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Merge commit 'd5c62122a7b26704bf867a1262df358623bf5edf'

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* commit 'd5c62122a7b26704bf867a1262df358623bf5edf':
  Move av_reverse table to libavcodec

Conflicts:
	libavcodec/asvenc.c
	libavcodec/vble.c
	libavutil/common.h
	libavutil/mathematics.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-10-13 14:35:42 +02:00
commit d6c342fdc0
16 changed files with 89 additions and 48 deletions
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7
libavcodec/asvdec.c
View File

@ -23,13 +23,14 @@
* ASUS V1/V2 decoder. * ASUS V1/V2 decoder.
*/ */
#include "libavutil/common.h" #include "libavutil/attributes.h"
#include "libavutil/mem.h" #include "libavutil/mem.h"
#include "asv.h" #include "asv.h"
#include "avcodec.h" #include "avcodec.h"
#include "put_bits.h" #include "put_bits.h"
#include "dsputil.h" #include "dsputil.h"
#include "mathops.h"
#include "mpeg12data.h" #include "mpeg12data.h"
#define VLC_BITS 6 #define VLC_BITS 6
@ -67,7 +68,7 @@ static av_cold void init_vlcs(ASV1Context *a){
//FIXME write a reversed bitstream reader to avoid the double reverse //FIXME write a reversed bitstream reader to avoid the double reverse
static inline int asv2_get_bits(GetBitContext *gb, int n){ static inline int asv2_get_bits(GetBitContext *gb, int n){
return av_reverse[ get_bits(gb, n) << (8-n) ]; return ff_reverse[ get_bits(gb, n) << (8-n) ];
} }
static inline int asv1_get_level(GetBitContext *gb){ static inline int asv1_get_level(GetBitContext *gb){
@ -207,7 +208,7 @@ static int decode_frame(AVCodecContext *avctx,
else{ else{
int i; int i;
for(i=0; i<buf_size; i++) for(i=0; i<buf_size; i++)
a->bitstream_buffer[i]= av_reverse[ buf[i] ]; a->bitstream_buffer[i]= ff_reverse[ buf[i] ];
} }
init_get_bits(&a->gb, a->bitstream_buffer, buf_size*8); init_get_bits(&a->gb, a->bitstream_buffer, buf_size*8);

7
libavcodec/asvenc.c
View File

@ -23,16 +23,17 @@
* ASUS V1/V2 encoder. * ASUS V1/V2 encoder.
*/ */
#include "libavutil/common.h" #include "libavutil/attributes.h"
#include "libavutil/mem.h" #include "libavutil/mem.h"
#include "asv.h" #include "asv.h"
#include "avcodec.h" #include "avcodec.h"
#include "internal.h" #include "internal.h"
#include "mathops.h"
#include "mpeg12data.h" #include "mpeg12data.h"
static inline void asv2_put_bits(PutBitContext *pb, int n, int v){ static inline void asv2_put_bits(PutBitContext *pb, int n, int v){
put_bits(pb, n, av_reverse[ v << (8-n) ]); put_bits(pb, n, ff_reverse[ v << (8-n) ]);
} }
static inline void asv1_put_level(PutBitContext *pb, int level){ static inline void asv1_put_level(PutBitContext *pb, int level){
@ -224,7 +225,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
else{ else{
int i; int i;
for(i=0; i<4*size; i++) for(i=0; i<4*size; i++)
pkt->data[i] = av_reverse[pkt->data[i]]; pkt->data[i] = ff_reverse[pkt->data[i]];
} }
pkt->size = size*4; pkt->size = size*4;

9
libavcodec/bitstream.c
View File

@ -30,6 +30,7 @@
#include "libavutil/avassert.h" #include "libavutil/avassert.h"
#include "avcodec.h" #include "avcodec.h"
#include "mathops.h"
#include "get_bits.h" #include "get_bits.h"
#include "put_bits.h" #include "put_bits.h"
@ -115,10 +116,10 @@ static int alloc_table(VLC *vlc, int size, int use_static)
} }
static av_always_inline uint32_t bitswap_32(uint32_t x) { static av_always_inline uint32_t bitswap_32(uint32_t x) {
return (uint32_t)av_reverse[x&0xFF]<<24 return (uint32_t)ff_reverse[x&0xFF]<<24
| (uint32_t)av_reverse[(x>>8)&0xFF]<<16 | (uint32_t)ff_reverse[(x>>8)&0xFF]<<16
| (uint32_t)av_reverse[(x>>16)&0xFF]<<8 | (uint32_t)ff_reverse[(x>>16)&0xFF]<<8
| (uint32_t)av_reverse[x>>24]; | (uint32_t)ff_reverse[x>>24];
} }
typedef struct { typedef struct {

6
libavcodec/indeo2.c
View File

@ -23,11 +23,13 @@
* @file * @file
* Intel Indeo 2 decoder. * Intel Indeo 2 decoder.
*/ */
#define BITSTREAM_READER_LE #define BITSTREAM_READER_LE
#include "libavutil/attributes.h"
#include "avcodec.h" #include "avcodec.h"
#include "get_bits.h" #include "get_bits.h"
#include "indeo2data.h" #include "indeo2data.h"
#include "libavutil/common.h" #include "mathops.h"
typedef struct Ir2Context{ typedef struct Ir2Context{
AVCodecContext *avctx; AVCodecContext *avctx;
@ -165,7 +167,7 @@ static int ir2_decode_frame(AVCodecContext *avctx,
/* decide whether frame uses deltas or not */ /* decide whether frame uses deltas or not */
#ifndef BITSTREAM_READER_LE #ifndef BITSTREAM_READER_LE
for (i = 0; i < buf_size; i++) for (i = 0; i < buf_size; i++)
buf[i] = av_reverse[buf[i]]; buf[i] = ff_reverse[buf[i]];
#endif #endif
init_get_bits(&s->gb, buf + start, (buf_size - start) * 8); init_get_bits(&s->gb, buf + start, (buf_size - start) * 8);

7
libavcodec/ivi_common.c
View File

@ -27,10 +27,11 @@
*/ */
#define BITSTREAM_READER_LE #define BITSTREAM_READER_LE
#include "libavutil/attributes.h"
#include "avcodec.h" #include "avcodec.h"
#include "get_bits.h" #include "get_bits.h"
#include "mathops.h"
#include "ivi_common.h" #include "ivi_common.h"
#include "libavutil/common.h"
#include "ivi_dsp.h" #include "ivi_dsp.h"
extern const IVIHuffDesc ff_ivi_mb_huff_desc[8]; ///< static macroblock huffman tables extern const IVIHuffDesc ff_ivi_mb_huff_desc[8]; ///< static macroblock huffman tables
@ -48,9 +49,9 @@ static uint16_t inv_bits(uint16_t val, int nbits)
uint16_t res; uint16_t res;
if (nbits <= 8) { if (nbits <= 8) {
res = av_reverse[val] >> (8-nbits); res = ff_reverse[val] >> (8-nbits);
} else } else
res = ((av_reverse[val & 0xFF] << 8) + (av_reverse[val >> 8])) >> (16-nbits); res = ((ff_reverse[val & 0xFF] << 8) + (ff_reverse[val >> 8])) >> (16-nbits);
return res; return res;
} }

1
libavcodec/mathops.h
View File

@ -28,6 +28,7 @@
#include "config.h" #include "config.h"
extern const uint32_t ff_inverse[257]; extern const uint32_t ff_inverse[257];
extern const uint8_t ff_reverse[256];
extern const uint8_t ff_sqrt_tab[256]; extern const uint8_t ff_sqrt_tab[256];
#if ARCH_ARM #if ARCH_ARM

19
libavcodec/mathtables.c
View File

@ -68,3 +68,22 @@ const uint8_t ff_sqrt_tab[256]={
222,223,223,224,224,225,226,226,227,227,228,228,229,230,230,231,231,232,232,233,233,234,235,235,236,236,237,237,238,238,239,239, 222,223,223,224,224,225,226,226,227,227,228,228,229,230,230,231,231,232,232,233,233,234,235,235,236,236,237,237,238,238,239,239,
240,240,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,255,255,255 240,240,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,255,255,255
}; };
const uint8_t ff_reverse[256] = {
0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
};

11
libavcodec/pcm.c
View File

@ -24,10 +24,11 @@
* PCM codecs * PCM codecs
*/ */
#include "libavutil/common.h" /* for av_reverse */ #include "libavutil/attributes.h"
#include "avcodec.h" #include "avcodec.h"
#include "bytestream.h" #include "bytestream.h"
#include "internal.h" #include "internal.h"
#include "mathops.h"
#include "pcm_tablegen.h" #include "pcm_tablegen.h"
#define MAX_CHANNELS 64 #define MAX_CHANNELS 64
@ -122,8 +123,8 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
break; break;
case AV_CODEC_ID_PCM_S24DAUD: case AV_CODEC_ID_PCM_S24DAUD:
for (; n > 0; n--) { for (; n > 0; n--) {
uint32_t tmp = av_reverse[(*samples >> 8) & 0xff] + uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] +
(av_reverse[*samples & 0xff] << 8); (ff_reverse[*samples & 0xff] << 8);
tmp <<= 4; // sync flags would go here tmp <<= 4; // sync flags would go here
bytestream_put_be24(&dst, tmp); bytestream_put_be24(&dst, tmp);
samples++; samples++;
@ -334,8 +335,8 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
for (; n > 0; n--) { for (; n > 0; n--) {
uint32_t v = bytestream_get_be24(&src); uint32_t v = bytestream_get_be24(&src);
v >>= 4; // sync flags are here v >>= 4; // sync flags are here
AV_WN16A(samples, av_reverse[(v >> 8) & 0xff] + AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
(av_reverse[v & 0xff] << 8)); (ff_reverse[v & 0xff] << 8));
samples += 2; samples += 2;
} }
break; break;

39
libavcodec/s302m.c
View File

@ -20,9 +20,10 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/ */
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h" #include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "avcodec.h" #include "avcodec.h"
#include "mathops.h"
#define AES3_HEADER_LEN 4 #define AES3_HEADER_LEN 4
@ -118,34 +119,34 @@ static int s302m_decode_frame(AVCodecContext *avctx, void *data,
if (avctx->bits_per_coded_sample == 24) { if (avctx->bits_per_coded_sample == 24) {
uint32_t *o = (uint32_t *)s->frame.data[0]; uint32_t *o = (uint32_t *)s->frame.data[0];
for (; buf_size > 6; buf_size -= 7) { for (; buf_size > 6; buf_size -= 7) {
*o++ = (av_reverse[buf[2]] << 24) | *o++ = (ff_reverse[buf[2]] << 24) |
(av_reverse[buf[1]] << 16) | (ff_reverse[buf[1]] << 16) |
(av_reverse[buf[0]] << 8); (ff_reverse[buf[0]] << 8);
*o++ = (av_reverse[buf[6] & 0xf0] << 28) | *o++ = (ff_reverse[buf[6] & 0xf0] << 28) |
(av_reverse[buf[5]] << 20) | (ff_reverse[buf[5]] << 20) |
(av_reverse[buf[4]] << 12) | (ff_reverse[buf[4]] << 12) |
(av_reverse[buf[3] & 0x0f] << 4); (ff_reverse[buf[3] & 0x0f] << 4);
buf += 7; buf += 7;
} }
} else if (avctx->bits_per_coded_sample == 20) { } else if (avctx->bits_per_coded_sample == 20) {
uint32_t *o = (uint32_t *)s->frame.data[0]; uint32_t *o = (uint32_t *)s->frame.data[0];
for (; buf_size > 5; buf_size -= 6) { for (; buf_size > 5; buf_size -= 6) {
*o++ = (av_reverse[buf[2] & 0xf0] << 28) | *o++ = (ff_reverse[buf[2] & 0xf0] << 28) |
(av_reverse[buf[1]] << 20) | (ff_reverse[buf[1]] << 20) |
(av_reverse[buf[0]] << 12); (ff_reverse[buf[0]] << 12);
*o++ = (av_reverse[buf[5] & 0xf0] << 28) | *o++ = (ff_reverse[buf[5] & 0xf0] << 28) |
(av_reverse[buf[4]] << 20) | (ff_reverse[buf[4]] << 20) |
(av_reverse[buf[3]] << 12); (ff_reverse[buf[3]] << 12);
buf += 6; buf += 6;
} }
} else { } else {
uint16_t *o = (uint16_t *)s->frame.data[0]; uint16_t *o = (uint16_t *)s->frame.data[0];
for (; buf_size > 4; buf_size -= 5) { for (; buf_size > 4; buf_size -= 5) {
*o++ = (av_reverse[buf[1]] << 8) | *o++ = (ff_reverse[buf[1]] << 8) |
av_reverse[buf[0]]; ff_reverse[buf[0]];
*o++ = (av_reverse[buf[4] & 0xf0] << 12) | *o++ = (ff_reverse[buf[4] & 0xf0] << 12) |
(av_reverse[buf[3]] << 4) | (ff_reverse[buf[3]] << 4) |
(av_reverse[buf[2]] >> 4); (ff_reverse[buf[2]] >> 4);
buf += 5; buf += 5;
} }
} }

7
libavcodec/tiff.c
View File

@ -34,7 +34,8 @@
#include "tiff.h" #include "tiff.h"
#include "tiff_data.h" #include "tiff_data.h"
#include "faxcompr.h" #include "faxcompr.h"
#include "libavutil/common.h" #include "mathops.h"
#include "libavutil/attributes.h"
#include "libavutil/intreadwrite.h" #include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h" #include "libavutil/imgutils.h"
#include "libavutil/avstring.h" #include "libavutil/avstring.h"
@ -458,7 +459,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
memcpy(src2, src, size); memcpy(src2, src, size);
} else { } else {
for (i = 0; i < size; i++) for (i = 0; i < size; i++)
src2[i] = av_reverse[src[i]]; src2[i] = ff_reverse[src[i]];
} }
memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE); memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
switch (s->compr) { switch (s->compr) {
@ -492,7 +493,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
} else { } else {
int i; int i;
for (i = 0; i < width; i++) for (i = 0; i < width; i++)
dst[i] = av_reverse[src[i]]; dst[i] = ff_reverse[src[i]];
} }
src += width; src += width;
break; break;

1
libavcodec/vble.c
View File

@ -29,6 +29,7 @@
#include "avcodec.h" #include "avcodec.h"
#include "dsputil.h" #include "dsputil.h"
#include "get_bits.h" #include "get_bits.h"
#include "mathops.h"
typedef struct { typedef struct {
AVCodecContext *avctx; AVCodecContext *avctx;

6
libavcodec/wnv1.c
View File

@ -26,7 +26,7 @@
#include "avcodec.h" #include "avcodec.h"
#include "get_bits.h" #include "get_bits.h"
#include "libavutil/common.h" #include "mathops.h"
typedef struct WNV1Context{ typedef struct WNV1Context{
@ -52,7 +52,7 @@ static inline int wnv1_get_code(WNV1Context *w, int base_value)
int v = get_vlc2(&w->gb, code_vlc.table, CODE_VLC_BITS, 1); int v = get_vlc2(&w->gb, code_vlc.table, CODE_VLC_BITS, 1);
if(v==15) if(v==15)
return av_reverse[ get_bits(&w->gb, 8 - w->shift) ]; return ff_reverse[ get_bits(&w->gb, 8 - w->shift) ];
else else
return base_value + ((v - 7)<<w->shift); return base_value + ((v - 7)<<w->shift);
} }
@ -93,7 +93,7 @@ static int decode_frame(AVCodecContext *avctx,
p->key_frame = 1; p->key_frame = 1;
for(i=8; i<buf_size; i++) for(i=8; i<buf_size; i++)
rbuf[i]= av_reverse[ buf[i] ]; rbuf[i]= ff_reverse[ buf[i] ];
init_get_bits(&l->gb, rbuf+8, (buf_size-8)*8); init_get_bits(&l->gb, rbuf+8, (buf_size-8)*8);
if (buf[2] >> 4 == 6) if (buf[2] >> 4 == 6)

4
libavcodec/xbmenc.c
View File

@ -22,7 +22,7 @@
#include "avcodec.h" #include "avcodec.h"
#include "internal.h" #include "internal.h"
#include "libavutil/common.h" #include "mathops.h"
static av_cold int xbm_encode_init(AVCodecContext *avctx) static av_cold int xbm_encode_init(AVCodecContext *avctx)
{ {
@ -53,7 +53,7 @@ static int xbm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
buf += snprintf(buf, 40, "static unsigned char image_bits[] = {\n"); buf += snprintf(buf, 40, "static unsigned char image_bits[] = {\n");
for (i = 0; i < avctx->height; i++) { for (i = 0; i < avctx->height; i++) {
for (j = 0; j < linesize; j++) for (j = 0; j < linesize; j++)
buf += snprintf(buf, 7, " 0x%02X,", av_reverse[*ptr++]); buf += snprintf(buf, 7, " 0x%02X,", ff_reverse[*ptr++]);
ptr += p->linesize[0] - linesize; ptr += p->linesize[0] - linesize;
buf += snprintf(buf, 2, "\n"); buf += snprintf(buf, 2, "\n");
} }

6
libavutil/common.h
View File

@ -34,7 +34,9 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include "attributes.h" #include "attributes.h"
#include "version.h"
#include "libavutil/avconfig.h" #include "libavutil/avconfig.h"
#if AV_HAVE_BIGENDIAN #if AV_HAVE_BIGENDIAN
@ -67,7 +69,9 @@ extern const uint8_t ff_log2_tab[256];
/** /**
* Reverse the order of the bits of an 8-bits unsigned integer. * Reverse the order of the bits of an 8-bits unsigned integer.
*/ */
extern const uint8_t av_reverse[256]; #if FF_API_AV_REVERSE
extern attribute_deprecated const uint8_t av_reverse[256];
#endif
static av_always_inline av_const int av_log2_c(unsigned int v) static av_always_inline av_const int av_log2_c(unsigned int v)
{ {

4
libavutil/mathematics.c
View File

@ -25,10 +25,13 @@
#include <stdint.h> #include <stdint.h>
#include <limits.h> #include <limits.h>
#include "mathematics.h" #include "mathematics.h"
#include "libavutil/common.h" #include "libavutil/common.h"
#include "avassert.h" #include "avassert.h"
#include "version.h"
#if FF_API_AV_REVERSE
const uint8_t av_reverse[256]={ const uint8_t av_reverse[256]={
0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0, 0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8, 0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
@ -47,6 +50,7 @@ const uint8_t av_reverse[256]={
0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7, 0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF, 0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
}; };
#endif
int64_t av_gcd(int64_t a, int64_t b){ int64_t av_gcd(int64_t a, int64_t b){
if(b) return av_gcd(b, a%b); if(b) return av_gcd(b, a%b);

3
libavutil/version.h
View File

@ -90,6 +90,9 @@
#ifndef FF_API_PIX_FMT_DESC #ifndef FF_API_PIX_FMT_DESC
#define FF_API_PIX_FMT_DESC (LIBAVUTIL_VERSION_MAJOR < 52) #define FF_API_PIX_FMT_DESC (LIBAVUTIL_VERSION_MAJOR < 52)
#endif #endif
#ifndef FF_API_AV_REVERSE
#define FF_API_AV_REVERSE (LIBAVUTIL_VERSION_MAJOR < 52)
#endif
/** /**
* @} * @}