virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

mpeg2 qscale flag

Browse Source 
a few bugfixes for the C pp code
minor optimization

Originally committed as revision 1786 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-04-18 12:45:34 +00:00
parent 22cf045590
commit 0426af3111
6 changed files with 60 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
libavcodec/avcodec.h
View File

@ -15,8 +15,8 @@ extern "C" {
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
#define LIBAVCODEC_BUILD 4663
#define LIBAVCODEC_BUILD_STR "4663"
#define LIBAVCODEC_BUILD 4664
#define LIBAVCODEC_BUILD_STR "4664"
#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" LIBAVCODEC_BUILD_STR
@ -314,8 +314,15 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
* - encoding: unused\
* - decoding: set by lavc\
*/\
int repeat_pict;
int repeat_pict;\
\
/**\
* \
*/\
int qscale_type;\
#define FF_QSCALE_TYPE_MPEG1 0
#define FF_QSCALE_TYPE_MPEG2 1
#define FF_BUFFER_TYPE_INTERNAL 1
#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers

52
libavcodec/libpostproc/postprocess.c
View File

@ -199,8 +199,9 @@ static inline int isHorizDC(uint8_t src[], int stride, PPContext *c)
{
int numEq= 0;
int y;
const int dcOffset= ((c->QP*c->ppMode.baseDcDiff)>>8) + 1;
const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
const int dcThreshold= dcOffset*2 + 1;
for(y=0; y<BLOCK_SIZE; y++)
{
if(((unsigned)(src[0] - src[1] + dcOffset)) < dcThreshold) numEq++;
@ -221,8 +222,9 @@ static inline int isHorizDC(uint8_t src[], int stride, PPContext *c)
static inline int isVertDC_C(uint8_t src[], int stride, PPContext *c){
int numEq= 0;
int y;
const int dcOffset= ((c->QP*c->ppMode.baseDcDiff)>>8) + 1;
const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
const int dcThreshold= dcOffset*2 + 1;
src+= stride*4; // src points to begin of the 8x8 Block
for(y=0; y<BLOCK_SIZE-1; y++)
{
@ -735,12 +737,13 @@ static void reallocAlign(void **p, int alignment, int size){
memset(*p, 0, size);
}
static void reallocBuffers(PPContext *c, int width, int height, int stride){
static void reallocBuffers(PPContext *c, int width, int height, int stride, int qpStride){
int mbWidth = (width+15)>>4;
int mbHeight= (height+15)>>4;
int i;
c->stride= stride;
c->qpStride= qpStride;
reallocAlign((void **)&c->tempDst, 8, stride*24);
reallocAlign((void **)&c->tempSrc, 8, stride*24);
@ -757,7 +760,8 @@ static void reallocBuffers(PPContext *c, int width, int height, int stride){
}
reallocAlign((void **)&c->deintTemp, 8, 2*width+32);
reallocAlign((void **)&c->nonBQPTable, 8, mbWidth*mbHeight*sizeof(QP_STORE_T));
reallocAlign((void **)&c->nonBQPTable, 8, qpStride*mbHeight*sizeof(QP_STORE_T));
reallocAlign((void **)&c->stdQPTable, 8, qpStride*mbHeight*sizeof(QP_STORE_T));
reallocAlign((void **)&c->forcedQPTable, 8, mbWidth*sizeof(QP_STORE_T));
}
@ -772,6 +776,7 @@ static void global_init(){
pp_context_t *pp_get_context(int width, int height, int cpuCaps){
PPContext *c= memalign(32, sizeof(PPContext));
int stride= (width+15)&(~15); //assumed / will realloc if needed
int qpStride= (width+15)/16 + 2; //assumed / will realloc if needed
global_init();
@ -785,7 +790,7 @@ pp_context_t *pp_get_context(int width, int height, int cpuCaps){
c->vChromaSubSample= 1;
}
reallocBuffers(c, width, height, stride);
reallocBuffers(c, width, height, stride, qpStride);
c->frameNum=-1;
@ -804,6 +809,7 @@ void pp_free_context(void *vc){
free(c->tempDst);
free(c->tempSrc);
free(c->deintTemp);
free(c->stdQPTable);
free(c->nonBQPTable);
free(c->forcedQPTable);
@ -824,8 +830,10 @@ void pp_postprocess(uint8_t * src[3], int srcStride[3],
PPContext *c = (PPContext*)vc;
int minStride= MAX(srcStride[0], dstStride[0]);
if(c->stride < minStride)
reallocBuffers(c, width, height, minStride);
if(c->stride < minStride || c->qpStride < QPStride)
reallocBuffers(c, width, height,
MAX(minStride, c->stride),
MAX(c->qpStride, QPStride));
if(QP_store==NULL || (mode->lumMode & FORCE_QUANT))
{
@ -837,6 +845,20 @@ void pp_postprocess(uint8_t * src[3], int srcStride[3],
else
for(i=0; i<mbWidth; i++) QP_store[i]= 1;
}
//printf("pict_type:%d\n", pict_type);
if(pict_type & PP_PICT_TYPE_QP2){
int i;
const int count= mbHeight * QPStride;
for(i=0; i<(count>>2); i++){
((uint32_t*)c->stdQPTable)[i] = (((uint32_t*)QP_store)[i]>>1) & 0x7F7F7F7F;
}
for(i<<=2; i<count; i++){
c->stdQPTable[i] = QP_store[i]>>1;
}
QP_store= c->stdQPTable;
}
if(0){
int x,y;
for(y=0; y<mbHeight; y++){
@ -847,18 +869,16 @@ for(y=0; y<mbHeight; y++){
}
printf("\n");
}
//printf("pict_type:%d\n", pict_type);
if(pict_type!=3)
if((pict_type&7)!=3)
{
int x,y;
for(y=0; y<mbHeight; y++){
for(x=0; x<mbWidth; x++){
int qscale= QP_store[x + y*QPStride];
if(qscale&~31)
qscale=31;
c->nonBQPTable[y*mbWidth + x]= qscale;
int i;
const int count= mbHeight * QPStride;
for(i=0; i<(count>>2); i++){
((uint32_t*)c->nonBQPTable)[i] = ((uint32_t*)QP_store)[i] & 0x1F1F1F1F;
}
for(i<<=2; i<count; i++){
c->nonBQPTable[i] = QP_store[i] & 0x1F;
}
}

2
libavcodec/libpostproc/postprocess.h
View File

@ -66,6 +66,8 @@ void pp_free_context(pp_context_t *ppContext);
#define PP_FORMAT_411 (0x00000002|PP_FORMAT)
#define PP_FORMAT_444 (0x00000000|PP_FORMAT)
#define PP_PICT_TYPE_QP2 0x00000010 ///< MPEG2 style QScale
#ifdef __cplusplus
}
#endif

3
libavcodec/libpostproc/postprocess_internal.h
View File

@ -137,6 +137,7 @@ typedef struct PPContext{
uint64_t __attribute__((aligned(8))) mmxDcOffset[32];
uint64_t __attribute__((aligned(8))) mmxDcThreshold[32];
QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
QP_STORE_T *nonBQPTable;
QP_STORE_T *forcedQPTable;
@ -147,6 +148,7 @@ typedef struct PPContext{
int cpuCaps;
int qpStride; ///<size of qp buffers (needed to realloc them if needed)
int stride; ///<size of some buffers (needed to realloc them if needed)
int hChromaSubSample;
@ -155,3 +157,4 @@ typedef struct PPContext{
PPMode ppMode;
} PPContext;

2
libavcodec/libpostproc/postprocess_template.c
View File

@ -2993,7 +2993,7 @@ static void RENAME(postProcess)(uint8_t src[], int srcStride, uint8_t dst[], int
uint8_t *tempBlock2= c.tempBlocks + 8;
#endif
int8_t *QPptr= &QPs[(y>>qpVShift)*QPStride];
int8_t *nonBQPptr= &c.nonBQPTable[(y>>qpVShift)*mbWidth];
int8_t *nonBQPptr= &c.nonBQPTable[(y>>qpVShift)*QPStride];
int QP=0;
/* can we mess with a 8x16 block from srcBlock/dstBlock downwards and 1 line upwards
if not than use a temporary buffer */

7
libavcodec/mpeg12.c
View File

@ -2001,8 +2001,11 @@ eos: //end of slice
if (s->mb_y<<field_pic == s->mb_height && !s->first_field) {
/* end of image */
if(s->mpeg2)
s->qscale >>=1;
if(s->mpeg2){
s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_MPEG2;
}else
s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_MPEG1;
ff_er_frame_end(s);
MPV_frame_end(s);