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5327ea0698
vpx/vp8/vp8_dx_iface.c
Timothy B. Terriberry c4d7e5e67e Eliminate more warnings. 
This eliminates a large set of warnings exposed by the Mozilla build
 system (Use of C++ comments in ISO C90 source, commas at the end of
 enum lists, a couple incomplete initializers, and signed/unsigned
 comparisons).
It also eliminates many (but not all) of the warnings expose by newer
 GCC versions and _FORTIFY_SOURCE (e.g., calling fread and fwrite
 without checking the return values).
There are a few spurious warnings left on my system:

../vp8/encoder/encodemb.c:274:9: warning: 'sz' may be used
 uninitialized in this function
gcc seems to be unable to figure out that the value shortcut doesn't
 change between the two if blocks that test it here.

../vp8/encoder/onyx_if.c:5314:5: warning: comparison of unsigned
 expression >= 0 is always true
../vp8/encoder/onyx_if.c:5319:5: warning: comparison of unsigned
 expression >= 0 is always true
This is true, so far as it goes, but it's comparing against an enum, and the C
 standard does not mandate that enums be unsigned, so the checks can't be
 removed.

Change-Id: Iaf689ae3e3d0ddc5ade00faa474debe73b8d3395
2010-10-27 18:08:04 -07:00

712 lines
20 KiB
C
Raw Blame History

/*
* 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 "vpx/vpx_decoder.h"
#include "vpx/vp8dx.h"
#include "vpx/internal/vpx_codec_internal.h"
#include "vpx_version.h"
#include "onyxd.h"
#include "onyxd_int.h"
#define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
#if CONFIG_BIG_ENDIAN
# define swap4(d)\
((d&0x000000ff)<<24) | \
((d&0x0000ff00)<<8) | \
((d&0x00ff0000)>>8) | \
((d&0xff000000)>>24)
# define swap2(d)\
((d&0x000000ff)<<8) | \
((d&0x0000ff00)>>8)
#else
# define swap4(d) d
# define swap2(d) d
#endif
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;
VP8D_PTR pbi;
int postproc_cfg_set;
vp8_postproc_cfg_t postproc_cfg;
vpx_image_t img;
int img_setup;
int img_avail;
};
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 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);
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(vp8_mem_req_segs); 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)
{
/*
ctx->pbi = mmap_lkup(ctx, VP6_SEG_PB_INSTANCE);
ctx->pbi->mbi.block_dx_info[0].idct_output_ptr = mmap_lkup(ctx, VP6_SEG_IDCT_BUFFER);
ctx->pbi->loop_filtered_block = mmap_lkup(ctx, VP6_SEG_LF_BLOCK);
ctx->pbi->huff = mmap_lkup(ctx, VP6_SEG_HUFF);
ctx->pbi->mbi.coeffs_base_ptr = mmap_lkup(ctx, VP6_SEG_COEFFS);
ctx->pbi->fc.above_y = mmap_lkup(ctx, VP6_SEG_ABOVEY);
ctx->pbi->fc.above_u = mmap_lkup(ctx, VP6_SEG_ABOVEU);
ctx->pbi->fc.above_v = mmap_lkup(ctx, VP6_SEG_ABOVEV);
ctx->pbi->prediction_mode = mmap_lkup(ctx, VP6_SEG_PRED_MODES);
ctx->pbi->mbmotion_vector = mmap_lkup(ctx, VP6_SEG_MV_FIELD);
ctx->pbi->fb_storage_ptr[0] = mmap_lkup(ctx, VP6_SEG_IMG0_STRG);
ctx->pbi->fb_storage_ptr[1] = mmap_lkup(ctx, VP6_SEG_IMG1_STRG);
ctx->pbi->fb_storage_ptr[2] = mmap_lkup(ctx, VP6_SEG_IMG2_STRG);
#if CONFIG_POSTPROC
ctx->pbi->postproc.deblock.fragment_variances = mmap_lkup(ctx, VP6_SEG_DEBLOCKER);
ctx->pbi->fb_storage_ptr[3] = mmap_lkup(ctx, VP6_SEG_PP_IMG_STRG);
#endif
*/
}
static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx)
{
vpx_codec_err_t res = VPX_CODEC_OK;
/* 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)
{
vp8_init_ctx(ctx, &mmap);
ctx->priv->alg_priv->defer_alloc = 1;
/*post processing level initialized to do nothing */
}
}
return res;
}
static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx)
{
int i;
vp8dx_remove_decompressor(ctx->pbi);
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(const uint8_t *data,
unsigned int data_sz,
vpx_codec_stream_info_t *si)
{
vpx_codec_err_t res = VPX_CODEC_OK;
{
/* 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.
*/
si->is_kf = 0;
if (data_sz >= 10 && !(data[0] & 0x01)) /* I-Frame */
{
const uint8_t *c = data + 3;
si->is_kf = 1;
/* vet via sync code */
if (c[0] != 0x9d || c[1] != 0x01 || c[2] != 0x2a)
res = VPX_CODEC_UNSUP_BITSTREAM;
si->w = swap2(*(const unsigned short *)(c + 3)) & 0x3fff;
si->h = swap2(*(const unsigned short *)(c + 5)) & 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_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 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;
ctx->img_avail = 0;
/* Determine the stream parameters */
if (!ctx->si.h)
res = ctx->base.iface->dec.peek_si(data, data_sz, &ctx->si);
/* 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;
VP8D_PTR optr;
vp8dx_initialize();
oxcf.Width = ctx->si.w;
oxcf.Height = ctx->si.h;
oxcf.Version = 9;
oxcf.postprocess = 0;
oxcf.max_threads = ctx->cfg.threads;
optr = vp8dx_create_decompressor(&oxcf);
/* 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;
ctx->postproc_cfg.deblocking_level = 4;
ctx->postproc_cfg.noise_level = 0;
}
if (!optr)
res = VPX_CODEC_ERROR;
else
ctx->pbi = optr;
}
ctx->decoder_init = 1;
}
if (!res && ctx->pbi)
{
YV12_BUFFER_CONFIG sd;
INT64 time_stamp = 0, time_end_stamp = 0;
int ppflag = 0;
int ppdeblocking = 0;
int ppnoise = 0;
if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
{
ppflag = ctx->postproc_cfg.post_proc_flag;
ppdeblocking = ctx->postproc_cfg.deblocking_level;
ppnoise = ctx->postproc_cfg.noise_level;
}
if (vp8dx_receive_compressed_data(ctx->pbi, data_sz, data, deadline))
{
VP8D_COMP *pbi = (VP8D_COMP *)ctx->pbi;
res = update_error_state(ctx, &pbi->common.error);
}
if (!res && 0 == vp8dx_get_raw_frame(ctx->pbi, &sd, &time_stamp, &time_end_stamp, ppdeblocking, ppnoise, ppflag))
{
/* Align width/height */
unsigned int a_w = (sd.y_width + 15) & ~15;
unsigned int a_h = (sd.y_height + 15) & ~15;
vpx_img_wrap(&ctx->img, VPX_IMG_FMT_I420,
a_w + 2 * VP8BORDERINPIXELS,
a_h + 2 * VP8BORDERINPIXELS,
1,
sd.buffer_alloc);
vpx_img_set_rect(&ctx->img,
VP8BORDERINPIXELS, VP8BORDERINPIXELS,
sd.y_width, sd.y_height);
ctx->img_avail = 1;
}
}
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;
if (ctx->img_avail)
{
/* iter acts as a flip flop, so an image is only returned on the first
* call to get_frame.
*/
if (!(*iter))
{
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(vp8_mem_req_segs); 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);
}
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)
{
vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
YV12_BUFFER_CONFIG sd;
image2yuvconfig(&frame->img, &sd);
vp8dx_set_reference(ctx->pbi, frame->frame_type, &sd);
return VPX_CODEC_OK;
}
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)
{
vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
YV12_BUFFER_CONFIG sd;
image2yuvconfig(&frame->img, &sd);
vp8dx_get_reference(ctx->pbi, frame->frame_type, &sd);
return VPX_CODEC_OK;
}
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)
{
vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
#if CONFIG_POSTPROC
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
}
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},
{ -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,
/* 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
}
};
/*
* BEGIN BACKWARDS COMPATIBILITY SHIM.
*/
vpx_codec_iface_t vpx_codec_vp8_algo =
{
"WebM Project VP8 Decoder (Deprecated API)" VERSION_STRING,
VPX_CODEC_INTERNAL_ABI_VERSION,
VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC,
/* 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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