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ffmpeg.wasm-core
Commit e6464f8b authored by Diego Biurrun's avatar Diego Biurrun
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cosmetics: spelling/grammar 

Originally committed as revision 12238 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent c3a3d344
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Showing with 27 additions and 26 deletions
libavcodec/snow.c
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......@@ -406,7 +406,7 @@ typedef struct SubBand{
int stride;
int width;
int height;
int qlog; ///< log(qscale)/log[2^(1/6)]
int qlog; ///< log(qscale)/log[2^(1/6)]
DWTELEM *buf;
IDWTELEM *ibuf;
int buf_x_offset;
......@@ -433,7 +433,7 @@ typedef struct Plane{
}Plane;
typedef struct SnowContext{
// MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independent of MpegEncContext, so this will be removed then (FIXME/XXX)
// MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX)
AVCodecContext *avctx;
RangeCoder c;
......@@ -487,7 +487,7 @@ typedef struct SnowContext{
int me_cache_generation;
slice_buffer sb;
MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independent of MpegEncContext, so this will be removed then (FIXME/XXX)
MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX)
}SnowContext;
typedef struct {
......@@ -2416,7 +2416,7 @@ void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_
}
}
//FIXME name clenup (b_w, block_w, b_width stuff)
//FIXME name cleanup (b_w, block_w, b_width stuff)
static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer *sb, IDWTELEM *dst, uint8_t *dst8, const uint8_t *obmc, int src_x, int src_y, int b_w, int b_h, int w, int h, int dst_stride, int src_stride, int obmc_stride, int b_x, int b_y, int add, int offset_dst, int plane_index){
const int b_width = s->b_width << s->block_max_depth;
const int b_height= s->b_height << s->block_max_depth;
......@@ -2446,7 +2446,7 @@ static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer
rb= rt;
}
if(src_x<0){ //FIXME merge with prev & always round internal width upto *16
if(src_x<0){ //FIXME merge with prev & always round internal width up to *16
obmc -= src_x;
b_w += src_x;
if(!sliced && !offset_dst)
......@@ -2730,12 +2730,12 @@ static int get_dc(SnowContext *s, int mb_x, int mb_y, int plane_index){
if(x<0) obmc_v += obmc[index + block_w];
if(y+block_w>h) obmc_v += obmc[index - block_w*obmc_stride];
if(x+block_w>w) obmc_v += obmc[index - block_w];
//FIXME precalc this or simplify it somehow else
//FIXME precalculate this or simplify it somehow else
d = -dst[index] + (1<<(FRAC_BITS-1));
dst[index] = d;
ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v;
aa += obmc_v * obmc_v; //FIXME precalclate this
aa += obmc_v * obmc_v; //FIXME precalculate this
}
}
}
......@@ -2767,7 +2767,7 @@ static inline int get_block_bits(SnowContext *s, int x, int y, int w){
00001XXXX 15-30 8-15
*/
//FIXME try accurate rate
//FIXME intra and inter predictors if surrounding blocks arent the same type
//FIXME intra and inter predictors if surrounding blocks are not the same type
if(b->type & BLOCK_INTRA){
return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0]))
+ av_log2(2*FFABS(left->color[1] - b->color[1]))
......@@ -2846,10 +2846,10 @@ static int get_block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index, con
if(block_w==16){
/* FIXME rearrange dsputil to fit 32x32 cmp functions */
/* FIXME check alignment of the cmp wavelet vs the encoding wavelet */
/* FIXME cmps overlap but don't cover the wavelet's whole support,
* so improving the score of one block is not strictly guaranteed to
* improve the score of the whole frame, so iterative motion est
* doesn't always converge. */
/* FIXME cmps overlap but do not cover the wavelet's whole support.
* So improving the score of one block is not strictly guaranteed
* to improve the score of the whole frame, thus iterative motion
* estimation does not always converge. */
if(s->avctx->me_cmp == FF_CMP_W97)
distortion = w97_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
else if(s->avctx->me_cmp == FF_CMP_W53)
......@@ -2982,7 +2982,8 @@ static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int
}
}
/* special case for int[2] args we discard afterward, fixes compilation prob with gcc 2.95 */
/* special case for int[2] args we discard afterwards,
* fixes compilation problem with gcc 2.95 */
static av_always_inline int check_block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, const uint8_t *obmc_edged, int *best_rd){
int p[2] = {p0, p1};
return check_block(s, mb_x, mb_y, p, 0, obmc_edged, best_rd);
......@@ -3074,7 +3075,7 @@ static void iterative_me(SnowContext *s){
memset(s->me_cache, 0, sizeof(s->me_cache));
s->me_cache_generation += 1<<22;
//FIXME precalc
//FIXME precalculate
{
int x, y;
memcpy(obmc_edged, obmc_tab[s->block_max_depth], b_w*b_w*4);
......@@ -3157,7 +3158,7 @@ static void iterative_me(SnowContext *s){
check_block_inter(s, mb_x, mb_y, mvr[b_stride][0], mvr[b_stride][1], *obmc_edged, &best_rd);
/* fullpel ME */
//FIXME avoid subpel interpol / round to nearest integer
//FIXME avoid subpel interpolation / round to nearest integer
do{
dia_change=0;
for(i=0; i<FFMAX(s->avctx->dia_size, 1); i++){
......@@ -3700,7 +3701,7 @@ static int common_init(AVCodecContext *avctx){
height= s->avctx->height;
s->spatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM));
s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this doesnt belong here
s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this does not belong here
for(i=0; i<MAX_REF_FRAMES; i++)
for(j=0; j<MAX_REF_FRAMES; j++)
......@@ -3771,7 +3772,7 @@ static int qscale2qlog(int qscale){
static int ratecontrol_1pass(SnowContext *s, AVFrame *pict)
{
/* estimate the frame's complexity as a sum of weighted dwt coefs.
/* Estimate the frame's complexity as a sum of weighted dwt coefficients.
* FIXME we know exact mv bits at this point,
* but ratecontrol isn't set up to include them. */
uint32_t coef_sum= 0;
......@@ -3864,7 +3865,7 @@ static void find_sse(SnowContext *s, Plane *p, int *score, int score_stride, IDW
if(orientation&2)
yo= step>>1;
//FIXME bias for non zero ?
//FIXME bias for nonzero ?
//FIXME optimize
memset(score, 0, sizeof(*score)*score_stride*((p->height + Q2_STEP-1)/Q2_STEP));
for(y=0; y<p->height; y++){
......@@ -3912,7 +3913,7 @@ static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, i
SubBand *b= &p->band[level][orientation];
IDWTELEM *dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer);
DWTELEM *src= buffer + (b-> buf - s->spatial_dwt_buffer);
assert(src == b->buf); // code doesnt depen on this but its true currently
assert(src == b->buf); // code does not depend on this but it is true currently
quantize(s, b, dst, src, b->stride, s->qbias);
}
......@@ -3937,7 +3938,7 @@ static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, i
for(x=xs; x<b->width; x+= Q2_STEP){
if(dst[x + y*b->stride]<0) dst[x + y*b->stride]++;
if(dst[x + y*b->stride]>0) dst[x + y*b->stride]--;
//FIXME try more then just --
//FIXME try more than just --
}
}
dequantize_all(s, p, idwt2_buffer, width, height);
......@@ -3959,7 +3960,7 @@ static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, i
}
}
}
memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly insteda of copy at the end
memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly instead of copy at the end
}
#endif /* QUANTIZE2==1 */
......@@ -3970,15 +3971,15 @@ static int encode_init(AVCodecContext *avctx)
int plane_index;
if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
av_log(avctx, AV_LOG_ERROR, "this codec is under development, files encoded with it may not be decodable with future versions!!!\n"
"use vstrict=-2 / -strict -2 to use it anyway\n");
av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n"
"Use vstrict=-2 / -strict -2 to use it anyway.\n");
return -1;
}
if(avctx->prediction_method == DWT_97
&& (avctx->flags & CODEC_FLAG_QSCALE)
&& avctx->global_quality == 0){
av_log(avctx, AV_LOG_ERROR, "the 9/7 wavelet is incompatible with lossless mode\n");
av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n");
return -1;
}
......@@ -4197,7 +4198,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
if(s->qlog < 0 || (!pict->quality && (avctx->flags & CODEC_FLAG_QSCALE))){
s->qlog= LOSSLESS_QLOG;
s->lambda = 0;
}//else keep previous frame's qlog until after motion est
}//else keep previous frame's qlog until after motion estimation
frame_start(s);
......@@ -4508,7 +4509,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, const
if(!s->block) alloc_blocks(s);
frame_start(s);
//keyframe flag dupliaction mess FIXME
//keyframe flag duplication mess FIXME
if(avctx->debug&FF_DEBUG_PICT_INFO)
av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog);
......
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