public static void vp8_build_intra_predictors_mbuv_s(
MACROBLOCKD x, byte *uabove_row, byte *vabove_row,
byte *uleft, byte *vleft, int left_stride,
byte *upred_ptr, byte *vpred_ptr, int pred_stride)
{
MB_PREDICTION_MODE uvmode = (MB_PREDICTION_MODE)x.mode_info_context.get().mbmi.uv_mode;
byte *uleft_col = stackalloc byte[8];
byte *vleft_col = stackalloc byte[8];
int i;
intra_pred_fn fn;
for (i = 0; i < 8; ++i)
{
uleft_col[i] = uleft[i * left_stride];
vleft_col[i] = vleft[i * left_stride];
}
if (uvmode == MB_PREDICTION_MODE.DC_PRED)
{
fn = dc_pred[x.left_available, x.up_available, (int)PredictionSizes.SIZE_8];
}
else
{
fn = pred[(int)uvmode, (int)PredictionSizes.SIZE_8];
}
fn(upred_ptr, pred_stride, uabove_row, uleft_col);
fn(vpred_ptr, pred_stride, vabove_row, vleft_col);
}
public static void vp8_build_intra_predictors_mby_s(MACROBLOCKD x, byte *yabove_row,
byte *yleft, int left_stride,
byte *ypred_ptr, int y_stride)
{
MB_PREDICTION_MODE mode = (MB_PREDICTION_MODE)x.mode_info_context.get().mbmi.mode;
//DECLARE_ALIGNED(16, uint8_t, yleft_col[16]);
byte * yleft_col = stackalloc byte[16];
int i;
intra_pred_fn fn;
for (i = 0; i < 16; ++i)
{
yleft_col[i] = yleft[i * left_stride];
}
if (mode == MB_PREDICTION_MODE.DC_PRED)
{
fn = dc_pred[x.left_available, x.up_available, (int)PredictionSizes.SIZE_16];
}
else
{
fn = pred[(int)mode, (int)PredictionSizes.SIZE_16];
}
fn(ypred_ptr, y_stride, yabove_row, yleft_col);
}
public static unsafe void DumpSubBlockCoefficients(MACROBLOCKD macroBlock)
{
Debug.WriteLine($"MacroBlock subblock qcoeff:");
for (int i = 0; i < macroBlock.block.Length; i++)
{
var subBlock = macroBlock.block[i];
string qCoeff = null;
for (int j = subBlock.qcoeff.Index; j < subBlock.qcoeff.Index + 16; j++)
{
qCoeff += subBlock.qcoeff.src()[j].ToString() + ",";
}
Debug.WriteLine($"block[{i}].qcoeff={qCoeff}");
}
Debug.WriteLine("");
Debug.WriteLine($"MacroBlock subblock dqcoeff:");
for (int i = 0; i < macroBlock.block.Length; i++)
{
var subBlock = macroBlock.block[i];
string dqCoeff = null;
for (int j = subBlock.dqcoeff.Index; j < subBlock.dqcoeff.Index + 16; j++)
{
dqCoeff += subBlock.dqcoeff.src()[j].ToString() + ",";
}
Debug.WriteLine($"block[{i}].dqcoeff={dqCoeff}");
}
Debug.WriteLine("");
}
public static void intra_prediction_down_copy(MACROBLOCKD xd, byte *above_right_src)
{
int dst_stride = xd.dst.y_stride;
byte *above_right_dst = xd.dst.y_buffer - dst_stride + 16;
uint *src_ptr = (uint *)above_right_src;
uint *dst_ptr0 = (uint *)(above_right_dst + 4 * dst_stride);
uint *dst_ptr1 = (uint *)(above_right_dst + 8 * dst_stride);
uint *dst_ptr2 = (uint *)(above_right_dst + 12 * dst_stride);
*dst_ptr0 = *src_ptr;
*dst_ptr1 = *src_ptr;
*dst_ptr2 = *src_ptr;
}
public static unsafe void DumpMacroBlock(MACROBLOCKD macroBlock, int macroBlockIndex)
{
Debug.WriteLine($"MacroBlock {macroBlockIndex}:");
Debug.Write("eobs: ");
for (int i = 0; i < macroBlock.eobs.Length; i++)
{
Debug.Write($"{macroBlock.eobs[i]}, ");
}
Debug.WriteLine("");
Debug.WriteLine($"y: {DebugProbeHexStr.ToHexStr(macroBlock.dst.y_buffer, macroBlock.dst.y_width)}");
Debug.WriteLine($"u: {DebugProbeHexStr.ToHexStr(macroBlock.dst.u_buffer, macroBlock.dst.uv_width)}");
Debug.WriteLine($"v: {DebugProbeHexStr.ToHexStr(macroBlock.dst.v_buffer, macroBlock.dst.uv_width)}");
Debug.WriteLine("");
}
public static void vp8_reset_mb_tokens_context(MACROBLOCKD x)
{
//ENTROPY_CONTEXT* a_ctx = ((ENTROPY_CONTEXT*)x->above_context);
//ENTROPY_CONTEXT* l_ctx = ((ENTROPY_CONTEXT*)x->left_context);
//memset(a_ctx, 0, sizeof(ENTROPY_CONTEXT_PLANES) - 1);
//memset(l_ctx, 0, sizeof(ENTROPY_CONTEXT_PLANES) - 1);
x.above_context.get().Clear(false);
x.left_context.Clear(false);
/* Clear entropy contexts for Y2 blocks */
if (x.mode_info_context.get().mbmi.is_4x4 == 0)
{
//a_ctx[8] = l_ctx[8] = 0;
x.above_context.get().y2 = x.left_context.y2 = default;
}
}
public unsafe static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t ctx,
byte *data, uint data_sz,
IntPtr user_priv, long deadline)
{
try
{
vpx_codec_err_t res = vpx_codec_err_t.VPX_CODEC_OK;
uint resolution_change = 0;
uint w, h;
if (ctx.fragments.enabled == 0 && data == null && data_sz == 0)
{
return(0);
}
/* Update the input fragment data */
if (update_fragments(ctx, data, data_sz, out 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_internal(ctx.fragments.ptrs[0], ctx.fragments.sizes[0],
// ctx.si, ctx.decrypt_cb, ctx.decrypt_state);
res = vp8_peek_si_internal(ctx.fragments.ptrs[0], ctx.fragments.sizes[0],
ref ctx.si, null, IntPtr.Zero);
if (res == vpx_codec_err_t.VPX_CODEC_UNSUP_BITSTREAM && ctx.si.is_kf == 0)
{
/* the peek function returns an error for non keyframes, however for
* this case, it is not an error */
res = vpx_codec_err_t.VPX_CODEC_OK;
}
if (ctx.decoder_init == 0 && ctx.si.is_kf == 0)
{
res = vpx_codec_err_t.VPX_CODEC_UNSUP_BITSTREAM;
}
if ((ctx.si.h != h) || (ctx.si.w != w))
{
resolution_change = 1;
}
/* Initialize the decoder instance on the first frame*/
if (res == vpx_codec_err_t.VPX_CODEC_OK && ctx.decoder_init == 0)
{
VP8D_CONFIG oxcf = new VP8D_CONFIG();
oxcf.Width = (int)ctx.si.w;
oxcf.Height = (int)ctx.si.h;
oxcf.Version = 9;
oxcf.postprocess = 0;
oxcf.max_threads = (int)ctx.cfg.threads;
oxcf.error_concealment = (int)([email protected]_flags & vpx_decoder.VPX_CODEC_USE_ERROR_CONCEALMENT);
res = onyxd.vp8_create_decoder_instances(ctx.yv12_frame_buffers, oxcf);
if (res == vpx_codec_err_t.VPX_CODEC_OK)
{
ctx.decoder_init = 1;
}
}
if (res == vpx_codec_err_t.VPX_CODEC_OK)
{
VP8D_COMP pbi = ctx.yv12_frame_buffers.pbi[0];
VP8_COMMON pc = pbi.common;
if (resolution_change > 0)
{
MACROBLOCKD xd = pbi.mb;
pc.Width = (int)ctx.si.w;
pc.Height = (int)ctx.si.h;
{
int prev_mb_rows = pc.mb_rows;
// Port AC: TODO identify alternative error mechanism.
//if (setjmp(pbi.common.error.jmp))
//{
// pbi.common.error.setjmp = 0;
// /* on failure clear the cached resolution to ensure a full
// * reallocation is attempted on resync. */
// ctx.si.w = 0;
// ctx.si.h = 0;
// vpx_clear_system_state();
// /* same return value as used in vp8dx_receive_compressed_data */
// return -1;
//}
//pbi.common.error.setjmp = 1;
if (pc.Width <= 0)
{
pc.Width = (int)w;
vpx_codec.vpx_internal_error(ref pc.error, vpx_codec_err_t.VPX_CODEC_CORRUPT_FRAME,
"Invalid frame width");
}
if (pc.Height <= 0)
{
pc.Height = (int)h;
vpx_codec.vpx_internal_error(ref pc.error, vpx_codec_err_t.VPX_CODEC_CORRUPT_FRAME,
"Invalid frame height");
}
if (alloccommon.vp8_alloc_frame_buffers(pc, pc.Width, pc.Height) != 0)
{
vpx_codec.vpx_internal_error(ref pc.error, vpx_codec_err_t.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];
mbpitch.vp8_build_block_doffsets(pbi.mb);
// Port AC: Assume this cast was a noop to remove compiler warning.
//(void)prev_mb_rows;
}
// Port AC: TODO identify alternative error mechanism.
//pbi.common.error.setjmp = 0;
/* required to get past the first get_free_fb() call */
pbi.common.fb_idx_ref_cnt[0] = 0;
}
// Port AC: TODO identify alternative error mechanism.
//if (setjmp(pbi.common.error.jmp))
//{
// vpx_clear_system_state();
// /* We do not know if the missing frame(s) was supposed to update
// * any of the reference buffers, but we act conservative and
// * mark only the last buffer as corrupted.
// */
// pc.yv12_fb[pc.lst_fb_idx].corrupted = 1;
// if (pc.fb_idx_ref_cnt[pc.new_fb_idx] > 0)
// {
// pc.fb_idx_ref_cnt[pc.new_fb_idx]--;
// }
// pc.error.setjmp = 0;
// res = update_error_state(ctx, pbi.common.error);
// return res;
//}
//pbi.common.error.setjmp = 1;
/* update the pbi fragment data */
pbi.fragments = ctx.fragments;
ctx.user_priv = user_priv;
if (onyxd.vp8dx_receive_compressed_data(pbi, deadline) != 0)
{
res = update_error_state(ctx, pbi.common.error);
}
/* get ready for the next series of fragments */
ctx.fragments.count = 0;
}
return(res);
}
catch (VpxException vpxExcp)
{
return(vpxExcp.ErrorCode);
}
}
public static int vp8_decode_mb_tokens(VP8D_COMP dx, MACROBLOCKD x)
{
BOOL_DECODER bc = x.current_bc;
FRAME_CONTEXT fc = dx.common.fc;
//char* eobs = x->eobs;
sbyte[] eobs = x.eobs;
int i;
int nonzeros;
int eobtotal = 0;
//short* qcoeff_ptr;
//ProbaArray coef_probs;
//int coefIndex = entropy.COEF_BANDS * entropy.PREV_COEF_CONTEXTS * entropy.ENTROPY_NODES;
//ENTROPY_CONTEXT* a_ctx = ((ENTROPY_CONTEXT*)x->above_context);
//ENTROPY_CONTEXT* l_ctx = ((ENTROPY_CONTEXT*)x->left_context);
//ENTROPY_CONTEXT* a;
//ENTROPY_CONTEXT* l;
int blockSlice = entropy.COEF_BANDS * entropy.PREV_COEF_CONTEXTS * entropy.ENTROPY_NODES;
fixed(byte *pCoefProbs = fc.coef_probs)
{
byte *coef_probs = null;
fixed(sbyte *pAboveCtx = x.above_context.get().y1, pLeftContext = x.left_context.y1)
{
ENTROPY_CONTEXT *a_ctx = pAboveCtx;
ENTROPY_CONTEXT *l_ctx = pLeftContext;
ENTROPY_CONTEXT *a;
ENTROPY_CONTEXT *l;
int skip_dc = 0;
//qcoeff_ptr = x.qcoeff[0];
fixed(short *pQcoeff = x.qcoeff)
{
short *qcoeff_ptr = pQcoeff;
if (x.mode_info_context.get().mbmi.is_4x4 == 0)
{
a = a_ctx + 8;
l = l_ctx + 8;
//coef_probs = fc.coef_probs[1];
coef_probs = pCoefProbs + blockSlice;
nonzeros = GetCoeffs(bc, coef_probs, (*a + *l), 0, qcoeff_ptr + 24 * 16);
*a = *l = (sbyte)(nonzeros > 0 ? 1 : 0);
eobs[24] = (sbyte)nonzeros;
eobtotal += nonzeros - 16;
//coef_probs = fc.coef_probs[0];
coef_probs = pCoefProbs;
skip_dc = 1;
}
else
{
//coef_probs = fc.coef_probs[3];
coef_probs = pCoefProbs + 3 * blockSlice;
skip_dc = 0;
}
for (i = 0; i < 16; ++i)
{
a = a_ctx + (i & 3);
l = l_ctx + ((i & 0xc) >> 2);
nonzeros = GetCoeffs(bc, coef_probs, (*a + *l), skip_dc, qcoeff_ptr);
*a = *l = (sbyte)(nonzeros > 0 ? 1 : 0);
nonzeros += skip_dc;
eobs[i] = (sbyte)nonzeros;
eobtotal += nonzeros;
qcoeff_ptr += 16;
}
//coef_probs = fc.coef_probs[2];
coef_probs = pCoefProbs + 2 * blockSlice;
a_ctx += 4;
l_ctx += 4;
for (i = 16; i < 24; ++i)
{
a = a_ctx + ((i > 19 ? 1 : 0) << 1) + (i & 1);
l = l_ctx + ((i > 19 ? 1 : 0) << 1) + ((i & 3) > 1 ? 1 : 0);
nonzeros = GetCoeffs(bc, coef_probs, (*a + *l), 0, qcoeff_ptr);
*a = *l = (sbyte)(nonzeros > 0 ? 1 : 0);
eobs[i] = (sbyte)nonzeros;
eobtotal += nonzeros;
qcoeff_ptr += 16;
}
}
}
}
return(eobtotal);
}
