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mess cleanup 

Originally committed as revision 3449 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-09-10 18:54:02 +00:00
parent d58a6d8537
commit c32b14bb9c
2 changed files with 14 additions and 17 deletions
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29
libavcodec/mpeg12.c
View File

@ -1914,6 +1914,7 @@ typedef struct Mpeg1Context {
int slice_count;
int swap_uv;//indicate VCR2
int save_aspect_info;
AVRational frame_rate_ext; ///< MPEG-2 specific framerate modificator
} Mpeg1Context;
@ -1946,8 +1947,8 @@ static int mpeg_decode_init(AVCodecContext *avctx)
static void quant_matrix_rebuild(uint16_t *matrix, const uint8_t *old_perm,
const uint8_t *new_perm){
uint16_t temp_matrix[64];
int i;
uint16_t temp_matrix[64];
int i;
memcpy(temp_matrix,matrix,64*sizeof(uint16_t));
@ -1959,10 +1960,9 @@ int i;
//Call this function when we know all parameters
//it may be called in different places for mpeg1 and mpeg2
static int mpeg_decode_postinit(AVCodecContext *avctx){
Mpeg1Context *s1 = avctx->priv_data;
MpegEncContext *s = &s1->mpeg_enc_ctx;
uint8_t old_permutation[64];
Mpeg1Context *s1 = avctx->priv_data;
MpegEncContext *s = &s1->mpeg_enc_ctx;
uint8_t old_permutation[64];
if (
(s1->mpeg_enc_ctx_allocated == 0)||
@ -2001,8 +2001,8 @@ uint8_t old_permutation[64];
av_reduce(
&s->avctx->frame_rate,
&s->avctx->frame_rate_base,
frame_rate_tab[s->frame_rate_index].num * (s->frame_rate_ext_n+1),
frame_rate_tab[s->frame_rate_index].den * (s->frame_rate_ext_d+1),
frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num,
frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den,
1<<30);
//mpeg2 aspect
if(s->aspect_ratio_info > 1){
@ -2131,8 +2131,9 @@ static int mpeg1_decode_picture(AVCodecContext *avctx,
return 0;
}
static void mpeg_decode_sequence_extension(MpegEncContext *s)
static void mpeg_decode_sequence_extension(Mpeg1Context *s1)
{
MpegEncContext *s= &s1->mpeg_enc_ctx;
int horiz_size_ext, vert_size_ext;
int bit_rate_ext;
@ -2153,8 +2154,8 @@ static void mpeg_decode_sequence_extension(MpegEncContext *s)
s->low_delay = get_bits1(&s->gb);
if(s->flags & CODEC_FLAG_LOW_DELAY) s->low_delay=1;
s->frame_rate_ext_n = get_bits(&s->gb, 2);
s->frame_rate_ext_d = get_bits(&s->gb, 5);
s1->frame_rate_ext.num = get_bits(&s->gb, 2)+1;
s1->frame_rate_ext.den = get_bits(&s->gb, 5)+1;
dprintf("sequence extension\n");
s->codec_id= s->avctx->codec_id= CODEC_ID_MPEG2VIDEO;
@ -2320,7 +2321,7 @@ static void mpeg_decode_extension(AVCodecContext *avctx,
ext_type = get_bits(&s->gb, 4);
switch(ext_type) {
case 0x1:
mpeg_decode_sequence_extension(s);
mpeg_decode_sequence_extension(s1);
break;
case 0x2:
mpeg_decode_sequence_display_extension(s1);
@ -2338,9 +2339,7 @@ static void mpeg_decode_extension(AVCodecContext *avctx,
}
static void exchange_uv(MpegEncContext *s){
short * tmp;
tmp = s->pblocks[4];
short * tmp = s->pblocks[4];
s->pblocks[4] = s->pblocks[5];
s->pblocks[5] = tmp;
}

2
libavcodec/mpegvideo.h
View File

@ -369,8 +369,6 @@ typedef struct MpegEncContext {
int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
int dropable;
int frame_rate_index;
int frame_rate_ext_n; ///< MPEG-2 specific framerate modificators (numerator)
int frame_rate_ext_d; ///< MPEG-2 specific framerate modificators (denominator)
/* motion compensation */
int unrestricted_mv; ///< mv can point outside of the coded picture