR_FRAME
+ pbi->common.refresh_golden_frame * (int) VP8_GOLD_FRAME
+ pbi->common.refresh_last_frame * (int) VP8_LAST_FRAME;
return VPX_CODEC_OK;
}
else
return VPX_CODEC_INVALID_PARAM;
}
extern int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame );
static vpx_codec_err_t vp8_get_last_ref_frame(vpx_codec_alg_priv_t *ctx,
int ctrl_id,
va_list args)
{
int *ref_info = va_arg(args, int *);
if (ref_info && !ctx->yv12_frame_buffers.use_frame_threads)
{
VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
VP8_COMMON *oci = &pbi->common;
*ref_info =
(vp8dx_references_buffer( oci, ALTREF_FRAME )?VP8_ALTR_FRAME:0) |
(vp8dx_references_buffer( oci, GOLDEN_FRAME )?VP8_GOLD_FRAME:0) |
(vp8dx_references_buffer( oci, LAST_FRAME )?VP8_LAST_FRAME:0);
return VPX_CODEC_OK;
}
else
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
int ctrl_id,
va_list args)
{
int *corrupted = va_arg(args, int *);
if (corrupted)
{
VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
*corrupted = pbi->common.frame_to_show->corrupted;
return VPX_CODEC_OK;
}
else
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t vp8_set_decrypt_key(vpx_codec_alg_priv_t *ctx,
int ctr_id,
va_list args)
{
const unsigned char *data = va_arg(args, const unsigned char *);
if (data == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
memcpy(ctx->decrypt_key, data, VP8_DECRYPT_KEY_SIZE);
return VPX_CODEC_OK;
}
vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] =
{
{VP8_SET_REFERENCE, vp8_set_reference},
{VP8_COPY_REFERENCE, vp8_get_reference},
{VP8_SET_POSTPROC, vp8_set_postproc},
{VP8_SET_DBG_COLOR_REF_FRAME, vp8_set_dbg_options},
{VP8_SET_DBG_COLOR_MB_MODES, vp8_set_dbg_options},
{VP8_SET_DBG_COLOR_B_MODES, vp8_set_dbg_options},
{VP8_SET_DBG_DISPLAY_MV, vp8_set_dbg_options},
{VP8D_GET_LAST_REF_UPDATES, vp8_get_last_ref_updates},
{VP8D_GET_FRAME_CORRUPTED, vp8_get_frame_corrupted},
{VP8D_GET_LAST_REF_USED, vp8_get_last_ref_frame},
{VP8_SET_DECRYPT_KEY, vp8_set_decrypt_key},
{ -1, NULL},
};
#ifndef VERSION_STRING
#define VERSION_STRING
#endif
CODEC_INTERFACE(vpx_codec_vp8_dx) =
{
"WebM Project VP8 Decoder" VERSION_STRING,
VPX_CODEC_INTERNAL_ABI_VERSION,
VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC | VP8_CAP_ERROR_CONCEALMENT |
VPX_CODEC_CAP_INPUT_FRAGMENTS,
/* vpx_codec_caps_t caps; */
vp8_init, /* vpx_codec_init_fn_t init; */
vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */
vp8_ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */
vp8_xma_get_mmap, /* vpx_codec_get_mmap_fn_t get_mmap; */
vp8_xma_set_mmap, /* vpx_codec_set_mmap_fn_t set_mmap; */
{
vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */
vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */
vp8_decode, /* vpx_codec_decode_fn_t decode; */
vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */
},
{ /* encoder functions */
NOT_IMPLEMENTED,
NOT_IMPLEMENTED,
NOT_IMPLEMENTED,
NOT_IMPLEMENTED,
NOT_IMPLEMENTED,
NOT_IMPLEMENTED
}
};
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