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Diffstat (limited to 'src/libffmpeg/libavcodec/utils.c')
-rw-r--r--src/libffmpeg/libavcodec/utils.c283
1 files changed, 188 insertions, 95 deletions
diff --git a/src/libffmpeg/libavcodec/utils.c b/src/libffmpeg/libavcodec/utils.c
index a45d57de0..afff2f98a 100644
--- a/src/libffmpeg/libavcodec/utils.c
+++ b/src/libffmpeg/libavcodec/utils.c
@@ -31,7 +31,25 @@
#include <stdarg.h>
#include <limits.h>
-static void avcodec_default_free_buffers(AVCodecContext *s);
+const uint8_t ff_sqrt_tab[128]={
+ 0, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11
+};
+
+const uint8_t ff_log2_tab[256]={
+ 0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
+ 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+ 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+ 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
+};
+
+void avcodec_default_free_buffers(AVCodecContext *s);
void *av_mallocz(unsigned int size)
{
@@ -64,7 +82,7 @@ void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
if(min_size < *size)
return ptr;
- *size= 17*min_size/16 + 32;
+ *size= FFMAX(17*min_size/16 + 32, min_size);
return av_realloc(ptr, *size);
}
@@ -83,6 +101,8 @@ void *av_mallocz_static(unsigned int size)
if(ptr){
array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1));
+ if(!array_static)
+ return NULL;
array_static[last_static++] = ptr;
}
@@ -90,6 +110,26 @@ void *av_mallocz_static(unsigned int size)
}
/**
+ * same as above, but does realloc
+ */
+
+void *av_realloc_static(void *ptr, unsigned int size)
+{
+ int i;
+ if(!ptr)
+ return av_mallocz_static(size);
+ /* Look for the old ptr */
+ for(i = 0; i < last_static; i++) {
+ if(array_static[i] == ptr) {
+ array_static[i] = av_realloc(array_static[i], size);
+ return array_static[i];
+ }
+ }
+ return NULL;
+
+}
+
+/**
* free all static arrays and reset pointers to 0.
*/
void av_free_static(void)
@@ -112,7 +152,7 @@ void av_freep(void *arg)
}
/* encoder management */
-AVCodec *first_avcodec;
+AVCodec *first_avcodec = NULL;
void register_avcodec(AVCodec *format)
{
@@ -123,6 +163,13 @@ void register_avcodec(AVCodec *format)
format->next = NULL;
}
+void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
+ s->coded_width = width;
+ s->coded_height= height;
+ s->width = -((-width )>>s->lowres);
+ s->height= -((-height)>>s->lowres);
+}
+
typedef struct InternalBuffer{
int last_pic_num;
uint8_t *base[4];
@@ -141,6 +188,7 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
switch(s->pix_fmt){
case PIX_FMT_YUV420P:
case PIX_FMT_YUV422:
+ case PIX_FMT_UYVY422:
case PIX_FMT_YUV422P:
case PIX_FMT_YUV444P:
case PIX_FMT_GRAY8:
@@ -151,6 +199,7 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
h_align= 16;
break;
case PIX_FMT_YUV411P:
+ case PIX_FMT_UYVY411:
w_align=32;
h_align=8;
break;
@@ -159,6 +208,22 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
w_align=64;
h_align=64;
}
+ case PIX_FMT_RGB555:
+ if(s->codec_id == CODEC_ID_RPZA){
+ w_align=4;
+ h_align=4;
+ }
+ case PIX_FMT_PAL8:
+ if(s->codec_id == CODEC_ID_SMC){
+ w_align=4;
+ h_align=4;
+ }
+ break;
+ case PIX_FMT_BGR24:
+ if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
+ w_align=4;
+ h_align=4;
+ }
break;
default:
w_align= 1;
@@ -170,16 +235,27 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
*height= ALIGN(*height, h_align);
}
+int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
+ if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
+ return 0;
+
+ av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
+ return -1;
+}
+
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
int i;
int w= s->width;
int h= s->height;
InternalBuffer *buf;
int *picture_number;
-
+
assert(pic->data[0]==NULL);
assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count);
+ if(avcodec_check_dimensions(s,w,h))
+ return -1;
+
if(s->internal_buffer==NULL){
s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer));
}
@@ -200,7 +276,7 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
buf->last_pic_num= *picture_number;
}else{
int h_chroma_shift, v_chroma_shift;
- int s_align, pixel_size;
+ int pixel_size;
avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
@@ -208,6 +284,7 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
case PIX_FMT_RGB555:
case PIX_FMT_RGB565:
case PIX_FMT_YUV422:
+ case PIX_FMT_UYVY422:
pixel_size=2;
break;
case PIX_FMT_RGB24:
@@ -222,11 +299,6 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
}
avcodec_align_dimensions(s, &w, &h);
-#if defined(ARCH_POWERPC) || defined(HAVE_MMI) //FIXME some cleaner check
- s_align= 16;
-#else
- s_align= 8;
-#endif
if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
w+= EDGE_WIDTH*2;
@@ -240,16 +312,16 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
const int v_shift= i==0 ? 0 : v_chroma_shift;
//FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it
- buf->linesize[i]= ALIGN(pixel_size*w>>h_shift, s_align<<(h_chroma_shift-h_shift));
+ buf->linesize[i]= ALIGN(pixel_size*w>>h_shift, STRIDE_ALIGN<<(h_chroma_shift-h_shift));
- buf->base[i]= av_mallocz((buf->linesize[i]*h>>v_shift)+16); //FIXME 16
+ buf->base[i]= av_malloc((buf->linesize[i]*h>>v_shift)+16); //FIXME 16
if(buf->base[i]==NULL) return -1;
memset(buf->base[i], 128, buf->linesize[i]*h>>v_shift);
if(s->flags&CODEC_FLAG_EMU_EDGE)
buf->data[i] = buf->base[i];
else
- buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), s_align);
+ buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
}
pic->age= 256*256*256*64;
}
@@ -358,8 +430,8 @@ void avcodec_get_context_defaults(AVCodecContext *s){
s->bit_rate_tolerance= s->bit_rate*10;
s->qmin= 2;
s->qmax= 31;
- s->mb_qmin= 2;
- s->mb_qmax= 31;
+ s->mb_lmin= FF_QP2LAMBDA * 2;
+ s->mb_lmax= FF_QP2LAMBDA * 31;
s->rc_eq= "tex^qComp";
s->qcompress= 0.5;
s->max_qdiff= 3;
@@ -384,6 +456,9 @@ void avcodec_get_context_defaults(AVCodecContext *s){
s->lmax= FF_QP2LAMBDA * s->qmax;
s->sample_aspect_ratio= (AVRational){0,1};
s->ildct_cmp= FF_CMP_VSAD;
+ s->profile= FF_PROFILE_UNKNOWN;
+ s->level= FF_LEVEL_UNKNOWN;
+ s->me_penalty_compensation= 256;
s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
@@ -409,6 +484,7 @@ void avcodec_get_frame_defaults(AVFrame *pic){
memset(pic, 0, sizeof(AVFrame));
pic->pts= AV_NOPTS_VALUE;
+ pic->key_frame= 1;
}
/**
@@ -442,6 +518,17 @@ int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
} else {
avctx->priv_data = NULL;
}
+
+ if(avctx->coded_width && avctx->coded_height)
+ avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
+ else if(avctx->width && avctx->height)
+ avcodec_set_dimensions(avctx, avctx->width, avctx->height);
+
+ if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
+ av_freep(&avctx->priv_data);
+ return -1;
+ }
+
ret = avctx->codec->init(avctx);
if (ret < 0) {
av_freep(&avctx->priv_data);
@@ -453,24 +540,35 @@ int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
const short *samples)
{
- int ret;
-
- ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
- avctx->frame_number++;
- return ret;
+ if(buf_size < FF_MIN_BUFFER_SIZE && 0){
+ av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
+ return -1;
+ }
+ if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
+ int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
+ avctx->frame_number++;
+ return ret;
+ }else
+ return 0;
}
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
const AVFrame *pict)
{
- int ret;
-
- ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
+ if(buf_size < FF_MIN_BUFFER_SIZE){
+ av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
+ return -1;
+ }
+ if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
+ return -1;
+ if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
+ int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
+ avctx->frame_number++;
+ emms_c(); //needed to avoid a emms_c() call before every return;
- emms_c(); //needed to avoid a emms_c() call before every return;
-
- avctx->frame_number++;
- return ret;
+ return ret;
+ }else
+ return 0;
}
/**
@@ -489,13 +587,19 @@ int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
int ret;
*got_picture_ptr= 0;
- ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
- buf, buf_size);
+ if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
+ return -1;
+ if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
+ ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
+ buf, buf_size);
- emms_c(); //needed to avoid a emms_c() call before every return;
+ emms_c(); //needed to avoid a emms_c() call before every return;
- if (*got_picture_ptr)
- avctx->frame_number++;
+ if (*got_picture_ptr)
+ avctx->frame_number++;
+ }else
+ ret= 0;
+
return ret;
}
@@ -574,18 +678,6 @@ AVCodec *avcodec_find_decoder_by_name(const char *name)
return NULL;
}
-static AVCodec *avcodec_find(enum CodecID id)
-{
- AVCodec *p;
- p = first_avcodec;
- while (p) {
- if (p->id == id)
- return p;
- p = p->next;
- }
- return NULL;
-}
-
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
{
const char *codec_name;
@@ -664,7 +756,7 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
strcpy(channels_str, "5:1");
break;
default:
- sprintf(channels_str, "%d channels", enc->channels);
+ snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
break;
}
if (enc->sample_rate) {
@@ -698,7 +790,8 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
bitrate = enc->bit_rate;
break;
default:
- av_abort();
+ snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
+ return;
}
if (encode) {
if (enc->flags & CODEC_FLAG_PASS1)
@@ -745,7 +838,7 @@ void avcodec_flush_buffers(AVCodecContext *avctx)
avctx->codec->flush(avctx);
}
-static void avcodec_default_free_buffers(AVCodecContext *s){
+void avcodec_default_free_buffers(AVCodecContext *s){
int i, j;
if(s->internal_buffer==NULL) return;
@@ -775,70 +868,70 @@ char av_get_pict_type_char(int pict_type){
}
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max){
- int exact=1, sign=0;
- int64_t gcd;
-
- assert(den != 0);
-
- if(den < 0)
- return av_reduce(dst_nom, dst_den, -nom, -den, max);
-
- sign= nom < 0;
- nom= ABS(nom);
-
- gcd = ff_gcd(nom, den);
- nom /= gcd;
- den /= gcd;
-
- if(nom > max || den > max){
- AVRational a0={0,1}, a1={1,0};
- exact=0;
-
- for(;;){
- int64_t x= nom / den;
- int64_t a2n= x*a1.num + a0.num;
- int64_t a2d= x*a1.den + a0.den;
-
- if(a2n > max || a2d > max) break;
-
- nom %= den;
-
- a0= a1;
- a1= (AVRational){a2n, a2d};
- if(nom==0) break;
- x= nom; nom=den; den=x;
- }
- nom= a1.num;
- den= a1.den;
+ AVRational a0={0,1}, a1={1,0};
+ int sign= (nom<0) ^ (den<0);
+ int64_t gcd= ff_gcd(ABS(nom), ABS(den));
+
+ nom = ABS(nom)/gcd;
+ den = ABS(den)/gcd;
+ if(nom<=max && den<=max){
+ a1= (AVRational){nom, den};
+ den=0;
}
- assert(ff_gcd(nom, den) == 1);
+ while(den){
+ int64_t x = nom / den;
+ int64_t next_den= nom - den*x;
+ int64_t a2n= x*a1.num + a0.num;
+ int64_t a2d= x*a1.den + a0.den;
+
+ if(a2n > max || a2d > max) break;
+
+ a0= a1;
+ a1= (AVRational){a2n, a2d};
+ nom= den;
+ den= next_den;
+ }
+ assert(ff_gcd(a1.num, a1.den) == 1);
- *dst_nom = sign ? -nom : nom;
- *dst_den = den;
+ *dst_nom = sign ? -a1.num : a1.num;
+ *dst_den = a1.den;
- return exact;
+ return den==0;
}
-int64_t av_rescale(int64_t a, int64_t b, int64_t c){
- AVInteger ai, ci;
+int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd){
+ AVInteger ai;
+ int64_t r=0;
assert(c > 0);
assert(b >=0);
+ assert(rnd >=0 && rnd<=5 && rnd!=4);
- if(a<0) return -av_rescale(-a, b, c);
+ if(a<0 && a != INT64_MIN) return -av_rescale_rnd(-a, b, c, rnd ^ ((rnd>>1)&1));
+ if(rnd==AV_ROUND_NEAR_INF) r= c/2;
+ else if(rnd&1) r= c-1;
+
if(b<=INT_MAX && c<=INT_MAX){
if(a<=INT_MAX)
- return (a * b + c/2)/c;
+ return (a * b + r)/c;
else
- return a/c*b + (a%c*b + c/2)/c;
+ return a/c*b + (a%c*b + r)/c;
}
ai= av_mul_i(av_int2i(a), av_int2i(b));
- ci= av_int2i(c);
- ai= av_add_i(ai, av_shr_i(ci,1));
+ ai= av_add_i(ai, av_int2i(r));
- return av_i2int(av_div_i(ai, ci));
+ return av_i2int(av_div_i(ai, av_int2i(c)));
+}
+
+int64_t av_rescale(int64_t a, int64_t b, int64_t c){
+ return av_rescale_rnd(a, b, c, AV_ROUND_NEAR_INF);
+}
+
+int64_t ff_gcd(int64_t a, int64_t b){
+ if(b) return ff_gcd(b, a%b);
+ else return a;
}
/* av_log API */
@@ -892,7 +985,7 @@ void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
av_log_callback = callback;
}
-#if !defined(HAVE_PTHREADS) && !defined(HAVE_W32THREADS)
+#if !defined(HAVE_THREADS)
int avcodec_thread_init(AVCodecContext *s, int thread_count){
return -1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 20:56:45 +0000