23 #ifndef AVCODEC_MPEG4VIDEO_H
24 #define AVCODEC_MPEG4VIDEO_H
35 #define BIN_ONLY_SHAPE 2
38 #define SIMPLE_VO_TYPE 1
39 #define CORE_VO_TYPE 3
40 #define MAIN_VO_TYPE 4
41 #define NBIT_VO_TYPE 5
42 #define ARTS_VO_TYPE 10
43 #define ACE_VO_TYPE 12
44 #define SIMPLE_STUDIO_VO_TYPE 14
45 #define CORE_STUDIO_VO_TYPE 15
46 #define ADV_SIMPLE_VO_TYPE 17
48 #define VOT_VIDEO_ID 1
49 #define VOT_STILL_TEXTURE_ID 2
52 #define EXTENDED_PAR 15
55 #define STATIC_SPRITE 1
58 #define MOTION_MARKER 0x1F001
59 #define DC_MARKER 0x6B001
61 #define VOS_STARTCODE 0x1B0
62 #define USER_DATA_STARTCODE 0x1B2
63 #define GOP_STARTCODE 0x1B3
64 #define VISUAL_OBJ_STARTCODE 0x1B5
65 #define VOP_STARTCODE 0x1B6
66 #define SLICE_STARTCODE 0x1B7
67 #define EXT_STARTCODE 0x1B8
69 #define QUANT_MATRIX_EXT_ID 0x3
72 #define MAX_NVOP_SIZE 19
155 int16_t
block[6][64],
156 int motion_x,
int motion_y);
186 #define IS_3IV1 s->codec_tag == AV_RL32("3IV1")
199 int *dir_ptr,
int encoding)
206 scale =
s->y_dc_scale;
208 scale =
s->c_dc_scale;
212 wrap =
s->block_wrap[n];
213 dc_val =
s->dc_val[0] +
s->block_index[n];
219 b = dc_val[-1 -
wrap];
224 if (
s->first_slice_line && n != 3) {
227 if (n != 1 &&
s->mb_x ==
s->resync_mb_x)
230 if (
s->mb_x ==
s->resync_mb_x &&
s->mb_y ==
s->resync_mb_y + 1) {
231 if (n == 0 || n == 4 || n == 5)
252 if (
level & (~2047)) {
256 "dc<0 at %dx%d\n",
s->mb_x,
s->mb_y);
259 if (
level > 2048 + scale) {
261 "dc overflow at %dx%d\n",
s->mb_x,
s->mb_y);
#define AV_EF_BITSTREAM
detect bitstream specification deviations
#define AV_EF_AGGRESSIVE
consider things that a sane encoder should not do as an error
bitstream reader API header.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
const uint8_t ff_sprite_trajectory_lens[15]
const uint8_t ff_mpeg4_DCtab_lum[13][2]
void ff_mpeg4_stuffing(PutBitContext *pbc)
add MPEG-4 stuffing bits (01...1)
void ff_mpeg4_merge_partitions(MpegEncContext *s)
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s)
void ff_mpeg4_init_direct_mv(MpegEncContext *s)
void ff_mpeg4videodec_static_init(void)
const uint8_t ff_mpeg4_studio_intra[12][24][2]
RLTable ff_mpeg4_rl_intra
void ff_clean_mpeg4_qscales(MpegEncContext *s)
modify mb_type & qscale so that encoding is actually possible in MPEG-4
const uint8_t ff_mb_type_b_tab[4][2]
const int16_t ff_mpeg4_default_intra_matrix[64]
const uint8_t ff_mpeg4_c_dc_scale_table[32]
const uint16_t ff_mpeg4_resync_prefix[8]
int ff_mpeg4_decode_studio_slice_header(Mpeg4DecContext *ctx)
Decode the next video packet.
const uint8_t ff_mpeg4_y_dc_scale_table[32]
const uint8_t ff_mpeg4_DCtab_chrom[13][2]
const uint8_t ff_mpeg4_studio_dc_chroma[19][2]
const int16_t ff_mpeg4_default_non_intra_matrix[64]
void ff_mpeg4_clean_buffers(MpegEncContext *s)
static const uint8_t mpeg4_block_count[4]
uint8_t ff_mpeg4_static_rl_table_store[3][2][2 *MAX_RUN+MAX_LEVEL+3]
int ff_mpeg4_encode_picture_header(MpegEncContext *s, int picture_number)
int ff_mpeg4_workaround_bugs(AVCodecContext *avctx)
int ff_mpeg4_decode_partitions(Mpeg4DecContext *ctx)
Decode the first and second partition.
const uint16_t ff_mpeg4_intra_vlc[103][2]
int ff_mpeg4_frame_end(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
int ff_mpeg4_decode_picture_header(Mpeg4DecContext *ctx, GetBitContext *gb, int header)
Decode MPEG-4 headers.
void ff_mpeg4_encode_video_packet_header(MpegEncContext *s)
void ff_mpeg4_pred_ac(MpegEncContext *s, int16_t *block, int n, int dir)
Predict the ac.
const int8_t ff_mpeg4_intra_level[102]
static int ff_mpeg4_pred_dc(MpegEncContext *s, int n, int level, int *dir_ptr, int encoding)
Predict the dc.
int ff_mpeg4_decode_video_packet_header(Mpeg4DecContext *ctx)
Decode the next video packet.
void ff_mpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my)
const uint8_t ff_mpeg4_studio_dc_luma[19][2]
void ff_set_mpeg4_time(MpegEncContext *s)
const uint8_t ff_mpeg4_dc_threshold[8]
const int8_t ff_mpeg4_intra_run[102]
void ff_mpeg4_init_partitions(MpegEncContext *s)
static const uint8_t header[24]
static const float pred[4]
main external API structure.
int sprite_brightness_change
int intra_dc_threshold
QP above which the ac VLC should be used for intra dc.
int time_increment_bits
number of bits to represent the fractional part of time
int num_sprite_warping_points
int showed_packed_warning
flag for having shown the warning about invalid Divx B-frames
int sprite_shift[2]
sprite shift [isChroma]
int cplx_estimation_trash_i
int vol_control_parameters
does the stream contain the low_delay flag, used to work around buggy encoders.
uint16_t sprite_traj[4][2]
sprite trajectory points
int cplx_estimation_trash_p
int t_frame
time distance of first I -> B, used for interlaced B-frames
int cplx_estimation_trash_b
int resync_marker
could this stream contain resync markers