* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/attributes.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
#include "mpegvideo.h"
#include "h263.h"
#include "mpeg4video.h"
* Return the number of bits that encoding the 8x8 block in block would need.
* @param[in] block_last_index last index in scantable order that refers to a non zero element in block.
*/
-static inline int get_block_rate(MpegEncContext * s, DCTELEM block[64], int block_last_index, uint8_t scantable[64]){
+static inline int get_block_rate(MpegEncContext * s, int16_t block[64], int block_last_index, uint8_t scantable[64]){
int last=0;
int j;
int rate=0;
* @param[in,out] block MB coefficients, these will be restored
* @param[in] dir ac prediction direction for each 8x8 block
* @param[out] st scantable for each 8x8 block
- * @param[in] zigzag_last_index index refering to the last non zero coefficient in zigzag order
+ * @param[in] zigzag_last_index index referring to the last non zero coefficient in zigzag order
*/
-static inline void restore_ac_coeffs(MpegEncContext * s, DCTELEM block[6][64], const int dir[6], uint8_t *st[6], const int zigzag_last_index[6])
+static inline void restore_ac_coeffs(MpegEncContext * s, int16_t block[6][64], const int dir[6], uint8_t *st[6], const int zigzag_last_index[6])
{
int i, n;
memcpy(s->block_last_index, zigzag_last_index, sizeof(int)*6);
* @param[in,out] block MB coefficients, these will be updated if 1 is returned
* @param[in] dir ac prediction direction for each 8x8 block
* @param[out] st scantable for each 8x8 block
- * @param[out] zigzag_last_index index refering to the last non zero coefficient in zigzag order
+ * @param[out] zigzag_last_index index referring to the last non zero coefficient in zigzag order
*/
-static inline int decide_ac_pred(MpegEncContext * s, DCTELEM block[6][64], const int dir[6], uint8_t *st[6], int zigzag_last_index[6])
+static inline int decide_ac_pred(MpegEncContext * s, int16_t block[6][64], const int dir[6], uint8_t *st[6], int zigzag_last_index[6])
{
int score= 0;
int i, n;
- int8_t * const qscale_table = s->current_picture.f.qscale_table;
+ int8_t * const qscale_table = s->current_picture.qscale_table;
memcpy(zigzag_last_index, s->block_last_index, sizeof(int)*6);
*/
void ff_clean_mpeg4_qscales(MpegEncContext *s){
int i;
- int8_t * const qscale_table = s->current_picture.f.qscale_table;
+ int8_t * const qscale_table = s->current_picture.qscale_table;
ff_clean_h263_qscales(s);
/**
- * encodes the dc value.
+ * Encode the dc value.
* @param n block index (0-3 are luma, 4-5 are chroma)
*/
static inline void mpeg4_encode_dc(PutBitContext * s, int level, int n)
}
/**
- * encodes a 8x8 block
+ * Encode an 8x8 block.
* @param n block index (0-3 are luma, 4-5 are chroma)
*/
-static inline void mpeg4_encode_block(MpegEncContext * s, DCTELEM * block, int n, int intra_dc,
+static inline void mpeg4_encode_block(MpegEncContext * s, int16_t * block, int n, int intra_dc,
uint8_t *scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb)
{
int i, last_non_zero;
}
}
-static int mpeg4_get_block_length(MpegEncContext * s, DCTELEM * block, int n, int intra_dc,
+static int mpeg4_get_block_length(MpegEncContext * s, int16_t * block, int n, int intra_dc,
uint8_t *scan_table)
{
int i, last_non_zero;
return len;
}
-static inline void mpeg4_encode_blocks(MpegEncContext * s, DCTELEM block[6][64], int intra_dc[6],
+static inline void mpeg4_encode_blocks(MpegEncContext * s, int16_t block[6][64], int intra_dc[6],
uint8_t **scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb){
int i;
}
}
+static inline int get_b_cbp(MpegEncContext * s, int16_t block[6][64],
+ int motion_x, int motion_y, int mb_type)
+{
+ int cbp = 0, i;
+
+ if (s->mpv_flags & FF_MPV_FLAG_CBP_RD) {
+ int score = 0;
+ const int lambda = s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
+
+ for (i = 0; i < 6; i++)
+ if (s->coded_score[i] < 0) {
+ score += s->coded_score[i];
+ cbp |= 1 << (5 - i);
+ }
+
+ if (cbp) {
+ int zero_score = -6;
+ if ((motion_x | motion_y | s->dquant | mb_type) == 0)
+ zero_score -= 4; //2*MV + mb_type + cbp bit
+
+ zero_score *= lambda;
+ if (zero_score <= score)
+ cbp = 0;
+ }
+
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0 && ((cbp >> (5 - i)) & 1) == 0) {
+ s->block_last_index[i] = -1;
+ s->dsp.clear_block(s->block[i]);
+ }
+ }
+ } else {
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0)
+ cbp |= 1 << (5 - i);
+ }
+ }
+ return cbp;
+}
+
//FIXME this is duplicated to h263.c
static const int dquant_code[5]= {1,0,9,2,3};
-void mpeg4_encode_mb(MpegEncContext * s,
- DCTELEM block[6][64],
- int motion_x, int motion_y)
+void ff_mpeg4_encode_mb(MpegEncContext * s,
+ int16_t block[6][64],
+ int motion_x, int motion_y)
{
int cbpc, cbpy, pred_x, pred_y;
PutBitContext * const pb2 = s->data_partitioning ? &s->pb2 : &s->pb;
assert(mb_type>=0);
/* nothing to do if this MB was skipped in the next P Frame */
- if (s->next_picture.f.mbskip_table[s->mb_y * s->mb_stride + s->mb_x]) { //FIXME avoid DCT & ...
+ if (s->next_picture.mbskip_table[s->mb_y * s->mb_stride + s->mb_x]) { //FIXME avoid DCT & ...
s->skip_count++;
s->mv[0][0][0]=
s->mv[0][0][1]=
break;
b_pic = pic->f.data[0] + offset;
- if (pic->f.type != FF_BUFFER_TYPE_SHARED)
+ if (!pic->shared)
b_pic+= INPLACE_OFFSET;
diff= s->dsp.sad[0](NULL, p_pic, b_pic, s->linesize, 16);
if(diff>s->qscale*70){ //FIXME check that 70 is optimal
}
/* motion vectors: 16x16 mode */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
ff_h263_encode_motion_vector(s, motion_x - pred_x,
motion_y - pred_y, s->f_code);
}
/* motion vectors: 16x8 interlaced mode */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
pred_y /=2;
put_bits(&s->pb, 1, s->field_select[0][0]);
for(i=0; i<4; i++){
/* motion vectors: 8x8 mode*/
- h263_pred_motion(s, i, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);
- ff_h263_encode_motion_vector(s, s->current_picture.f.motion_val[0][ s->block_index[i] ][0] - pred_x,
- s->current_picture.f.motion_val[0][ s->block_index[i] ][1] - pred_y, s->f_code);
+ ff_h263_encode_motion_vector(s, s->current_picture.motion_val[0][ s->block_index[i] ][0] - pred_x,
+ s->current_picture.motion_val[0][ s->block_index[i] ][1] - pred_y, s->f_code);
}
}
if(!(s->flags & CODEC_FLAG_BITEXACT)){
put_bits(&s->pb, 16, 0);
put_bits(&s->pb, 16, 0x1B2); /* user_data */
- ff_put_string(&s->pb, LIBAVCODEC_IDENT, 0);
+ avpriv_put_string(&s->pb, LIBAVCODEC_IDENT, 0);
}
}
/* write mpeg4 VOP header */
-void mpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
+void ff_mpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
{
int time_incr;
int time_div, time_mod;
}
-static void init_uni_dc_tab(void)
+static av_cold void init_uni_dc_tab(void)
{
int level, uni_code, uni_len;
}
}
-static void init_uni_mpeg4_rl_tab(RLTable *rl, uint32_t *bits_tab, uint8_t *len_tab){
+static av_cold void init_uni_mpeg4_rl_tab(RLTable *rl, uint32_t *bits_tab,
+ uint8_t *len_tab)
+{
int slevel, run, last;
assert(MAX_LEVEL >= 64);
int ret;
static int done = 0;
- if((ret=MPV_encode_init(avctx)) < 0)
+ if((ret=ff_MPV_encode_init(avctx)) < 0)
return ret;
if (!done) {
init_uni_dc_tab();
- init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
+ ff_init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
init_uni_mpeg4_rl_tab(&ff_mpeg4_rl_intra, uni_mpeg4_intra_rl_bits, uni_mpeg4_intra_rl_len);
init_uni_mpeg4_rl_tab(&ff_h263_rl_inter, uni_mpeg4_inter_rl_bits, uni_mpeg4_inter_rl_len);
s->inter_ac_vlc_length = uni_mpeg4_inter_rl_len;
s->inter_ac_vlc_last_length= uni_mpeg4_inter_rl_len + 128*64;
s->luma_dc_vlc_length= uni_DCtab_lum_len;
- s->chroma_dc_vlc_length= uni_DCtab_chrom_len;
s->ac_esc_length= 7+2+1+6+1+12+1;
s->y_dc_scale_table= ff_mpeg4_y_dc_scale_table;
s->c_dc_scale_table= ff_mpeg4_c_dc_scale_table;
flush_put_bits(&s->tex_pb);
set_put_bits_buffer_size(&s->pb, s->pb2.buf_end - s->pb.buf);
- ff_copy_bits(&s->pb, s->pb2.buf , pb2_len);
- ff_copy_bits(&s->pb, s->tex_pb.buf, tex_pb_len);
+ avpriv_copy_bits(&s->pb, s->pb2.buf , pb2_len);
+ avpriv_copy_bits(&s->pb, s->tex_pb.buf, tex_pb_len);
s->last_bits= put_bits_count(&s->pb);
}
put_bits(&s->pb, 1, 0); /* no HEC */
}
+#define OFFSET(x) offsetof(MpegEncContext, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "data_partitioning", "Use data partitioning.", OFFSET(data_partitioning), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "alternate_scan", "Enable alternate scantable.", OFFSET(alternate_scan), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ FF_MPV_COMMON_OPTS
+ { NULL },
+};
+
+static const AVClass mpeg4enc_class = {
+ .class_name = "MPEG4 encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVCodec ff_mpeg4_encoder = {
- "mpeg4",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_MPEG4,
- sizeof(MpegEncContext),
- encode_init,
- MPV_encode_picture,
- MPV_encode_end,
- .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
- .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
+ .name = "mpeg4",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG4,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = encode_init,
+ .encode2 = ff_MPV_encode_picture,
+ .close = ff_MPV_encode_end,
+ .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
+ .capabilities = CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
+ .priv_class = &mpeg4enc_class,
};
projects / ffmpeg / blobdiff