--- /dev/null
+#include <VLIB/Platform/video_utils.h>
+#include <VLIB/Platform/video_config.h>
+
+#include <VLIB/video_quantizer.h>
+#include <VLIB/video_dct.h>
+#include <VLIB/video_mem32.h>
+#include <VLIB/video_packetizer.h>
+
+#include <VLIB/UVLC/uvlc_codec.h>
+#include <VLIB/UVLC/uvlc.h>
+
+#include <VP_Os/vp_os_malloc.h>
+#include <VP_Os/vp_os_assert.h>
+
+#if TARGET_CPU_X86 == 1
+
+#ifdef HAS_UVLC_DECODE_BLOCKLINE
+C_RESULT uvlc_read_block_unquantize( video_controller_t* controller, int16_t* data, int32_t quant, int32_t nc )
+{
+ video_stream_t* stream = &controller->in_stream;
+ int32_t* zztable;
+ int32_t index, code, run, last;
+
+ zztable = &video_zztable_t81[0];
+
+ // DC coeff
+ code = run = last = 0;
+ video_read_data( stream, (uint32_t*) &code, 10 );
+
+ if( controller->picture_type == VIDEO_PICTURE_INTRA ) // intra
+ {
+ code <<= 3;
+ }
+ else
+ {
+ code = quant*( 2*code + 1 );
+ if( quant & 1 )
+ code -= 1;
+ }
+ data[0] = code;
+
+ if( nc > 0 )
+ {
+ // AC coeff
+ while( last == 0 )
+ {
+ code = run = last = 0;
+ uvlc_decode( stream, &run, &code, &last);
+
+ VP_OS_ASSERT( run < 64 );
+
+ if( last == 0 )
+ {
+ zztable += (run+1);
+ index = *zztable;
+
+ code = quant*( 2*code + 1 );
+ if( quant & 1 )
+ code -= 1;
+
+ data[index] = code;
+ }
+ }
+ }
+
+ return C_OK;
+}
+
+C_RESULT uvlc_read_mb_layer_unquantize( video_controller_t* controller, video_macroblock_t* mb, int32_t num_macro_blocks )
+{
+ int16_t* data;
+ uint32_t code;
+
+ video_zeromem32( (uint32_t*)mb->data, num_macro_blocks * 6 * MCU_BLOCK_SIZE / 2 );
+
+ while( num_macro_blocks > 0 )
+ {
+ mb->azq = 0;
+ video_read_data( &controller->in_stream, (uint32_t*)&mb->azq, 1 );
+
+ if( mb->azq == 0 )
+ {
+ video_read_data( &controller->in_stream, &code, 8 );
+
+ mb->num_coeff_y0 = (code >> 0) & 1;
+ mb->num_coeff_y1 = (code >> 1) & 1;
+ mb->num_coeff_y2 = (code >> 2) & 1;
+ mb->num_coeff_y3 = (code >> 3) & 1;
+ mb->num_coeff_cb = (code >> 4) & 1;
+ mb->num_coeff_cr = (code >> 5) & 1;
+
+ mb->dquant = 0;
+ if( (code >> 6) & 1 )
+ {
+ video_read_data( &controller->in_stream, &code, 2 );
+
+ mb->dquant = (code < 2) ? ~code : code;
+ }
+
+ controller->quant += mb->dquant;
+
+ /**************** Block Y0 ****************/
+ data = mb->data;
+ uvlc_read_block_unquantize( controller, data, controller->quant, mb->num_coeff_y0 );
+
+ /**************** Block Y1 ****************/
+ data += MCU_BLOCK_SIZE;
+ uvlc_read_block_unquantize( controller, data, controller->quant, mb->num_coeff_y1 );
+
+ /**************** Block Y2 ****************/
+ data += MCU_BLOCK_SIZE;
+ uvlc_read_block_unquantize( controller, data, controller->quant, mb->num_coeff_y2 );
+
+ /**************** Block Y3 ****************/
+ data += MCU_BLOCK_SIZE;
+ uvlc_read_block_unquantize( controller, data, controller->quant, mb->num_coeff_y3 );
+
+ /**************** Block CB ****************/
+ data += MCU_BLOCK_SIZE;
+ uvlc_read_block_unquantize( controller, data, controller->quant, mb->num_coeff_cb );
+
+ /**************** Block CR ****************/
+ data += MCU_BLOCK_SIZE;
+ uvlc_read_block_unquantize( controller, data, controller->quant, mb->num_coeff_cr );
+ }
+
+ mb ++;
+ num_macro_blocks --;
+ }
+
+ return C_OK;
+}
+
+C_RESULT uvlc_decode_blockline( video_controller_t* controller, vp_api_picture_t* picture, bool_t* got_image )
+{
+ video_codec_t* video_codec;
+ vp_api_picture_t blockline = { 0 };
+ int16_t *in = NULL, *out = NULL;
+ int32_t num_macro_blocks = 0;
+ video_macroblock_t* macroblock = NULL;
+ video_picture_context_t blockline_ctx;
+ video_gob_t* gobs;
+
+ controller->mode = VIDEO_DECODE;
+ video_codec = controller->video_codec;
+
+ blockline = *picture;
+ blockline.height = MB_HEIGHT_Y;
+ blockline.complete = 1;
+ blockline.vision_complete = 0;
+
+ picture->complete = controller->picture_complete;
+
+ blockline_ctx.y_woffset = blockline.y_line_size;
+ blockline_ctx.c_woffset = blockline.cb_line_size;
+ blockline_ctx.y_hoffset = blockline.y_line_size * MCU_HEIGHT;
+
+ // At least a complete blockline is found
+ while( !controller->picture_complete && controller->in_stream.index <= (controller->in_stream.used >> 2) )
+ {
+ uvlc_unpack_controller( controller );
+
+ if( !controller->picture_complete )
+ {
+ blockline.blockline = controller->blockline;
+
+ blockline_ctx.y_src = picture->y_buf + blockline.blockline * MB_HEIGHT_Y * picture->y_line_size;
+ blockline_ctx.cb_src = picture->cb_buf + blockline.blockline * MB_HEIGHT_C * picture->cb_line_size;
+ blockline_ctx.cr_src = picture->cr_buf + blockline.blockline * MB_HEIGHT_C * picture->cr_line_size;
+
+ picture->blockline = controller->blockline;
+ num_macro_blocks = controller->mb_blockline;
+
+ macroblock = &controller->cache_mbs[0];
+ gobs = &controller->gobs[controller->blockline];
+ out = gobs->macroblocks->data;
+
+ if( gobs->quant != controller->quant )
+ {
+ controller->quant = gobs->quant;
+ video_quantizer_update( controller );
+ }
+
+ while( num_macro_blocks > MAX_NUM_MACRO_BLOCKS_PER_CALL )
+ {
+ in = ¯oblock->data[0];
+
+ uvlc_read_mb_layer_unquantize( controller, macroblock, MAX_NUM_MACRO_BLOCKS_PER_CALL );
+
+ out = video_idct_compute( in, out, MAX_NUM_MACRO_BLOCKS_PER_CALL );
+
+ if( macroblock == &controller->cache_mbs[0] )
+ macroblock += MAX_NUM_MACRO_BLOCKS_PER_CALL;
+ else
+ macroblock -= MAX_NUM_MACRO_BLOCKS_PER_CALL;
+
+ num_macro_blocks -= MAX_NUM_MACRO_BLOCKS_PER_CALL;
+ }
+
+ in = macroblock->data;
+
+ uvlc_read_mb_layer_unquantize( controller, macroblock, num_macro_blocks );
+
+ video_idct_compute( in, out, num_macro_blocks );
+
+ video_blockline_from_macro_blocks(&blockline_ctx, gobs->macroblocks->data, controller->mb_blockline, picture->format);
+
+ // Update controller according to video statistics
+ video_controller_update( controller, controller->picture_complete );
+ }
+ }
+
+ if( controller->picture_complete )
+ {
+ picture->complete = controller->picture_complete;
+ picture->blockline = 0;
+
+ controller->picture_complete = 0;
+ controller->in_stream.length = 32;
+ //controller->num_frames++;
+
+ *got_image = TRUE;
+ }
+ else
+ {
+ controller->in_stream.used = 0;
+ controller->in_stream.index = 0;
+ }
+
+ return C_OK;
+}
+#endif
+
+#endif // TARGET_CPU_X86 == 1
projects / mardrone / blobdiff