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mpeg4video: K&R formatting cosmetics

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Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Vittorio Giovara 2013-10-28 18:31:07 +01:00 committed by Diego Biurrun
parent 037fea388e
commit dc6ea00cd2
2 changed files with 154 additions and 127 deletions
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66
libavcodec/mpeg4video.c
View File

@ -26,7 +26,8 @@
uint8_t ff_mpeg4_static_rl_table_store[3][2][2 * MAX_RUN + MAX_LEVEL + 3];
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s){
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s)
{
switch (s->pict_type) {
case AV_PICTURE_TYPE_I:
return 16;
@ -64,7 +65,8 @@ void ff_mpeg4_clean_buffers(MpegEncContext *s)
/* clean MV */
// we can't clear the MVs as they might be needed by a b frame
// memset(s->motion_val + l_xy, 0, (l_wrap * 2 + 1) * 2 * sizeof(int16_t));
// memset(s->motion_val, 0, 2*sizeof(int16_t)*(2 + s->mb_width*2)*(2 + s->mb_height*2));
// memset(s->motion_val, 0, 2 * sizeof(int16_t) * (2 + s->mb_width * 2) *
// (2 + s->mb_height * 2));
s->last_mv[0][0][0] =
s->last_mv[0][0][1] =
s->last_mv[1][0][0] =
@ -75,15 +77,19 @@ void ff_mpeg4_clean_buffers(MpegEncContext *s)
#define tab_bias (tab_size / 2)
// used by mpeg4 and rv10 decoder
void ff_mpeg4_init_direct_mv(MpegEncContext *s){
void ff_mpeg4_init_direct_mv(MpegEncContext *s)
{
int i;
for (i = 0; i < tab_size; i++) {
s->direct_scale_mv[0][i] = (i - tab_bias) * s->pb_time / s->pp_time;
s->direct_scale_mv[1][i] = (i-tab_bias)*(s->pb_time-s->pp_time)/s->pp_time;
s->direct_scale_mv[1][i] = (i - tab_bias) * (s->pb_time - s->pp_time) /
s->pp_time;
}
}
static inline void ff_mpeg4_set_one_direct_mv(MpegEncContext *s, int mx, int my, int i){
static inline void ff_mpeg4_set_one_direct_mv(MpegEncContext *s, int mx,
int my, int i)
{
int xy = s->block_index[i];
uint16_t time_pp = s->pp_time;
uint16_t time_pb = s->pb_time;
@ -115,10 +121,10 @@ static inline void ff_mpeg4_set_one_direct_mv(MpegEncContext *s, int mx, int my,
#undef tab_bias
/**
*
* @return the mb_type
*/
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my){
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my)
{
const int mb_index = s->mb_x + s->mb_y * s->mb_stride;
const int colocated_mb_type = s->next_picture.mb_type[mb_index];
uint16_t time_pp;
@ -130,9 +136,8 @@ int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my){
if (IS_8X8(colocated_mb_type)) {
s->mv_type = MV_TYPE_8X8;
for(i=0; i<4; i++){
for (i = 0; i < 4; i++)
ff_mpeg4_set_one_direct_mv(s, mx, my, i);
}
return MB_TYPE_DIRECT2 | MB_TYPE_8x8 | MB_TYPE_L0L1;
} else if (IS_INTERLACED(colocated_mb_type)) {
s->mv_type = MV_TYPE_FIELD;
@ -147,24 +152,41 @@ int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my){
time_pp = s->pp_field_time + field_select - i;
time_pb = s->pb_field_time + field_select - i;
}
s->mv[0][i][0] = s->p_field_mv_table[i][0][mb_index][0]*time_pb/time_pp + mx;
s->mv[0][i][1] = s->p_field_mv_table[i][0][mb_index][1]*time_pb/time_pp + my;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->p_field_mv_table[i][0][mb_index][0]
: s->p_field_mv_table[i][0][mb_index][0]*(time_pb - time_pp)/time_pp;
s->mv[1][i][1] = my ? s->mv[0][i][1] - s->p_field_mv_table[i][0][mb_index][1]
: s->p_field_mv_table[i][0][mb_index][1]*(time_pb - time_pp)/time_pp;
s->mv[0][i][0] = s->p_field_mv_table[i][0][mb_index][0] *
time_pb / time_pp + mx;
s->mv[0][i][1] = s->p_field_mv_table[i][0][mb_index][1] *
time_pb / time_pp + my;
s->mv[1][i][0] = mx ? s->mv[0][i][0] -
s->p_field_mv_table[i][0][mb_index][0]
: s->p_field_mv_table[i][0][mb_index][0] *
(time_pb - time_pp) / time_pp;
s->mv[1][i][1] = my ? s->mv[0][i][1] -
s->p_field_mv_table[i][0][mb_index][1]
: s->p_field_mv_table[i][0][mb_index][1] *
(time_pb - time_pp) / time_pp;
}
return MB_TYPE_DIRECT2 | MB_TYPE_16x8 | MB_TYPE_L0L1 | MB_TYPE_INTERLACED;
return MB_TYPE_DIRECT2 | MB_TYPE_16x8 |
MB_TYPE_L0L1 | MB_TYPE_INTERLACED;
} else {
ff_mpeg4_set_one_direct_mv(s, mx, my, 0);
s->mv[0][1][0] = s->mv[0][2][0] = s->mv[0][3][0] = s->mv[0][0][0];
s->mv[0][1][1] = s->mv[0][2][1] = s->mv[0][3][1] = s->mv[0][0][1];
s->mv[1][1][0] = s->mv[1][2][0] = s->mv[1][3][0] = s->mv[1][0][0];
s->mv[1][1][1] = s->mv[1][2][1] = s->mv[1][3][1] = s->mv[1][0][1];
if((s->avctx->workaround_bugs & FF_BUG_DIRECT_BLOCKSIZE) || !s->quarter_sample)
s->mv[0][1][0] =
s->mv[0][2][0] =
s->mv[0][3][0] = s->mv[0][0][0];
s->mv[0][1][1] =
s->mv[0][2][1] =
s->mv[0][3][1] = s->mv[0][0][1];
s->mv[1][1][0] =
s->mv[1][2][0] =
s->mv[1][3][0] = s->mv[1][0][0];
s->mv[1][1][1] =
s->mv[1][2][1] =
s->mv[1][3][1] = s->mv[1][0][1];
if ((s->avctx->workaround_bugs & FF_BUG_DIRECT_BLOCKSIZE) ||
!s->quarter_sample)
s->mv_type = MV_TYPE_16X16;
else
s->mv_type = MV_TYPE_8X8;
return MB_TYPE_DIRECT2 | MB_TYPE_16x16 | MB_TYPE_L0L1; //Note see prev line
// Note see prev line
return MB_TYPE_DIRECT2 | MB_TYPE_16x16 | MB_TYPE_L0L1;
}
}

27
libavcodec/mpeg4video.h
View File

@ -24,6 +24,7 @@
#define AVCODEC_MPEG4VIDEO_H
#include <stdint.h>
#include "get_bits.h"
#include "mpegvideo.h"
#include "rl.h"
@ -113,14 +114,12 @@ int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2 * MAX_RUN + MAX_LEVEL + 3];
#if 0 //3IV1 is quite rare and it slows things down a tiny bit
#define IS_3IV1 s->codec_tag == AV_RL32("3IV1")
#else
#define IS_3IV1 0
#endif
/**
* Predict the dc.
* encoding quantized level -> quantized diff
@ -128,17 +127,17 @@ extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2*MAX_RUN + MAX_LEVEL + 3];
* @param n block index (0-3 are luma, 4-5 are chroma)
* @param dir_ptr pointer to an integer where the prediction direction will be stored
*/
static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, int level, int *dir_ptr, int encoding)
static inline int ff_mpeg4_pred_dc(MpegEncContext *s, int n, int level,
int *dir_ptr, int encoding)
{
int a, b, c, wrap, pred, scale, ret;
int16_t *dc_val;
/* find prediction */
if (n < 4) {
if (n < 4)
scale = s->y_dc_scale;
} else {
else
scale = s->c_dc_scale;
}
if (IS_3IV1)
scale = 8;
@ -152,10 +151,13 @@ static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, int level, int *di
b = dc_val[-1 - wrap];
c = dc_val[-wrap];
/* outside slice handling (we can't do that by memset as we need the dc for error resilience) */
/* outside slice handling (we can't do that by memset as we need the
* dc for error resilience) */
if (s->first_slice_line && n != 3) {
if(n!=2) b=c= 1024;
if(n!=1 && s->mb_x == s->resync_mb_x) b=a= 1024;
if (n != 2)
b = c = 1024;
if (n != 1 && s->mb_x == s->resync_mb_x)
b = a = 1024;
}
if (s->mb_x == s->resync_mb_x && s->mb_y == s->resync_mb_y + 1) {
if (n == 0 || n == 4 || n == 5)
@ -179,11 +181,13 @@ static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, int level, int *di
ret = level;
if (s->err_recognition & AV_EF_BITSTREAM) {
if (level < 0) {
av_log(s->avctx, AV_LOG_ERROR, "dc<0 at %dx%d\n", s->mb_x, s->mb_y);
av_log(s->avctx, AV_LOG_ERROR,
"dc<0 at %dx%d\n", s->mb_x, s->mb_y);
return -1;
}
if (level * scale > 2048 + scale) {
av_log(s->avctx, AV_LOG_ERROR, "dc overflow at %dx%d\n", s->mb_x, s->mb_y);
av_log(s->avctx, AV_LOG_ERROR,
"dc overflow at %dx%d\n", s->mb_x, s->mb_y);
return -1;
}
}
@ -199,4 +203,5 @@ static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, int level, int *di
return ret;
}
#endif /* AVCODEC_MPEG4VIDEO_H */