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https://github.com/FFmpeg/FFmpeg.git
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avcodec/mpegpicture: Move mb_var, mc_mb_var and mb_mean to MpegEncCtx
These tables are only used by encoders and only for the current picture; ergo they need not be put into the picture at all, but rather into the encoder's context. They also don't need to be refcounted, because there is only one owner. In contrast to this, the earlier code refcounts them which incurs unnecessary overhead. These references are not unreferenced in ff_mpeg_unref_picture() (they are kept in order to have something like a buffer pool), so that several buffers are kept at the same time, although only one is needed, thereby wasting memory. The code also propagates references to other pictures not part of the pictures array (namely the copy of the current/next/last picture in the MpegEncContext which get references of their own). These references are not unreferenced in ff_mpeg_unref_picture() (the buffers are probably kept in order to have something like a pool), yet if the current picture is a B-frame, it gets unreferenced at the end of ff_mpv_encode_picture() and its slot in the picture array will therefore be reused the next time; but the copy of the current picture also still has its references and therefore these buffers will be made duplicated in order to make them writable in the next call to ff_mpv_encode_picture(). This is of course unnecessary. Finally, ff_find_unused_picture() is supposed to just return any unused picture and the code is supposed to work with it; yet for the vsynth*-mpeg4-adap tests the result depends upon the content of these buffers; given that this patchset changes the content of these buffers (the initial content is now the state of these buffers after encoding the last frame; before this patch the buffers used came from the last picture that occupied the same slot in the picture array) their ref-files needed to be changed. This points to a bug somewhere (if one removes the initialization, one gets uninitialized reads in adaptive_quantization in ratecontrol.c). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
parent
109515e16d
commit
bc109a53c7
@ -895,7 +895,6 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
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int P[10][2];
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const int shift= 1+s->quarter_sample;
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int mb_type=0;
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Picture * const pic= &s->current_picture;
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init_ref(c, s->new_picture->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);
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@ -917,8 +916,8 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
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varc = s->mpvencdsp.pix_norm1(pix, s->linesize) -
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(((unsigned) sum * sum) >> 8) + 500;
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pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
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pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
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s->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
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s->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
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c->mb_var_sum_temp += (varc+128)>>8;
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if (s->motion_est != FF_ME_ZERO) {
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@ -965,7 +964,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
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vard = s->mecc.sse[0](NULL, pix, ppix, s->linesize, 16);
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pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
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s->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
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c->mc_mb_var_sum_temp += (vard+128)>>8;
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if (c->avctx->mb_decision > FF_MB_DECISION_SIMPLE) {
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@ -1509,7 +1508,7 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
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score= ((unsigned)(score*score + 128*256))>>16;
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c->mc_mb_var_sum_temp += score;
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s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
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s->mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
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s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
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return;
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@ -1574,7 +1573,7 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
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score= ((unsigned)(score*score + 128*256))>>16;
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c->mc_mb_var_sum_temp += score;
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s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
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s->mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
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}
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if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
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@ -1629,7 +1628,8 @@ int ff_get_best_fcode(MpegEncContext * s, const int16_t (*mv_table)[2], int type
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continue;
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for(j=0; j<fcode && j<8; j++){
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if(s->pict_type==AV_PICTURE_TYPE_B || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
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if (s->pict_type == AV_PICTURE_TYPE_B ||
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s->mc_mb_var[xy] < s->mb_var[xy])
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score[j]-= 170;
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}
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}
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@ -37,9 +37,6 @@ static void av_noinline free_picture_tables(Picture *pic)
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pic->alloc_mb_width =
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pic->alloc_mb_height = 0;
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av_buffer_unref(&pic->mb_var_buf);
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av_buffer_unref(&pic->mc_mb_var_buf);
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av_buffer_unref(&pic->mb_mean_buf);
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av_buffer_unref(&pic->mbskip_table_buf);
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av_buffer_unref(&pic->qscale_table_buf);
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av_buffer_unref(&pic->mb_type_buf);
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@ -60,9 +57,6 @@ do {\
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return ret;\
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} while (0)
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MAKE_WRITABLE(mb_var_buf);
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MAKE_WRITABLE(mc_mb_var_buf);
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MAKE_WRITABLE(mb_mean_buf);
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MAKE_WRITABLE(mbskip_table_buf);
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MAKE_WRITABLE(qscale_table_buf);
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MAKE_WRITABLE(mb_type_buf);
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@ -218,14 +212,6 @@ static int alloc_picture_tables(AVCodecContext *avctx, Picture *pic, int encodin
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if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
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return AVERROR(ENOMEM);
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if (encoding) {
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pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
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pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
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pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
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if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
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return AVERROR(ENOMEM);
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}
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if (out_format == FMT_H263 || encoding ||
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(avctx->export_side_data & AV_CODEC_EXPORT_DATA_MVS)) {
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int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
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@ -285,12 +271,6 @@ int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me,
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if (ret < 0)
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goto fail;
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if (encoding) {
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pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
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pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
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pic->mb_mean = pic->mb_mean_buf->data;
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}
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pic->mbskip_table = pic->mbskip_table_buf->data;
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pic->qscale_table = pic->qscale_table_buf->data + 2 * mb_stride + 1;
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pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * mb_stride + 1;
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@ -316,7 +296,7 @@ fail:
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*/
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void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *pic)
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{
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int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
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int off = offsetof(Picture, hwaccel_priv_buf) + sizeof(pic->hwaccel_priv_buf);
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pic->tf.f = pic->f;
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/* WM Image / Screen codecs allocate internal buffers with different
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@ -340,10 +320,7 @@ int ff_update_picture_tables(Picture *dst, const Picture *src)
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{
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int i, ret;
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ret = av_buffer_replace(&dst->mb_var_buf, src->mb_var_buf);
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ret |= av_buffer_replace(&dst->mc_mb_var_buf, src->mc_mb_var_buf);
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ret |= av_buffer_replace(&dst->mb_mean_buf, src->mb_mean_buf);
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ret |= av_buffer_replace(&dst->mbskip_table_buf, src->mbskip_table_buf);
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ret = av_buffer_replace(&dst->mbskip_table_buf, src->mbskip_table_buf);
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ret |= av_buffer_replace(&dst->qscale_table_buf, src->qscale_table_buf);
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ret |= av_buffer_replace(&dst->mb_type_buf, src->mb_type_buf);
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for (i = 0; i < 2; i++) {
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@ -356,9 +333,6 @@ int ff_update_picture_tables(Picture *dst, const Picture *src)
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return ret;
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}
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dst->mb_var = src->mb_var;
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dst->mc_mb_var = src->mc_mb_var;
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dst->mb_mean = src->mb_mean;
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dst->mbskip_table = src->mbskip_table;
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dst->qscale_table = src->qscale_table;
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dst->mb_type = src->mb_type;
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@ -62,19 +62,10 @@ typedef struct Picture {
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AVBufferRef *ref_index_buf[2];
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int8_t *ref_index[2];
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AVBufferRef *mb_var_buf;
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uint16_t *mb_var; ///< Table for MB variances
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AVBufferRef *mc_mb_var_buf;
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uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
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int alloc_mb_width; ///< mb_width used to allocate tables
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int alloc_mb_height; ///< mb_height used to allocate tables
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int alloc_mb_stride; ///< mb_stride used to allocate tables
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AVBufferRef *mb_mean_buf;
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uint8_t *mb_mean; ///< Table for MB luminance
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AVBufferRef *hwaccel_priv_buf;
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void *hwaccel_picture_private; ///< Hardware accelerator private data
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@ -235,6 +235,12 @@ typedef struct MpegEncContext {
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int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame encoding
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uint8_t (*p_field_select_table[2]); ///< Only the first element is allocated
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uint8_t (*b_field_select_table[2][2]); ///< Only the first element is allocated
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/* The following three arrays are encoder-only */
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uint16_t *mb_var; ///< Table for MB variances
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uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
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uint8_t *mb_mean; ///< Table for MB luminance
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int motion_est; ///< ME algorithm
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int me_penalty_compensation;
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int me_pre; ///< prepass for motion estimation
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@ -313,6 +313,7 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
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MpegEncContext *s = avctx->priv_data;
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AVCPBProperties *cpb_props;
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int i, ret;
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int mb_array_size;
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mpv_encode_defaults(s);
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@ -823,6 +824,12 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
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!FF_ALLOCZ_TYPED_ARRAY(s->reordered_input_picture, MAX_PICTURE_COUNT))
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return AVERROR(ENOMEM);
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mb_array_size = s->mb_stride * s->mb_height;
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if (!FF_ALLOCZ_TYPED_ARRAY(s->mc_mb_var, mb_array_size) ||
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!FF_ALLOCZ_TYPED_ARRAY(s->mb_var, mb_array_size) ||
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!(s->mb_mean = av_mallocz(mb_array_size)))
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return AVERROR(ENOMEM);
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if (s->noise_reduction) {
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if (!FF_ALLOCZ_TYPED_ARRAY(s->dct_offset, 2))
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return AVERROR(ENOMEM);
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@ -949,6 +956,9 @@ av_cold int ff_mpv_encode_end(AVCodecContext *avctx)
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av_freep(&s->input_picture);
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av_freep(&s->reordered_input_picture);
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av_freep(&s->dct_offset);
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av_freep(&s->mb_var);
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av_freep(&s->mc_mb_var);
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av_freep(&s->mb_mean);
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return 0;
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}
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@ -2235,8 +2245,7 @@ static av_always_inline void encode_mb_internal(MpegEncContext *s,
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}
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}
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/* pre quantization */
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if (s->current_picture.mc_mb_var[s->mb_stride * mb_y + mb_x] <
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2 * s->qscale * s->qscale) {
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if (s->mc_mb_var[s->mb_stride * mb_y + mb_x] < 2 * s->qscale * s->qscale) {
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// FIXME optimize
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if (s->mecc.sad[1](NULL, ptr_y, dest_y, wrap_y, 8) < 20 * s->qscale)
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skip_dct[0] = 1;
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@ -2648,8 +2657,8 @@ static int mb_var_thread(AVCodecContext *c, void *arg){
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varc = (s->mpvencdsp.pix_norm1(pix, s->linesize) -
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(((unsigned) sum * sum) >> 8) + 500 + 128) >> 8;
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s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
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s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
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s->mb_var [s->mb_stride * mb_y + mb_x] = varc;
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s->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
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s->me.mb_var_sum_temp += varc;
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}
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}
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@ -751,15 +751,14 @@ static void adaptive_quantization(MpegEncContext *s, double q)
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float *bits_tab = s->bits_tab;
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const int qmin = s->avctx->mb_lmin;
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const int qmax = s->avctx->mb_lmax;
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Picture *const pic = &s->current_picture;
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const int mb_width = s->mb_width;
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const int mb_height = s->mb_height;
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for (i = 0; i < s->mb_num; i++) {
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const int mb_xy = s->mb_index2xy[i];
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float temp_cplx = sqrt(pic->mc_mb_var[mb_xy]); // FIXME merge in pow()
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float spat_cplx = sqrt(pic->mb_var[mb_xy]);
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const int lumi = pic->mb_mean[mb_xy];
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float temp_cplx = sqrt(s->mc_mb_var[mb_xy]); // FIXME merge in pow()
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float spat_cplx = sqrt(s->mb_var[mb_xy]);
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const int lumi = s->mb_mean[mb_xy];
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float bits, cplx, factor;
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int mb_x = mb_xy % s->mb_stride;
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int mb_y = mb_xy / s->mb_stride;
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@ -313,9 +313,9 @@ static int svq1_encode_plane(SVQ1EncContext *s, int plane,
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s->m.mb_type = s->mb_type;
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// dummies, to avoid segfaults
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s->m.current_picture.mb_mean = (uint8_t *)s->dummy;
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s->m.current_picture.mb_var = (uint16_t *)s->dummy;
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s->m.current_picture.mc_mb_var = (uint16_t *)s->dummy;
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s->m.mb_mean = (uint8_t *)s->dummy;
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s->m.mb_var = (uint16_t *)s->dummy;
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s->m.mc_mb_var = (uint16_t *)s->dummy;
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s->m.current_picture.mb_type = s->dummy;
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s->m.current_picture.motion_val[0] = s->motion_val8[plane] + 2;
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@ -2,45 +2,45 @@ ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 5652 size: 6855
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ret: 0 st:-1 flags:0 ts:-1.000000
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ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 5652 size: 6855
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ret: 0 st:-1 flags:1 ts: 1.894167
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 174446 size: 16883
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 161318 size: 19176
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ret: 0 st: 0 flags:0 ts: 0.800000
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ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 98220 size: 17063
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ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 75056 size: 19178
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ret:-1 st: 0 flags:1 ts:-0.320000
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ret:-1 st:-1 flags:0 ts: 2.576668
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ret: 0 st:-1 flags:1 ts: 1.470835
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ret: 0 st: 0 flags:1 dts: 1.360000 pts: NOPTS pos: 135582 size: 17525
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ret: 0 st: 0 flags:1 dts: 1.360000 pts: NOPTS pos: 118696 size: 20018
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ret: 0 st: 0 flags:0 ts: 0.360000
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ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 59446 size: 17261
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ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 35800 size: 17261
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ret:-1 st: 0 flags:1 ts:-0.760000
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ret:-1 st:-1 flags:0 ts: 2.153336
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ret: 0 st:-1 flags:1 ts: 1.047503
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ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 98220 size: 17063
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ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 75056 size: 19178
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ret: 0 st: 0 flags:0 ts:-0.040000
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ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 5652 size: 6855
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ret: 0 st: 0 flags:1 ts: 2.840000
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 174446 size: 16883
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 161318 size: 19176
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ret: 0 st:-1 flags:0 ts: 1.730004
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 174446 size: 16883
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 161318 size: 19176
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ret: 0 st:-1 flags:1 ts: 0.624171
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ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 59446 size: 17261
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ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 35800 size: 17261
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ret: 0 st: 0 flags:0 ts:-0.480000
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ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 5652 size: 6855
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ret: 0 st: 0 flags:1 ts: 2.400000
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 174446 size: 16883
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 161318 size: 19176
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ret: 0 st:-1 flags:0 ts: 1.306672
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ret: 0 st: 0 flags:1 dts: 1.360000 pts: NOPTS pos: 135582 size: 17525
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ret: 0 st: 0 flags:1 dts: 1.360000 pts: NOPTS pos: 118696 size: 20018
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ret: 0 st:-1 flags:1 ts: 0.200839
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ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 5652 size: 6855
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ret: 0 st: 0 flags:0 ts:-0.920000
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ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 5652 size: 6855
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ret: 0 st: 0 flags:1 ts: 2.000000
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 174446 size: 16883
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ret: 0 st: 0 flags:1 dts: 1.840000 pts: NOPTS pos: 161318 size: 19176
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ret: 0 st:-1 flags:0 ts: 0.883340
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ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 98220 size: 17063
|
||||
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 75056 size: 19178
|
||||
ret:-1 st:-1 flags:1 ts:-0.222493
|
||||
ret:-1 st: 0 flags:0 ts: 2.680000
|
||||
ret: 0 st: 0 flags:1 ts: 1.560000
|
||||
ret: 0 st: 0 flags:1 dts: 1.360000 pts: NOPTS pos: 135582 size: 17525
|
||||
ret: 0 st: 0 flags:1 dts: 1.360000 pts: NOPTS pos: 118696 size: 20018
|
||||
ret: 0 st:-1 flags:0 ts: 0.460008
|
||||
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 98220 size: 17063
|
||||
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 75056 size: 19178
|
||||
ret:-1 st:-1 flags:1 ts:-0.645825
|
||||
|
@ -1,4 +1,4 @@
|
||||
f120f0bf976bb510c5b5305fe7d8159a *tests/data/fate/vsynth1-mpeg4-adap.avi
|
||||
403436 tests/data/fate/vsynth1-mpeg4-adap.avi
|
||||
fad0b9dc08fe4a95b297af1a7411c1e9 *tests/data/fate/vsynth1-mpeg4-adap.out.rawvideo
|
||||
stddev: 14.05 PSNR: 25.17 MAXDIFF: 184 bytes: 7603200/ 7603200
|
||||
0f1cbbdc3f9b91f2d9ac3d1fc2cf7d4e *tests/data/fate/vsynth1-mpeg4-adap.avi
|
||||
325518 tests/data/fate/vsynth1-mpeg4-adap.avi
|
||||
1e6c596f9f491fbf15920ef1bace7fb8 *tests/data/fate/vsynth1-mpeg4-adap.out.rawvideo
|
||||
stddev: 14.12 PSNR: 25.13 MAXDIFF: 184 bytes: 7603200/ 7603200
|
||||
|
@ -1,4 +1,4 @@
|
||||
4bff98da2342836476da817428594403 *tests/data/fate/vsynth2-mpeg4-adap.avi
|
||||
213508 tests/data/fate/vsynth2-mpeg4-adap.avi
|
||||
0c709f2b81f4593eaa29490332c2cb39 *tests/data/fate/vsynth2-mpeg4-adap.out.rawvideo
|
||||
stddev: 4.87 PSNR: 34.36 MAXDIFF: 86 bytes: 7603200/ 7603200
|
||||
06a397fe43dab7b6cf56870410fbbbaf *tests/data/fate/vsynth2-mpeg4-adap.avi
|
||||
203000 tests/data/fate/vsynth2-mpeg4-adap.avi
|
||||
686565d42d8ba5aea790824b04fa0a18 *tests/data/fate/vsynth2-mpeg4-adap.out.rawvideo
|
||||
stddev: 4.55 PSNR: 34.95 MAXDIFF: 84 bytes: 7603200/ 7603200
|
||||
|
@ -1,4 +1,4 @@
|
||||
c16e5c2436ca9953517eadba562768e9 *tests/data/fate/vsynth3-mpeg4-adap.avi
|
||||
43706 tests/data/fate/vsynth3-mpeg4-adap.avi
|
||||
b42b614e19e7c4859fca1af6d4e36eae *tests/data/fate/vsynth3-mpeg4-adap.out.rawvideo
|
||||
stddev: 5.48 PSNR: 33.34 MAXDIFF: 53 bytes: 86700/ 86700
|
||||
6b2f641f2e68b11b992fd6ba1ed66a21 *tests/data/fate/vsynth3-mpeg4-adap.avi
|
||||
41012 tests/data/fate/vsynth3-mpeg4-adap.avi
|
||||
3483a2032cb02c3a37f5e43b128e59ed *tests/data/fate/vsynth3-mpeg4-adap.out.rawvideo
|
||||
stddev: 5.79 PSNR: 32.87 MAXDIFF: 49 bytes: 86700/ 86700
|
||||
|
@ -1,4 +1,4 @@
|
||||
c6108621b1202d32dac68b1944c5b8c2 *tests/data/fate/vsynth_lena-mpeg4-adap.avi
|
||||
198500 tests/data/fate/vsynth_lena-mpeg4-adap.avi
|
||||
87b6dbe98d276137fceaae2fa672eced *tests/data/fate/vsynth_lena-mpeg4-adap.out.rawvideo
|
||||
stddev: 3.75 PSNR: 36.65 MAXDIFF: 71 bytes: 7603200/ 7603200
|
||||
633da125f46391eef33bb031cd728f4b *tests/data/fate/vsynth_lena-mpeg4-adap.avi
|
||||
187598 tests/data/fate/vsynth_lena-mpeg4-adap.avi
|
||||
21312bfcb28c40299fb27a5b03477f8c *tests/data/fate/vsynth_lena-mpeg4-adap.out.rawvideo
|
||||
stddev: 3.63 PSNR: 36.92 MAXDIFF: 71 bytes: 7603200/ 7603200
|
||||
|
Loading…
Reference in New Issue
Block a user