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H264 decoder & demuxer

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Originally committed as revision 1732 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2003-04-04 14:42:28 +00:00
parent 6aafe463e5
commit 0da71265d8
13 changed files with 5904 additions and 16 deletions
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63
libavcodec/mpegvideo.h
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@@ -33,6 +33,7 @@ enum OutputFormat {
FMT_MPEG1,
FMT_H263,
FMT_MJPEG,
FMT_H264,
};
#define EDGE_WIDTH 16
@@ -59,6 +60,8 @@ enum OutputFormat {
#define P_TYPE FF_P_TYPE ///< Predicted
#define B_TYPE FF_B_TYPE ///< Bi-dir predicted
#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4
#define SI_TYPE FF_SI_TYPE ///< Switching Intra
#define SP_TYPE FF_SP_TYPE ///< Switching Predicted
typedef struct Predictor{
double coeff;
@@ -127,6 +130,57 @@ typedef struct ScanTable{
typedef struct Picture{
FF_COMMON_FRAME
/**
* halfpel luma planes.
*/
uint8_t *interpolated[3];
int16_t (*motion_val[2])[2];
int8_t *ref_index[2];
uint16_t *mb_type_base;
uint16_t *mb_type; ///< mb_type_base + mb_width + 2
#define MB_TYPE_INTRA4x4 0x0001
#define MB_TYPE_INTRA16x16 0x0002
#define MB_TYPE_INTRA_PCM 0x0004
#define MB_TYPE_16x16 0x0008
#define MB_TYPE_16x8 0x0010
#define MB_TYPE_8x16 0x0020
#define MB_TYPE_8x8 0x0040
#define MB_TYPE_INTERLACED 0x0080
#define MB_TYPE_DIRECT2 0x0100 //FIXME
#define MB_TYPE_REF0 0x0200
#define MB_TYPE_GMC2 0x0400 //FIXME
#define MB_TYPE_P0L0 0x1000
#define MB_TYPE_P1L0 0x2000
#define MB_TYPE_P0L1 0x4000
#define MB_TYPE_P1L1 0x8000
#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
#define IS_INTRA(a) ((a)&3)
#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
#define IS_16X16(a) ((a)&MB_TYPE_16x16)
#define IS_16X8(a) ((a)&MB_TYPE_16x8)
#define IS_8X16(a) ((a)&MB_TYPE_8x16)
#define IS_8X8(a) ((a)&MB_TYPE_8x8)
#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
#define IS_REF0(a) ((a)&MB_TYPE_REF0)
#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note doesnt work if subMBs
int field_poc[2]; ///< h264 top/bottom POC
int poc; ///< h264 frame POC
int frame_num; ///< h264 frame_num
int pic_id; ///< h264 pic_num or long_term_pic_idx
int long_ref; ///< 1->long term reference 0->short term reference
int mb_var_sum; ///< sum of MB variance for current frame
int mc_mb_var_sum; ///< motion compensated MB variance for current frame
uint16_t *mb_var; ///< Table for MB variances
@@ -267,6 +321,7 @@ typedef struct MpegEncContext {
Picture *current_picture_ptr; ///< pointer to the current picture
int last_dc[3]; ///< last DC values for MPEG1
int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
int16_t dc_cache[4*5];
int y_dc_scale, c_dc_scale;
uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
@@ -295,6 +350,7 @@ typedef struct MpegEncContext {
/* motion compensation */
int unrestricted_mv; ///< mv can point outside of the coded picture
int h263_long_vectors; ///< use horrible h263v1 long vector mode
int decode; ///< if 0 then decoding will be skiped (for encoding b frames for example)
DSPContext dsp; ///< pointers for accelerated dsp fucntions
int f_code; ///< forward MV resolution
@@ -470,9 +526,9 @@ typedef struct MpegEncContext {
int enhancement_type;
int new_pred;
int reduced_res_vop;
int aspect_ratio_info;
int aspected_width;
int aspected_height;
int aspect_ratio_info; //FIXME remove
int aspected_width; //FIXME remove
int aspected_height; //FIXME remove
int sprite_warping_accuracy;
int low_latency_sprite;
int data_partitioning; ///< data partitioning flag from header
@@ -546,6 +602,7 @@ typedef struct MpegEncContext {
int fake_picture_number; ///< picture number at the bitstream frame rate
int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
int last_mv_dir; ///< last mv_dir, used for b frame encoding
int broken_link; ///< no_output_of_prior_pics_flag
/* MPEG2 specific - I wish I had not to support this mess. */
int progressive_sequence;