s->codec_id != AV_CODEC_ID_MPEG4 &&
s->codec_id != AV_CODEC_ID_MPEG1VIDEO &&
s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
- av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
+ av_log(avctx, AV_LOG_ERROR, "B-frames not supported by codec\n");
return -1;
}
if (s->max_b_frames < 0) {
}
if (s->max_b_frames != 0) {
av_log(avctx, AV_LOG_ERROR,
- "b frames cannot be used with low delay\n");
+ "B-frames cannot be used with low delay\n");
return -1;
}
}
s->intra_matrix[j] =
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
} else {
- /* mpeg1/2 */
+ /* MPEG-1/2 */
s->chroma_intra_matrix[j] =
s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
return ret;
pic->f->display_picture_number = display_picture_number;
- pic->f->pts = pts; // we set this here to avoid modifiying pic_arg
+ pic->f->pts = pts; // we set this here to avoid modifying pic_arg
} else {
/* Flushing: When we have not received enough input frames,
* ensure s->input_picture[0] contains the first picture */
if (s->picture_in_gop_number < s->gop_size &&
s->next_picture_ptr &&
skip_check(s, s->input_picture[0], s->next_picture_ptr)) {
- // FIXME check that te gop check above is +-1 correct
+ // FIXME check that the gop check above is +-1 correct
av_frame_unref(s->input_picture[0]->f);
ff_vbv_update(s, 0);
if (s->input_picture[b_frames]->f->pict_type == AV_PICTURE_TYPE_B &&
b_frames == s->max_b_frames) {
av_log(s->avctx, AV_LOG_ERROR,
- "warning, too many b frames in a row\n");
+ "warning, too many B-frames in a row\n");
}
if (s->picture_in_gop_number + b_frames >= s->gop_size) {
return ret;
if (s->reordered_input_picture[0]->shared || s->avctx->rc_buffer_size) {
- // input is a shared pix, so we can't modifiy it -> alloc a new
+ // input is a shared pix, so we can't modify it -> allocate a new
// one & ensure that the shared one is reuseable
Picture *pic;
s->frame_bits = put_bits_count(&s->pb);
}
- /* update mpeg1/2 vbv_delay for CBR */
+ /* update MPEG-1/2 vbv_delay for CBR */
if (s->avctx->rc_max_rate &&
s->avctx->rc_min_rate == s->avctx->rc_max_rate &&
s->out_format == FMT_MPEG1 &&
memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster than a loop?
- /* mpeg1 */
+ /* MPEG-1 */
d->mb_skip_run= s->mb_skip_run;
for(i=0; i<3; i++)
d->last_dc[i] = s->last_dc[i];
memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster than a loop?
- /* mpeg1 */
+ /* MPEG-1 */
d->mb_skip_run= s->mb_skip_run;
for(i=0; i<3; i++)
d->last_dc[i] = s->last_dc[i];
static int encode_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= *(void**)arg;
- int mb_x, mb_y, pdif = 0;
+ int mb_x, mb_y;
int chr_h= 16>>s->chroma_y_shift;
int i, j;
MpegEncContext best_s = { 0 }, backup_s;
ff_mpv_decode_mb(s, s->block);
}
- /* clean the MV table in IPS frames for direct mode in B frames */
+ /* clean the MV table in IPS frames for direct mode in B-frames */
if(s->mb_intra /* && I,P,S_TYPE */){
s->p_mv_table[xy][0]=0;
s->p_mv_table[xy][1]=0;
/* Send the last GOB if RTP */
if (s->avctx->rtp_callback) {
int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
- pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
+ int pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
/* Call the RTP callback to send the last GOB */
emms_c();
s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
s->me.mb_var_sum_temp =
s->me.mc_mb_var_sum_temp = 0;
- /* we need to initialize some time vars before we can encode b-frames */
+ /* we need to initialize some time vars before we can encode B-frames */
// RAL: Condition added for MPEG1VIDEO
if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO || s->codec_id == AV_CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->msmpeg4_version))
set_frame_distances(s);
} else if(s->out_format == FMT_MJPEG) {
j = s->idsp.idct_permutation[scantable[i]];
unquant_coeff = alevel * matrix[j] * 8;
- }else{ //MPEG1
+ }else{ // MPEG-1
j = s->idsp.idct_permutation[scantable[i]]; // FIXME: optimize
if(s->mb_intra){
unquant_coeff = (int)( alevel * mpeg2_qscale * matrix[j]) >> 4;
score_tab[i+1]= best_score;
- //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
+ // Note: there is a vlc code in MPEG-4 which is 1 bit shorter then another one with a shorter run and the same level
if(last_non_zero <= 27){
for(; survivor_count; survivor_count--){
if(score_tab[ survivor[survivor_count-1] ] <= best_score)
last_score= 256*256*256*120;
for(i= survivor[0]; i<=last_non_zero + 1; i++){
int score= score_tab[i];
- if(i) score += lambda*2; //FIXME exacter?
+ if (i)
+ score += lambda * 2; // FIXME more exact?
if(score < last_score){
last_score= score;
if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
unquant_coeff= (alevel*qmul + qadd)>>3;
- }else{ //MPEG1
+ } else{ // MPEG-1
unquant_coeff = ((( alevel << 1) + 1) * mpeg2_qscale * ((int) matrix[0])) >> 5;
unquant_coeff = (unquant_coeff - 1) | 1;
}
#endif
dc += (1<<(RECON_SHIFT-1));
for(i=0; i<64; i++){
- rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
+ rem[i] = dc - (orig[i] << RECON_SHIFT); // FIXME use orig directly instead of copying to rem[]
}
#ifdef REFINE_STATS
STOP_TIMER("memset rem[]")}
}
/**
- * Permute an 8x8 block according to permuatation.
+ * Permute an 8x8 block according to permutation.
* @param block the block which will be permuted according to
* the given permutation vector
* @param permutation the permutation vector
projects / ffmpeg / blobdiff