File ffmpeg-CVE-2018-13301.patch of Package ffmpeg.21292
diff -Nura ffmpeg-3.4.2/fftools/ffmpeg.c ffmpeg-3.4.2_new/fftools/ffmpeg.c
--- ffmpeg-3.4.2/fftools/ffmpeg.c 2019-07-06 16:42:23.008212683 +0800
+++ ffmpeg-3.4.2_new/fftools/ffmpeg.c 2019-07-08 00:26:34.653219658 +0800
@@ -2910,7 +2910,7 @@
/* Useful for subtitles retiming by lavf (FIXME), skipping samples in
* audio, and video decoders such as cuvid or mediacodec */
- av_codec_set_pkt_timebase(ist->dec_ctx, ist->st->time_base);
+ ist->dec_ctx->pkt_timebase = ist->st->time_base;
if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
diff -Nura ffmpeg-3.4.2/fftools/ffmpeg_opt.c ffmpeg-3.4.2_new/fftools/ffmpeg_opt.c
--- ffmpeg-3.4.2/fftools/ffmpeg_opt.c 2019-07-06 16:42:23.009212693 +0800
+++ ffmpeg-3.4.2_new/fftools/ffmpeg_opt.c 2019-07-08 00:26:43.109297918 +0800
@@ -792,8 +792,8 @@
if(!ist->dec)
ist->dec = avcodec_find_decoder(par->codec_id);
#if FF_API_LOWRES
- if (av_codec_get_lowres(st->codec)) {
- av_codec_set_lowres(ist->dec_ctx, av_codec_get_lowres(st->codec));
+ if (st->codec->lowres) {
+ ist->dec_ctx->lowres = st->codec->lowres;
ist->dec_ctx->width = st->codec->width;
ist->dec_ctx->height = st->codec->height;
ist->dec_ctx->coded_width = st->codec->coded_width;
@@ -1663,7 +1663,7 @@
av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
exit_program(1);
}
- av_codec_set_chroma_intra_matrix(video_enc, p);
+ video_enc->chroma_intra_matrix = p;
parse_matrix_coeffs(p, chroma_intra_matrix);
}
MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
diff -Nura ffmpeg-3.4.2/libavcodec/bit_depth_template.c ffmpeg-3.4.2_new/libavcodec/bit_depth_template.c
--- ffmpeg-3.4.2/libavcodec/bit_depth_template.c 2016-03-29 10:25:11.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/bit_depth_template.c 2019-07-08 00:27:16.981611423 +0800
@@ -29,6 +29,7 @@
# undef pixel2
# undef pixel4
# undef dctcoef
+# undef idctin
# undef INIT_CLIP
# undef no_rnd_avg_pixel4
# undef rnd_avg_pixel4
@@ -53,6 +54,16 @@
# define pixel4 uint64_t
# define dctcoef int32_t
+#ifdef IN_IDCT_DEPTH
+#if IN_IDCT_DEPTH == 32
+# define idctin int32_t
+#else
+# define idctin int16_t
+#endif
+#else
+# define idctin int16_t
+#endif
+
# define INIT_CLIP
# define no_rnd_avg_pixel4 no_rnd_avg64
# define rnd_avg_pixel4 rnd_avg64
@@ -71,6 +82,7 @@
# define pixel2 uint16_t
# define pixel4 uint32_t
# define dctcoef int16_t
+# define idctin int16_t
# define INIT_CLIP
# define no_rnd_avg_pixel4 no_rnd_avg32
@@ -87,7 +99,10 @@
# define CLIP(a) av_clip_uint8(a)
#endif
-#define FUNC3(a, b, c) a ## _ ## b ## c
+#define FUNC3(a, b, c) a ## _ ## b ## c
#define FUNC2(a, b, c) FUNC3(a, b, c)
#define FUNC(a) FUNC2(a, BIT_DEPTH,)
#define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)
+#define FUNC4(a, b, c) a ## _int ## b ## _ ## c ## bit
+#define FUNC5(a, b, c) FUNC4(a, b, c)
+#define FUNC6(a) FUNC5(a, IN_IDCT_DEPTH, BIT_DEPTH)
diff -Nura ffmpeg-3.4.2/libavcodec/error_resilience.c ffmpeg-3.4.2_new/libavcodec/error_resilience.c
--- ffmpeg-3.4.2/libavcodec/error_resilience.c 2018-02-12 08:29:04.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/error_resilience.c 2019-07-08 00:27:34.805776383 +0800
@@ -818,7 +818,8 @@
s->avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU ||
#endif
!s->cur_pic.f ||
- s->cur_pic.field_picture
+ s->cur_pic.field_picture ||
+ s->avctx->profile == FF_PROFILE_MPEG4_SIMPLE_STUDIO
)
return 0;
return 1;
diff -Nura ffmpeg-3.4.2/libavcodec/h263dec.c ffmpeg-3.4.2_new/libavcodec/h263dec.c
--- ffmpeg-3.4.2/libavcodec/h263dec.c 2018-02-12 08:29:04.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/h263dec.c 2019-07-08 00:27:48.781905730 +0800
@@ -47,6 +47,12 @@
static enum AVPixelFormat h263_get_format(AVCodecContext *avctx)
{
+ /* MPEG-4 Studio Profile only, not supported by hardware */
+ if (avctx->bits_per_raw_sample > 8) {
+ av_assert1(avctx->profile == FF_PROFILE_MPEG4_SIMPLE_STUDIO);
+ return avctx->pix_fmt;
+ }
+
if (avctx->codec->id == AV_CODEC_ID_MSS2)
return AV_PIX_FMT_YUV420P;
@@ -197,6 +203,11 @@
ff_set_qscale(s, s->qscale);
+ if (s->studio_profile) {
+ if ((ret = ff_mpeg4_decode_studio_slice_header(s->avctx->priv_data)) < 0)
+ return ret;
+ }
+
if (s->avctx->hwaccel) {
const uint8_t *start = s->gb.buffer + get_bits_count(&s->gb) / 8;
ret = s->avctx->hwaccel->decode_slice(s->avctx, start, s->gb.buffer_end - start);
diff -Nura ffmpeg-3.4.2/libavcodec/idctdsp.c ffmpeg-3.4.2_new/libavcodec/idctdsp.c
--- ffmpeg-3.4.2/libavcodec/idctdsp.c 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/idctdsp.c 2019-07-08 00:28:00.854017456 +0800
@@ -256,14 +256,20 @@
c->perm_type = FF_IDCT_PERM_NONE;
} else {
if (avctx->bits_per_raw_sample == 10 || avctx->bits_per_raw_sample == 9) {
- c->idct_put = ff_simple_idct_put_10;
- c->idct_add = ff_simple_idct_add_10;
- c->idct = ff_simple_idct_10;
+ /* 10-bit MPEG-4 Simple Studio Profile requires a higher precision IDCT
+ However, it only uses idct_put */
+ if (avctx->codec_id == AV_CODEC_ID_MPEG4 && avctx->profile == FF_PROFILE_MPEG4_SIMPLE_STUDIO)
+ c->idct_put = ff_simple_idct_put_int32_10bit;
+ else {
+ c->idct_put = ff_simple_idct_put_int16_10bit;
+ c->idct_add = ff_simple_idct_add_int16_10bit;
+ c->idct = ff_simple_idct_int16_10bit;
+ }
c->perm_type = FF_IDCT_PERM_NONE;
} else if (avctx->bits_per_raw_sample == 12) {
- c->idct_put = ff_simple_idct_put_12;
- c->idct_add = ff_simple_idct_add_12;
- c->idct = ff_simple_idct_12;
+ c->idct_put = ff_simple_idct_put_int16_12bit;
+ c->idct_add = ff_simple_idct_add_int16_12bit;
+ c->idct = ff_simple_idct_int16_12bit;
c->perm_type = FF_IDCT_PERM_NONE;
} else {
if (avctx->idct_algo == FF_IDCT_INT) {
@@ -280,9 +286,9 @@
#endif /* CONFIG_FAANIDCT */
} else { // accurate/default
/* Be sure FF_IDCT_NONE will select this one, since it uses FF_IDCT_PERM_NONE */
- c->idct_put = ff_simple_idct_put_8;
- c->idct_add = ff_simple_idct_add_8;
- c->idct = ff_simple_idct_8;
+ c->idct_put = ff_simple_idct_put_int16_8bit;
+ c->idct_add = ff_simple_idct_add_int16_8bit;
+ c->idct = ff_simple_idct_int16_8bit;
c->perm_type = FF_IDCT_PERM_NONE;
}
}
diff -Nura ffmpeg-3.4.2/libavcodec/ituh263dec.c ffmpeg-3.4.2_new/libavcodec/ituh263dec.c
--- ffmpeg-3.4.2/libavcodec/ituh263dec.c 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/ituh263dec.c 2019-07-08 00:28:14.238141324 +0800
@@ -207,12 +207,27 @@
}
/**
- * Decode the group of blocks / video packet header.
+ * Decode the group of blocks / video packet header / slice header (MPEG-4 Studio).
* @return bit position of the resync_marker, or <0 if none was found
*/
int ff_h263_resync(MpegEncContext *s){
int left, pos, ret;
+ /* In MPEG-4 studio mode look for a new slice startcode
+ * and decode slice header */
+ if(s->codec_id==AV_CODEC_ID_MPEG4 && s->studio_profile) {
+ align_get_bits(&s->gb);
+
+ while (get_bits_left(&s->gb) >= 32 && show_bits_long(&s->gb, 32) != SLICE_START_CODE) {
+ get_bits(&s->gb, 8);
+ }
+
+ if (show_bits_long(&s->gb, 32) == SLICE_START_CODE)
+ return get_bits_count(&s->gb);
+ else
+ return -1;
+ }
+
if(s->codec_id==AV_CODEC_ID_MPEG4){
skip_bits1(&s->gb);
align_get_bits(&s->gb);
diff -Nura ffmpeg-3.4.2/libavcodec/me_cmp.c ffmpeg-3.4.2_new/libavcodec/me_cmp.c
--- ffmpeg-3.4.2/libavcodec/me_cmp.c 2018-01-01 06:35:47.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/me_cmp.c 2019-07-08 00:28:27.022259639 +0800
@@ -721,7 +721,7 @@
s->block_last_index[0 /* FIXME */] =
s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
s->dct_unquantize_inter(s, temp, 0, s->qscale);
- ff_simple_idct_8(temp); // FIXME
+ ff_simple_idct_int16_8bit(temp); // FIXME
for (i = 0; i < 64; i++)
sum += (temp[i] - bak[i]) * (temp[i] - bak[i]);
diff -Nura ffmpeg-3.4.2/libavcodec/mpeg12dec.c ffmpeg-3.4.2_new/libavcodec/mpeg12dec.c
--- ffmpeg-3.4.2/libavcodec/mpeg12dec.c 2018-02-12 08:29:18.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/mpeg12dec.c 2019-07-08 00:28:39.095371373 +0800
@@ -649,16 +649,6 @@
return 0;
}
-static inline int get_qscale(MpegEncContext *s)
-{
- int qscale = get_bits(&s->gb, 5);
- if (s->q_scale_type)
- return ff_mpeg2_non_linear_qscale[qscale];
- else
- return qscale << 1;
-}
-
-
/* motion type (for MPEG-2) */
#define MT_FIELD 1
#define MT_FRAME 2
@@ -751,7 +741,7 @@
s->interlaced_dct = get_bits1(&s->gb);
if (IS_QUANT(mb_type))
- s->qscale = get_qscale(s);
+ s->qscale = mpeg_get_qscale(s);
if (s->concealment_motion_vectors) {
/* just parse them */
@@ -819,7 +809,7 @@
}
if (IS_QUANT(mb_type))
- s->qscale = get_qscale(s);
+ s->qscale = mpeg_get_qscale(s);
s->last_mv[0][0][0] = 0;
s->last_mv[0][0][1] = 0;
@@ -840,7 +830,7 @@
}
if (IS_QUANT(mb_type))
- s->qscale = get_qscale(s);
+ s->qscale = mpeg_get_qscale(s);
/* motion vectors */
s->mv_dir = (mb_type >> 13) & 3;
@@ -1743,7 +1733,7 @@
ff_mpeg1_clean_buffers(s);
s->interlaced_dct = 0;
- s->qscale = get_qscale(s);
+ s->qscale = mpeg_get_qscale(s);
if (s->qscale == 0) {
av_log(s->avctx, AV_LOG_ERROR, "qscale == 0\n");
diff -Nura ffmpeg-3.4.2/libavcodec/mpeg4data.h ffmpeg-3.4.2_new/libavcodec/mpeg4data.h
--- ffmpeg-3.4.2/libavcodec/mpeg4data.h 2018-01-01 06:35:47.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/mpeg4data.h 2019-07-08 00:28:51.126482719 +0800
@@ -373,4 +373,120 @@
99, 13, 15, 17, 19, 21, 23, 0
};
+/* Note these are different in studio mode */
+const uint16_t ff_mpeg4_studio_dc_luma[19][2]={
+ {0x0e, 6}, {0x06, 5}, {0x00, 4}, {0x02, 4},
+ {0x07, 3}, {0x05, 3}, {0x03, 3}, {0x02, 3},
+ {0x04, 3}, {0x06, 3}, {0x01, 4}, {0x1e, 7},
+ {0x3e, 8}, {0x7e, 9}, {0xfe, 10}, {0x1fe, 11},
+ {0x3fe, 12}, {0x7fe, 13}, {0x7ff, 13}
+};
+
+const uint16_t ff_mpeg4_studio_dc_chroma[19][2]={
+ {0x00, 4}, {0x02, 4}, {0x07, 3}, {0x05, 3},
+ {0x03, 3}, {0x02, 3}, {0x04, 3}, {0x06, 3},
+ {0x01, 4}, {0x06, 5}, {0x0e, 6}, {0x1e, 7},
+ {0x3e, 8}, {0x7e, 9}, {0xfe, 10}, {0x1fe, 11},
+ {0x3fe, 12}, {0x7fe, 13}, {0x7ff, 13}
+};
+
+const uint16_t ff_mpeg4_studio_intra[12][22][2]={
+ {
+ {0x05, 4}, {0x04, 4}, {0x05, 7}, {0x09, 9},
+ {0x21, 11}, {0x41, 12}, {0x81, 13}, {0x03, 4},
+ {0x03, 5}, {0x05, 6}, {0x04, 7}, {0x03, 7},
+ {0x05, 8}, {0x03, 2}, {0x05, 3}, {0x04, 3},
+ {0x03, 3}, {0x02, 4}, {0x04, 6}, {0x03, 6},
+ {0x11, 10}, {0x80, 13}
+ },
+ {
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x01, 1}, {0x01, 2},
+ {0x01, 3}, {0x01, 4}, {0x01, 5}, {0x03, 7},
+ {0x05, 8}, {0x04, 8}
+ },
+ {
+ {0x05, 3}, {0x03, 5}, {0x02, 5}, {0x03, 7},
+ {0x09, 9}, {0x103, 14}, {0x102, 14}, {0x04, 3},
+ {0x03, 3}, {0x03, 4}, {0x02, 4}, {0x03, 6},
+ {0x11, 10}, {0x03, 2}, {0x02, 3}, {0x02, 6},
+ {0x05, 8}, {0x21, 11}, {0x83, 13}, {0x101, 14},
+ {0x201, 15}, {0x82, 13}
+ },
+ {
+ {0x05, 5}, {0x05, 4}, {0x04, 5}, {0x03, 6},
+ {0x09, 9}, {0x83, 13}, {0x82, 13}, {0x03, 3},
+ {0x04, 4}, {0x03, 4}, {0x03, 5}, {0x05, 8},
+ {0x81, 13}, {0x03, 2}, {0x02, 2}, {0x02, 5},
+ {0x02, 6}, {0x03, 7}, {0x11, 10}, {0x43, 12},
+ {0x80, 13}, {0x42, 12}
+ },
+ {
+ {0x05, 7}, {0x03, 4}, {0x03, 5}, {0x04, 7},
+ {0x09, 9}, {0x83, 13}, {0x101, 14}, {0x03, 3},
+ {0x02, 4}, {0x05, 6}, {0x03, 7}, {0x11, 10},
+ {0x201, 15}, {0x03, 2}, {0x02, 2}, {0x02, 3},
+ {0x04, 6}, {0x03, 6}, {0x05, 8}, {0x21, 11},
+ {0x82, 13}, {0x81, 13}
+ },
+ {
+ {0x13, 10}, {0x03, 5}, {0x05, 7}, {0x12, 10},
+ {0x43, 12}, {0x83, 13}, {0x82, 13}, {0x02, 5},
+ {0x04, 7}, {0x05, 8}, {0x23, 11}, {0x81, 13},
+ {0x101, 14}, {0x03, 2}, {0x02, 2}, {0x01, 2},
+ {0x01, 3}, {0x03, 6}, {0x03, 7}, {0x22, 11},
+ {0x201, 15}, {0x42, 12}
+ },
+ {
+ {0x23, 11}, {0x01, 4}, {0x07, 8}, {0x13, 10},
+ {0x22, 11}, {0x103, 14}, {0x102, 14}, {0x03, 6},
+ {0x06, 8}, {0x12, 10}, {0x43, 12}, {0x101, 14},
+ {0x201, 15}, {0x03, 3}, {0x02, 3}, {0x03, 2},
+ {0x02, 2}, {0x01, 3}, {0x02, 6}, {0x05, 8},
+ {0x42, 12}, {0x41, 12}
+ },
+ {
+ {0x0b, 9}, {0x03, 5}, {0x07, 8}, {0x07, 7},
+ {0x06, 7}, {0x23, 11}, {0x41, 12}, {0x05, 7},
+ {0x06, 8}, {0x0a, 9}, {0x13, 10}, {0x22, 11},
+ {0x40, 12}, {0x03, 4}, {0x02, 4}, {0x03, 2},
+ {0x02, 2}, {0x01, 2}, {0x02, 5}, {0x04, 7},
+ {0x12, 10}, {0x21, 11}
+ },
+ {
+ {0x15, 10}, {0x03, 6}, {0x14, 10}, {0x23, 11},
+ {0x07, 8}, {0x43, 12}, {0x81, 13}, {0x06, 8},
+ {0x0b, 9}, {0x13, 10}, {0x12, 10}, {0x42, 12},
+ {0x80, 13}, {0x01, 4}, {0x03, 3}, {0x02, 3},
+ {0x03, 2}, {0x02, 2}, {0x01, 3}, {0x02, 6},
+ {0x22, 11}, {0x41, 12}
+ },
+ {
+ {0x43, 12}, {0x05, 6}, {0x07, 8}, {0x04, 6},
+ {0x03, 6}, {0x13, 10}, {0x42, 12}, {0x05, 7},
+ {0x04, 7}, {0x06, 8}, {0x12, 10}, {0x41, 12},
+ {0x40, 12}, {0x03, 5}, {0x03, 4}, {0x03, 3},
+ {0x02, 3}, {0x03, 2}, {0x02, 2}, {0x02, 4},
+ {0x05, 8}, {0x11, 10}
+ },
+ {
+ {0x83, 13}, {0x05, 7}, {0x07, 8}, {0x03, 4},
+ {0x21, 11}, {0x82, 13}, {0x81, 13}, {0x04, 7},
+ {0x06, 8}, {0x0b, 9}, {0x0a, 9}, {0x11, 10},
+ {0x80, 13}, {0x03, 5}, {0x02, 5}, {0x02, 4},
+ {0x03, 3}, {0x02, 3}, {0x03, 2}, {0x02, 2},
+ {0x03, 6}, {0x09, 9}
+ },
+ {
+ {0x13, 10}, {0x03, 5}, {0x03, 6}, {0x0d, 9},
+ {0x0c, 9}, {0x21, 11}, {0x20, 11}, {0x02, 5},
+ {0x02, 6}, {0x07, 8}, {0x0b, 9}, {0x12, 10},
+ {0x11, 10}, {0x05, 3}, {0x04, 3}, {0x05, 4},
+ {0x04, 4}, {0x03, 4}, {0x02, 4}, {0x03, 3},
+ {0x03, 2}, {0x0a, 9}
+ }
+};
+
#endif /* AVCODEC_MPEG4DATA_H */
diff -Nura ffmpeg-3.4.2/libavcodec/mpeg4videodec.c ffmpeg-3.4.2_new/libavcodec/mpeg4videodec.c
--- ffmpeg-3.4.2/libavcodec/mpeg4videodec.c 2018-02-12 08:29:18.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/mpeg4videodec.c 2019-07-08 00:29:04.158603338 +0800
@@ -43,6 +43,7 @@
#define SPRITE_TRAJ_VLC_BITS 6
#define DC_VLC_BITS 9
#define MB_TYPE_B_VLC_BITS 4
+#define STUDIO_INTRA_BITS 9
static VLC dc_lum, dc_chrom;
static VLC sprite_trajectory;
@@ -523,6 +524,55 @@
return 0;
}
+static void reset_studio_dc_predictors(MpegEncContext *s)
+{
+ /* Reset DC Predictors */
+ s->last_dc[0] =
+ s->last_dc[1] =
+ s->last_dc[2] = 1 << (s->avctx->bits_per_raw_sample + s->dct_precision + s->intra_dc_precision - 1);
+}
+
+/**
+ * Decode the next video packet.
+ * @return <0 if something went wrong
+ */
+int ff_mpeg4_decode_studio_slice_header(Mpeg4DecContext *ctx)
+{
+ MpegEncContext *s = &ctx->m;
+ GetBitContext *gb = &s->gb;
+ unsigned vlc_len;
+ uint16_t mb_num;
+
+ if (get_bits_left(gb) >= 32 && get_bits_long(gb, 32) == SLICE_START_CODE) {
+ vlc_len = av_log2(s->mb_width * s->mb_height) + 1;
+ mb_num = get_bits(gb, vlc_len);
+
+ if (mb_num >= s->mb_num)
+ return AVERROR_INVALIDDATA;
+
+ s->mb_x = mb_num % s->mb_width;
+ s->mb_y = mb_num / s->mb_width;
+
+ if (ctx->shape != BIN_ONLY_SHAPE)
+ s->qscale = mpeg_get_qscale(s);
+
+ if (get_bits1(gb)) { /* slice_extension_flag */
+ skip_bits1(gb); /* intra_slice */
+ skip_bits1(gb); /* slice_VOP_id_enable */
+ skip_bits(gb, 6); /* slice_VOP_id */
+ while (get_bits1(gb)) /* extra_bit_slice */
+ skip_bits(gb, 8); /* extra_information_slice */
+ }
+
+ reset_studio_dc_predictors(s);
+ }
+ else {
+ return AVERROR_INVALIDDATA;
+ }
+
+ return 0;
+}
+
/**
* Get the average motion vector for a GMC MB.
* @param n either 0 for the x component or 1 for y
@@ -1716,6 +1766,189 @@
return SLICE_OK;
}
+/* As per spec, studio start code search isn't the same as the old type of start code */
+static void next_start_code_studio(GetBitContext *gb)
+{
+ align_get_bits(gb);
+
+ while (get_bits_left(gb) >= 24 && show_bits_long(gb, 24) != 0x1) {
+ get_bits(gb, 8);
+ }
+}
+
+/* additional_code, vlc index */
+static const uint8_t ac_state_tab[22][2] =
+{
+ {0, 0},
+ {0, 1},
+ {1, 1},
+ {2, 1},
+ {3, 1},
+ {4, 1},
+ {5, 1},
+ {1, 2},
+ {2, 2},
+ {3, 2},
+ {4, 2},
+ {5, 2},
+ {6, 2},
+ {1, 3},
+ {2, 4},
+ {3, 5},
+ {4, 6},
+ {5, 7},
+ {6, 8},
+ {7, 9},
+ {8, 10},
+ {0, 11}
+};
+
+static int mpeg4_decode_studio_block(MpegEncContext *s, int32_t block[64], int n)
+{
+ Mpeg4DecContext *ctx = s->avctx->priv_data;
+
+ int cc, dct_dc_size, dct_diff, code, j, idx = 1, group = 0, run = 0,
+ additional_code_len, sign, mismatch;
+ VLC *cur_vlc = &ctx->studio_intra_tab[0];
+ uint8_t *const scantable = s->intra_scantable.permutated;
+ const uint16_t *quant_matrix;
+ uint32_t flc;
+ const int min = -1 * (1 << (s->avctx->bits_per_raw_sample + 6));
+ const int max = ((1 << (s->avctx->bits_per_raw_sample + 6)) - 1);
+
+ mismatch = 1;
+
+ memset(block, 0, 64 * sizeof(int32_t));
+
+ if (n < 4) {
+ cc = 0;
+ dct_dc_size = get_vlc2(&s->gb, ctx->studio_luma_dc.table, STUDIO_INTRA_BITS, 2);
+ quant_matrix = s->intra_matrix;
+ } else {
+ cc = (n & 1) + 1;
+ if (ctx->rgb)
+ dct_dc_size = get_vlc2(&s->gb, ctx->studio_luma_dc.table, STUDIO_INTRA_BITS, 2);
+ else
+ dct_dc_size = get_vlc2(&s->gb, ctx->studio_chroma_dc.table, STUDIO_INTRA_BITS, 2);
+ quant_matrix = s->chroma_intra_matrix;
+ }
+
+ if (dct_dc_size < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "illegal dct_dc_size vlc\n");
+ return AVERROR_INVALIDDATA;
+ } else if (dct_dc_size == 0) {
+ dct_diff = 0;
+ } else {
+ dct_diff = get_xbits(&s->gb, dct_dc_size);
+
+ if (dct_dc_size > 8) {
+ if(!check_marker(s->avctx, &s->gb, "dct_dc_size > 8"))
+ return AVERROR_INVALIDDATA;
+ }
+
+ }
+
+ s->last_dc[cc] += dct_diff;
+
+ if (s->mpeg_quant)
+ block[0] = s->last_dc[cc] * (8 >> s->intra_dc_precision);
+ else
+ block[0] = s->last_dc[cc] * (8 >> s->intra_dc_precision) * (8 >> s->dct_precision);
+ /* TODO: support mpeg_quant for AC coefficients */
+
+ block[0] = av_clip(block[0], min, max);
+ mismatch ^= block[0];
+
+ /* AC Coefficients */
+ while (1) {
+ group = get_vlc2(&s->gb, cur_vlc->table, STUDIO_INTRA_BITS, 2);
+
+ if (group < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "illegal ac coefficient group vlc\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ additional_code_len = ac_state_tab[group][0];
+ cur_vlc = &ctx->studio_intra_tab[ac_state_tab[group][1]];
+
+ if (group == 0) {
+ /* End of Block */
+ break;
+ } else if (group >= 1 && group <= 6) {
+ /* Zero run length (Table B.47) */
+ run = 1 << additional_code_len;
+ if (additional_code_len)
+ run += get_bits(&s->gb, additional_code_len);
+ idx += run;
+ continue;
+ } else if (group >= 7 && group <= 12) {
+ /* Zero run length and +/-1 level (Table B.48) */
+ code = get_bits(&s->gb, additional_code_len);
+ sign = code & 1;
+ code >>= 1;
+ run = (1 << (additional_code_len - 1)) + code;
+ idx += run;
+ j = scantable[idx++];
+ block[j] = sign ? 1 : -1;
+ } else if (group >= 13 && group <= 20) {
+ /* Level value (Table B.49) */
+ j = scantable[idx++];
+ block[j] = get_xbits(&s->gb, additional_code_len);
+ } else if (group == 21) {
+ /* Escape */
+ j = scantable[idx++];
+ additional_code_len = s->avctx->bits_per_raw_sample + s->dct_precision + 4;
+ flc = get_bits(&s->gb, additional_code_len);
+ if (flc >> (additional_code_len-1))
+ block[j] = -1 * (( flc ^ ((1 << additional_code_len) -1)) + 1);
+ else
+ block[j] = flc;
+ }
+ block[j] = ((8 * 2 * block[j] * quant_matrix[j] * s->qscale) >> s->dct_precision) / 32;
+ block[j] = av_clip(block[j], min, max);
+ mismatch ^= block[j];
+ }
+
+ block[63] ^= mismatch & 1;
+
+ return 0;
+}
+
+static int mpeg4_decode_studio_mb(MpegEncContext *s, int16_t block_[12][64])
+{
+ int i;
+
+ /* StudioMacroblock */
+ /* Assumes I-VOP */
+ s->mb_intra = 1;
+ if (get_bits1(&s->gb)) { /* compression_mode */
+ /* DCT */
+ /* macroblock_type, 1 or 2-bit VLC */
+ if (!get_bits1(&s->gb)) {
+ skip_bits1(&s->gb);
+ s->qscale = mpeg_get_qscale(s);
+ }
+
+ for (i = 0; i < mpeg4_block_count[s->chroma_format]; i++) {
+ if (mpeg4_decode_studio_block(s, (*s->block32)[i], i) < 0)
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ /* DPCM */
+ check_marker(s->avctx, &s->gb, "DPCM block start");
+ avpriv_request_sample(s->avctx, "DPCM encoded block");
+ next_start_code_studio(&s->gb);
+ return SLICE_ERROR;
+ }
+
+ if (get_bits_left(&s->gb) >= 24 && show_bits(&s->gb, 23) == 0) {
+ next_start_code_studio(&s->gb);
+ return SLICE_END;
+ }
+
+ return SLICE_OK;
+}
+
static int mpeg4_decode_gop_header(MpegEncContext *s, GetBitContext *gb)
{
int hours, minutes, seconds;
@@ -1738,20 +1971,68 @@
return 0;
}
-static int mpeg4_decode_profile_level(MpegEncContext *s, GetBitContext *gb)
+static int mpeg4_decode_profile_level(MpegEncContext *s, GetBitContext *gb, int *profile, int *level)
{
- s->avctx->profile = get_bits(gb, 4);
- s->avctx->level = get_bits(gb, 4);
+ *profile = get_bits(gb, 4);
+ *level = get_bits(gb, 4);
// for Simple profile, level 0
- if (s->avctx->profile == 0 && s->avctx->level == 8) {
- s->avctx->level = 0;
+ if (*profile == 0 && *level == 8) {
+ *level = 0;
}
return 0;
}
+static int mpeg4_decode_visual_object(MpegEncContext *s, GetBitContext *gb)
+{
+ int visual_object_type;
+ int is_visual_object_identifier = get_bits1(gb);
+
+ if (is_visual_object_identifier) {
+ skip_bits(gb, 4+3);
+ }
+ visual_object_type = get_bits(gb, 4);
+
+ if (visual_object_type == VOT_VIDEO_ID ||
+ visual_object_type == VOT_STILL_TEXTURE_ID) {
+ int video_signal_type = get_bits1(gb);
+ if (video_signal_type) {
+ int video_format = get_bits(gb, 3);
+ int video_range = get_bits1(gb);
+ int color_description = get_bits1(gb);
+
+ s->avctx->color_range = video_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+
+ if (color_description) {
+ s->avctx->color_primaries = get_bits(gb, 8);
+ s->avctx->color_trc = get_bits(gb, 8);
+ s->avctx->colorspace = get_bits(gb, 8);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static void mpeg4_load_default_matrices(MpegEncContext *s)
+{
+ int i, v;
+
+ /* load default matrices */
+ for (i = 0; i < 64; i++) {
+ int j = s->idsp.idct_permutation[i];
+ v = ff_mpeg4_default_intra_matrix[i];
+ s->intra_matrix[j] = v;
+ s->chroma_intra_matrix[j] = v;
+
+ v = ff_mpeg4_default_non_intra_matrix[i];
+ s->inter_matrix[j] = v;
+ s->chroma_inter_matrix[j] = v;
+ }
+}
+
static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
{
MpegEncContext *s = &ctx->m;
@@ -1915,17 +2196,7 @@
if ((s->mpeg_quant = get_bits1(gb))) { /* vol_quant_type */
int i, v;
- /* load default matrixes */
- for (i = 0; i < 64; i++) {
- int j = s->idsp.idct_permutation[i];
- v = ff_mpeg4_default_intra_matrix[i];
- s->intra_matrix[j] = v;
- s->chroma_intra_matrix[j] = v;
-
- v = ff_mpeg4_default_non_intra_matrix[i];
- s->inter_matrix[j] = v;
- s->chroma_inter_matrix[j] = v;
- }
+ mpeg4_load_default_matrices(s);
/* load custom intra matrix */
if (get_bits1(gb)) {
@@ -2569,6 +2840,232 @@
return 0;
}
+static void read_quant_matrix_ext(MpegEncContext *s, GetBitContext *gb)
+{
+ int i, j, v;
+
+ if (get_bits1(gb)) {
+ /* intra_quantiser_matrix */
+ for (i = 0; i < 64; i++) {
+ v = get_bits(gb, 8);
+ j = s->idsp.idct_permutation[ff_zigzag_direct[i]];
+ s->intra_matrix[j] = v;
+ s->chroma_intra_matrix[j] = v;
+ }
+ }
+
+ if (get_bits1(gb)) {
+ /* non_intra_quantiser_matrix */
+ for (i = 0; i < 64; i++) {
+ get_bits(gb, 8);
+ }
+ }
+
+ if (get_bits1(gb)) {
+ /* chroma_intra_quantiser_matrix */
+ for (i = 0; i < 64; i++) {
+ v = get_bits(gb, 8);
+ j = s->idsp.idct_permutation[ff_zigzag_direct[i]];
+ s->chroma_intra_matrix[j] = v;
+ }
+ }
+
+ if (get_bits1(gb)) {
+ /* chroma_non_intra_quantiser_matrix */
+ for (i = 0; i < 64; i++) {
+ get_bits(gb, 8);
+ }
+ }
+
+ next_start_code_studio(gb);
+}
+
+static void extension_and_user_data(MpegEncContext *s, GetBitContext *gb, int id)
+{
+ uint32_t startcode;
+ uint8_t extension_type;
+
+ startcode = show_bits_long(gb, 32);
+ if (startcode == USER_DATA_STARTCODE || startcode == EXT_STARTCODE) {
+
+ if ((id == 2 || id == 4) && startcode == EXT_STARTCODE) {
+ skip_bits_long(gb, 32);
+ extension_type = get_bits(gb, 4);
+ if (extension_type == QUANT_MATRIX_EXT_ID)
+ read_quant_matrix_ext(s, gb);
+ }
+ }
+}
+
+static void decode_smpte_tc(Mpeg4DecContext *ctx, GetBitContext *gb)
+{
+ MpegEncContext *s = &ctx->m;
+
+ skip_bits(gb, 16); /* Time_code[63..48] */
+ check_marker(s->avctx, gb, "after Time_code[63..48]");
+ skip_bits(gb, 16); /* Time_code[47..32] */
+ check_marker(s->avctx, gb, "after Time_code[47..32]");
+ skip_bits(gb, 16); /* Time_code[31..16] */
+ check_marker(s->avctx, gb, "after Time_code[31..16]");
+ skip_bits(gb, 16); /* Time_code[15..0] */
+ check_marker(s->avctx, gb, "after Time_code[15..0]");
+ skip_bits(gb, 4); /* reserved_bits */
+}
+
+/**
+ * Decode the next studio vop header.
+ * @return <0 if something went wrong
+ */
+static int decode_studio_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
+{
+ MpegEncContext *s = &ctx->m;
+
+ if (get_bits_left(gb) <= 32)
+ return 0;
+
+ if (get_bits_long(gb, 32) != VOP_STARTCODE)
+ return AVERROR_INVALIDDATA;
+
+ s->decode_mb = mpeg4_decode_studio_mb;
+
+ decode_smpte_tc(ctx, gb);
+
+ skip_bits(gb, 10); /* temporal_reference */
+ skip_bits(gb, 2); /* vop_structure */
+ s->pict_type = get_bits(gb, 2) + AV_PICTURE_TYPE_I; /* vop_coding_type */
+ if (get_bits1(gb)) { /* vop_coded */
+ skip_bits1(gb); /* top_field_first */
+ skip_bits1(gb); /* repeat_first_field */
+ s->progressive_frame = get_bits1(gb) ^ 1; /* progressive_frame */
+ }
+
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
+ if (get_bits1(gb))
+ reset_studio_dc_predictors(s);
+ }
+
+ if (ctx->shape != BIN_ONLY_SHAPE) {
+ s->alternate_scan = get_bits1(gb);
+ s->frame_pred_frame_dct = get_bits1(gb);
+ s->dct_precision = get_bits(gb, 2);
+ s->intra_dc_precision = get_bits(gb, 2);
+ s->q_scale_type = get_bits1(gb);
+ }
+
+ if (s->alternate_scan) {
+ ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
+ } else {
+ ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
+ ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
+ ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
+ ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
+ }
+
+ mpeg4_load_default_matrices(s);
+
+ next_start_code_studio(gb);
+ extension_and_user_data(s, gb, 4);
+
+ return 0;
+}
+
+static int decode_studiovisualobject(Mpeg4DecContext *ctx, GetBitContext *gb)
+{
+ uint32_t startcode;
+ MpegEncContext *s = &ctx->m;
+ int visual_object_type, width, height;
+
+ startcode = get_bits_long(gb, 32);
+
+ /* StudioVisualObject() */
+ if (startcode == VISUAL_OBJ_STARTCODE) {
+ skip_bits(gb, 4); /* visual_object_verid */
+ visual_object_type = get_bits(gb, 4);
+
+ next_start_code_studio(gb);
+ extension_and_user_data(s, gb, 1);
+
+ if (visual_object_type == VOT_VIDEO_ID) {
+ /* StudioVideoObjectLayer */
+ skip_bits_long(gb, 32); /* video_object_start_code */
+ skip_bits_long(gb, 32); /* video_object_layer_start_code */
+ skip_bits1(gb); /* random_accessible_vol */
+ skip_bits(gb, 8); /* video_object_type_indication */
+ skip_bits(gb, 4); /* video_object_layer_verid */
+ ctx->shape = get_bits(gb, 2); /* video_object_layer_shape */
+ skip_bits(gb, 4); /* video_object_layer_shape_extension */
+ skip_bits1(gb); /* progressive_sequence */
+ if (ctx->shape != BIN_ONLY_SHAPE) {
+ ctx->rgb = get_bits1(gb); /* rgb_components */
+ s->chroma_format = get_bits(gb, 2); /* chroma_format */
+ if (!s->chroma_format) {
+ av_log(s->avctx, AV_LOG_ERROR, "illegal chroma format\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ s->avctx->bits_per_raw_sample = get_bits(gb, 4); /* bit_depth */
+ if (s->avctx->bits_per_raw_sample == 10) {
+ if (ctx->rgb) {
+ s->avctx->pix_fmt = AV_PIX_FMT_GBRP10;
+ }
+ else {
+ s->avctx->pix_fmt = s->chroma_format == CHROMA_422 ? AV_PIX_FMT_YUV422P10 : AV_PIX_FMT_YUV444P10;
+ }
+ }
+ else {
+ avpriv_request_sample(s->avctx, "MPEG-4 Studio profile bit-depth %u", s->avctx->bits_per_raw_sample);
+ return AVERROR_PATCHWELCOME;
+ }
+ }
+ if (ctx->shape == RECT_SHAPE) {
+ check_marker(s->avctx, gb, "before video_object_layer_width");
+ width = get_bits(gb, 14); /* video_object_layer_width */
+ check_marker(s->avctx, gb, "before video_object_layer_height");
+ height = get_bits(gb, 14); /* video_object_layer_height */
+ check_marker(s->avctx, gb, "after video_object_layer_height");
+
+ /* Do the same check as non-studio profile */
+ if (width && height) {
+ if (s->width && s->height &&
+ (s->width != width || s->height != height))
+ s->context_reinit = 1;
+ s->width = width;
+ s->height = height;
+ }
+ }
+ s->aspect_ratio_info = get_bits(gb, 4);
+ if (s->aspect_ratio_info == FF_ASPECT_EXTENDED) {
+ s->avctx->sample_aspect_ratio.num = get_bits(gb, 8); // par_width
+ s->avctx->sample_aspect_ratio.den = get_bits(gb, 8); // par_height
+ } else {
+ s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[s->aspect_ratio_info];
+ }
+ skip_bits(gb, 4); /* frame_rate_code */
+ skip_bits(gb, 15); /* first_half_bit_rate */
+ check_marker(s->avctx, gb, "after first_half_bit_rate");
+ skip_bits(gb, 15); /* latter_half_bit_rate */
+ check_marker(s->avctx, gb, "after latter_half_bit_rate");
+ skip_bits(gb, 15); /* first_half_vbv_buffer_size */
+ check_marker(s->avctx, gb, "after first_half_vbv_buffer_size");
+ skip_bits(gb, 3); /* latter_half_vbv_buffer_size */
+ skip_bits(gb, 11); /* first_half_vbv_buffer_size */
+ check_marker(s->avctx, gb, "after first_half_vbv_buffer_size");
+ skip_bits(gb, 15); /* latter_half_vbv_occupancy */
+ check_marker(s->avctx, gb, "after latter_half_vbv_occupancy");
+ s->low_delay = get_bits1(gb);
+ s->mpeg_quant = get_bits1(gb); /* mpeg2_stream */
+
+ next_start_code_studio(gb);
+ extension_and_user_data(s, gb, 2);
+ }
+ }
+
+ return 0;
+}
+
/**
* Decode MPEG-4 headers.
* @return <0 if no VOP found (or a damaged one)
@@ -2681,7 +3178,27 @@
} else if (startcode == GOP_STARTCODE) {
mpeg4_decode_gop_header(s, gb);
} else if (startcode == VOS_STARTCODE) {
- mpeg4_decode_profile_level(s, gb);
+ int profile, level;
+ mpeg4_decode_profile_level(s, gb, &profile, &level);
+ if (profile == FF_PROFILE_MPEG4_SIMPLE_STUDIO &&
+ (level > 0 && level < 9)) {
+ s->studio_profile = 1;
+ next_start_code_studio(gb);
+ extension_and_user_data(s, gb, 0);
+ } else if (s->studio_profile) {
+ avpriv_request_sample(s->avctx, "Mixes studio and non studio profile\n");
+ return AVERROR_PATCHWELCOME;
+ }
+ s->avctx->profile = profile;
+ s->avctx->level = level;
+ } else if (startcode == VISUAL_OBJ_STARTCODE) {
+ if (s->studio_profile) {
+ if ((ret = decode_studiovisualobject(ctx, gb)) < 0)
+ return ret;
+ break;
+ }
+ } else if (startcode == VISUAL_OBJ_STARTCODE) {
+ mpeg4_decode_visual_object(s, gb);
} else if (startcode == VOP_STARTCODE) {
break;
}
@@ -2695,7 +3212,15 @@
s->low_delay = 1;
s->avctx->has_b_frames = !s->low_delay;
- return decode_vop_header(ctx, gb);
+ if (s->studio_profile) {
+ av_assert0(s->avctx->profile == FF_PROFILE_MPEG4_SIMPLE_STUDIO);
+ if (!s->avctx->bits_per_raw_sample) {
+ av_log(s->avctx, AV_LOG_ERROR, "Missing VOL header\n");
+ return AVERROR_INVALIDDATA;
+ }
+ return decode_studio_vop_header(ctx, gb);
+ } else
+ return decode_vop_header(ctx, gb);
}
av_cold void ff_mpeg4videodec_static_init(void) {
@@ -2795,6 +3320,37 @@
}
#endif
+static av_cold int init_studio_vlcs(Mpeg4DecContext *ctx)
+{
+ int i, ret;
+
+ for (i = 0; i < 12; i++) {
+ ret = init_vlc(&ctx->studio_intra_tab[i], STUDIO_INTRA_BITS, 22,
+ &ff_mpeg4_studio_intra[i][0][1], 4, 2,
+ &ff_mpeg4_studio_intra[i][0][0], 4, 2,
+ 0);
+
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = init_vlc(&ctx->studio_luma_dc, STUDIO_INTRA_BITS, 19,
+ &ff_mpeg4_studio_dc_luma[0][1], 4, 2,
+ &ff_mpeg4_studio_dc_luma[0][0], 4, 2,
+ 0);
+ if (ret < 0)
+ return ret;
+
+ ret = init_vlc(&ctx->studio_chroma_dc, STUDIO_INTRA_BITS, 19,
+ &ff_mpeg4_studio_dc_chroma[0][1], 4, 2,
+ &ff_mpeg4_studio_dc_chroma[0][0], 4, 2,
+ 0);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
static av_cold int decode_init(AVCodecContext *avctx)
{
Mpeg4DecContext *ctx = avctx->priv_data;
@@ -2810,6 +3366,8 @@
return ret;
ff_mpeg4videodec_static_init();
+ if ((ret = init_studio_vlcs(ctx)) < 0)
+ return ret;
s->h263_pred = 1;
s->low_delay = 0; /* default, might be overridden in the vol header during header parsing */
diff -Nura ffmpeg-3.4.2/libavcodec/mpeg4video.h ffmpeg-3.4.2_new/libavcodec/mpeg4video.h
--- ffmpeg-3.4.2/libavcodec/mpeg4video.h 2018-01-01 06:35:47.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/mpeg4video.h 2019-07-08 00:29:17.774729353 +0800
@@ -43,6 +43,9 @@
#define ACE_VO_TYPE 12
#define ADV_SIMPLE_VO_TYPE 17
+#define VOT_VIDEO_ID 1
+#define VOT_STILL_TEXTURE_ID 2
+
// aspect_ratio_info
#define EXTENDED_PAR 15
@@ -58,6 +61,10 @@
#define GOP_STARTCODE 0x1B3
#define VISUAL_OBJ_STARTCODE 0x1B5
#define VOP_STARTCODE 0x1B6
+#define SLICE_STARTCODE 0x1B7
+#define EXT_STARTCODE 0x1B8
+
+#define QUANT_MATRIX_EXT_ID 0x3
/* smaller packets likely don't contain a real frame */
#define MAX_NVOP_SIZE 19
@@ -105,8 +112,16 @@
int cplx_estimation_trash_i;
int cplx_estimation_trash_p;
int cplx_estimation_trash_b;
+
+ VLC studio_intra_tab[12];
+ VLC studio_luma_dc;
+ VLC studio_chroma_dc;
+
+ int rgb;
} Mpeg4DecContext;
+static const uint8_t mpeg4_block_count[4] = {0, 6, 8, 12};
+
/* dc encoding for MPEG-4 */
extern const uint8_t ff_mpeg4_DCtab_lum[13][2];
extern const uint8_t ff_mpeg4_DCtab_chrom[13][2];
@@ -134,6 +149,10 @@
extern const uint8_t ff_mpeg4_dc_threshold[8];
+extern const uint16_t ff_mpeg4_studio_dc_luma[19][2];
+extern const uint16_t ff_mpeg4_studio_dc_chroma[19][2];
+extern const uint16_t ff_mpeg4_studio_intra[12][22][2];
+
void ff_mpeg4_encode_mb(MpegEncContext *s,
int16_t block[6][64],
int motion_x, int motion_y);
@@ -152,6 +171,7 @@
int ff_mpeg4_decode_partitions(Mpeg4DecContext *ctx);
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
int ff_mpeg4_decode_video_packet_header(Mpeg4DecContext *ctx);
+int ff_mpeg4_decode_studio_slice_header(Mpeg4DecContext *ctx);
void ff_mpeg4_init_direct_mv(MpegEncContext *s);
void ff_mpeg4videodec_static_init(void);
int ff_mpeg4_workaround_bugs(AVCodecContext *avctx);
diff -Nura ffmpeg-3.4.2/libavcodec/mpegvideo.c ffmpeg-3.4.2_new/libavcodec/mpegvideo.c
--- ffmpeg-3.4.2/libavcodec/mpegvideo.c 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/mpegvideo.c 2019-07-08 00:29:30.551847603 +0800
@@ -386,6 +386,9 @@
for (i = 0; i < 12; i++) {
s->pblocks[i] = &s->block[i];
}
+
+ FF_ALLOCZ_OR_GOTO(s->avctx, s->block32, sizeof(*s->block32), fail)
+
if (s->avctx->codec_tag == AV_RL32("VCR2")) {
// exchange uv
FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
@@ -421,6 +424,7 @@
av_freep(&s->me.map);
av_freep(&s->me.score_map);
av_freep(&s->blocks);
+ av_freep(&s->block32);
av_freep(&s->ac_val_base);
s->block = NULL;
}
@@ -438,6 +442,7 @@
COPY(me.score_map);
COPY(blocks);
COPY(block);
+ COPY(block32);
COPY(start_mb_y);
COPY(end_mb_y);
COPY(me.map_generation);
@@ -811,6 +816,7 @@
s->dct_error_sum = NULL;
s->block = NULL;
s->blocks = NULL;
+ s->block32 = NULL;
memset(s->pblocks, 0, sizeof(s->pblocks));
s->ac_val_base = NULL;
s->ac_val[0] =
@@ -2657,8 +2663,31 @@
ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
}
} else {
+ /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
+ TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
+ if (s->avctx->bits_per_raw_sample > 8){
+ const int act_block_size = block_size * 2;
+ s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
+ s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
+ s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
+ s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
+
+ dct_linesize = uvlinesize << s->interlaced_dct;
+ dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
+
+ s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
+ s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
+ s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
+ s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
+ if(!s->chroma_x_shift){//Chroma444
+ s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
+ s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
+ s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
+ s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
+ }
+ }
/* dct only in intra block */
- if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
+ else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
@@ -2739,7 +2768,8 @@
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
const int uvlinesize = s->current_picture.f->linesize[1];
- const int mb_size= 4 - s->avctx->lowres;
+ const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
+ const int height_of_mb = 4 - s->avctx->lowres;
s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
@@ -2749,20 +2779,20 @@
s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
//block_index is not used by mpeg2, so it is not affected by chroma_format
- s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
- s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
- s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
+ s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
+ s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
+ s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
{
if(s->picture_structure==PICT_FRAME){
- s->dest[0] += s->mb_y * linesize << mb_size;
- s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
- s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
+ s->dest[0] += s->mb_y * linesize << height_of_mb;
+ s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
+ s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
}else{
- s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
- s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
- s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
+ s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
+ s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
+ s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
}
}
diff -Nura ffmpeg-3.4.2/libavcodec/mpegvideo.h ffmpeg-3.4.2_new/libavcodec/mpegvideo.h
--- ffmpeg-3.4.2/libavcodec/mpegvideo.h 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/mpegvideo.h 2019-07-08 00:29:40.806942512 +0800
@@ -45,6 +45,7 @@
#include "mpegpicture.h"
#include "mpegvideodsp.h"
#include "mpegvideoencdsp.h"
+#include "mpegvideodata.h"
#include "pixblockdsp.h"
#include "put_bits.h"
#include "ratecontrol.h"
@@ -71,6 +72,8 @@
#define SLICE_MAX_START_CODE 0x000001af
#define EXT_START_CODE 0x000001b5
#define USER_START_CODE 0x000001b2
+#define SLICE_START_CODE 0x000001b7
+
/**
* MpegEncContext.
@@ -381,6 +384,8 @@
int custom_pcf;
/* MPEG-4 specific */
+ int studio_profile;
+ int dct_precision;
///< number of bits to represent the fractional part of time (encoder only)
int time_increment_bits;
int last_time_base;
@@ -497,7 +502,10 @@
int16_t (*block)[64]; ///< points to one of the following blocks
int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
- int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
+ int (*decode_mb)(struct MpegEncContext *s, int16_t block[12][64]); // used by some codecs to avoid a switch()
+
+ int32_t (*block32)[12][64];
+
#define SLICE_OK 0
#define SLICE_ERROR -1
#define SLICE_END -2 ///<end marker found
@@ -729,7 +737,8 @@
qpel_mc_func (*qpix_op)[16]);
static inline void ff_update_block_index(MpegEncContext *s){
- const int block_size= 8 >> s->avctx->lowres;
+ const int bytes_per_pixel = 1 + (s->avctx->bits_per_raw_sample > 8);
+ const int block_size= (8*bytes_per_pixel) >> s->avctx->lowres;
s->block_index[0]+=2;
s->block_index[1]+=2;
@@ -738,8 +747,8 @@
s->block_index[4]++;
s->block_index[5]++;
s->dest[0]+= 2*block_size;
- s->dest[1]+= block_size;
- s->dest[2]+= block_size;
+ s->dest[1]+= (2 >> s->chroma_x_shift) * block_size;
+ s->dest[2]+= (2 >> s->chroma_x_shift) * block_size;
}
static inline int get_bits_diff(MpegEncContext *s){
@@ -751,4 +760,13 @@
return bits - last;
}
+static inline int mpeg_get_qscale(MpegEncContext *s)
+{
+ int qscale = get_bits(&s->gb, 5);
+ if (s->q_scale_type)
+ return ff_mpeg2_non_linear_qscale[qscale];
+ else
+ return qscale << 1;
+}
+
#endif /* AVCODEC_MPEGVIDEO_H */
diff -Nura ffmpeg-3.4.2/libavcodec/simple_idct.c ffmpeg-3.4.2_new/libavcodec/simple_idct.c
--- ffmpeg-3.4.2/libavcodec/simple_idct.c 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/simple_idct.c 2019-07-08 00:29:53.919063861 +0800
@@ -30,6 +30,8 @@
#include "mathops.h"
#include "simple_idct.h"
+#define IN_IDCT_DEPTH 16
+
#define BIT_DEPTH 8
#include "simple_idct_template.c"
#undef BIT_DEPTH
@@ -46,6 +48,13 @@
#define BIT_DEPTH 12
#include "simple_idct_template.c"
#undef BIT_DEPTH
+#undef IN_IDCT_DEPTH
+
+#define IN_IDCT_DEPTH 32
+#define BIT_DEPTH 10
+#include "simple_idct_template.c"
+#undef BIT_DEPTH
+#undef IN_IDCT_DEPTH
/* 2x4x8 idct */
@@ -115,7 +124,7 @@
/* IDCT8 on each line */
for(i=0; i<8; i++) {
- idctRowCondDC_8(block + i*8, 0);
+ idctRowCondDC_int16_8bit(block + i*8, 0);
}
/* IDCT4 and store */
@@ -188,7 +197,7 @@
/* IDCT8 on each line */
for(i=0; i<4; i++) {
- idctRowCondDC_8(block + i*8, 0);
+ idctRowCondDC_int16_8bit(block + i*8, 0);
}
/* IDCT4 and store */
@@ -208,7 +217,7 @@
/* IDCT8 and store */
for(i=0; i<4; i++){
- idctSparseColAdd_8(dest + i, line_size, block + i);
+ idctSparseColAdd_int16_8bit(dest + i, line_size, block + i);
}
}
diff -Nura ffmpeg-3.4.2/libavcodec/simple_idct.h ffmpeg-3.4.2_new/libavcodec/simple_idct.h
--- ffmpeg-3.4.2/libavcodec/simple_idct.h 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/simple_idct.h 2019-07-08 00:30:00.279122632 +0800
@@ -31,20 +31,24 @@
#include <stddef.h>
#include <stdint.h>
-void ff_simple_idct_put_8(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
-void ff_simple_idct_add_8(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
-void ff_simple_idct_8(int16_t *block);
+void ff_simple_idct_put_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_add_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_int16_8bit(int16_t *block);
-void ff_simple_idct_put_10(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
-void ff_simple_idct_add_10(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
-void ff_simple_idct_10(int16_t *block);
+void ff_simple_idct_put_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_add_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_int16_10bit(int16_t *block);
-void ff_simple_idct_put_12(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
-void ff_simple_idct_add_12(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
-void ff_simple_idct_12(int16_t *block);
+void ff_simple_idct_put_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_add_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_int32_10bit(int16_t *block);
+
+void ff_simple_idct_put_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_add_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_int16_12bit(int16_t *block);
/**
- * Special version of ff_simple_idct_10() which does dequantization
+ * Special version of ff_simple_idct_int16_10bit() which does dequantization
* and scales by a factor of 2 more between the two IDCTs to account
* for larger scale of input coefficients.
*/
diff -Nura ffmpeg-3.4.2/libavcodec/simple_idct_template.c ffmpeg-3.4.2_new/libavcodec/simple_idct_template.c
--- ffmpeg-3.4.2/libavcodec/simple_idct_template.c 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/simple_idct_template.c 2019-07-08 00:30:13.463244461 +0800
@@ -77,6 +77,10 @@
#define ROW_SHIFT 13
#define COL_SHIFT 18
#define DC_SHIFT 1
+# elif IN_IDCT_DEPTH == 32
+#define ROW_SHIFT 13
+#define COL_SHIFT 21
+#define DC_SHIFT 2
# else
#define ROW_SHIFT 12
#define COL_SHIFT 19
@@ -109,11 +113,13 @@
#ifdef EXTRA_SHIFT
static inline void FUNC(idctRowCondDC_extrashift)(int16_t *row, int extra_shift)
#else
-static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift)
+static inline void FUNC6(idctRowCondDC)(idctin *row, int extra_shift)
#endif
{
SUINT a0, a1, a2, a3, b0, b1, b2, b3;
+// TODO: Add DC-only support for int32_t input
+#if IN_IDCT_DEPTH == 16
#if HAVE_FAST_64BIT
#define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN)
if (((AV_RN64A(row) & ~ROW0_MASK) | AV_RN64A(row+4)) == 0) {
@@ -148,6 +154,7 @@
return;
}
#endif
+#endif
a0 = (W4 * row[0]) + (1 << (ROW_SHIFT + extra_shift - 1));
a1 = a0;
@@ -168,7 +175,11 @@
b3 = MUL(W7, row[1]);
MAC(b3, -W5, row[3]);
+#if IN_IDCT_DEPTH == 32
+ if (AV_RN64A(row + 4) | AV_RN64A(row + 6)) {
+#else
if (AV_RN64A(row + 4)) {
+#endif
a0 += W4*row[4] + W6*row[6];
a1 += - W4*row[4] - W2*row[6];
a2 += - W4*row[4] + W2*row[6];
@@ -250,8 +261,8 @@
#ifdef EXTRA_SHIFT
static inline void FUNC(idctSparseCol_extrashift)(int16_t *col)
#else
-static inline void FUNC(idctSparseColPut)(pixel *dest, ptrdiff_t line_size,
- int16_t *col)
+static inline void FUNC6(idctSparseColPut)(pixel *dest, ptrdiff_t line_size,
+ idctin *col)
{
SUINT a0, a1, a2, a3, b0, b1, b2, b3;
@@ -274,8 +285,8 @@
dest[0] = av_clip_pixel((int)(a0 - b0) >> COL_SHIFT);
}
-static inline void FUNC(idctSparseColAdd)(pixel *dest, ptrdiff_t line_size,
- int16_t *col)
+static inline void FUNC6(idctSparseColAdd)(pixel *dest, ptrdiff_t line_size,
+ idctin *col)
{
int a0, a1, a2, a3, b0, b1, b2, b3;
@@ -298,7 +309,7 @@
dest[0] = av_clip_pixel(dest[0] + ((a0 - b0) >> COL_SHIFT));
}
-static inline void FUNC(idctSparseCol)(int16_t *col)
+static inline void FUNC6(idctSparseCol)(idctin *col)
#endif
{
int a0, a1, a2, a3, b0, b1, b2, b3;
@@ -316,21 +327,23 @@
}
#ifndef EXTRA_SHIFT
-void FUNC(ff_simple_idct_put)(uint8_t *dest_, ptrdiff_t line_size, int16_t *block)
+void FUNC6(ff_simple_idct_put)(uint8_t *dest_, ptrdiff_t line_size, int16_t *block_)
{
+ idctin *block = (idctin *)block_;
pixel *dest = (pixel *)dest_;
int i;
line_size /= sizeof(pixel);
for (i = 0; i < 8; i++)
- FUNC(idctRowCondDC)(block + i*8, 0);
+ FUNC6(idctRowCondDC)(block + i*8, 0);
for (i = 0; i < 8; i++)
- FUNC(idctSparseColPut)(dest + i, line_size, block + i);
+ FUNC6(idctSparseColPut)(dest + i, line_size, block + i);
}
-void FUNC(ff_simple_idct_add)(uint8_t *dest_, ptrdiff_t line_size, int16_t *block)
+#if IN_IDCT_DEPTH == 16
+void FUNC6(ff_simple_idct_add)(uint8_t *dest_, ptrdiff_t line_size, int16_t *block)
{
pixel *dest = (pixel *)dest_;
int i;
@@ -338,20 +351,21 @@
line_size /= sizeof(pixel);
for (i = 0; i < 8; i++)
- FUNC(idctRowCondDC)(block + i*8, 0);
+ FUNC6(idctRowCondDC)(block + i*8, 0);
for (i = 0; i < 8; i++)
- FUNC(idctSparseColAdd)(dest + i, line_size, block + i);
+ FUNC6(idctSparseColAdd)(dest + i, line_size, block + i);
}
-void FUNC(ff_simple_idct)(int16_t *block)
+void FUNC6(ff_simple_idct)(int16_t *block)
{
int i;
for (i = 0; i < 8; i++)
- FUNC(idctRowCondDC)(block + i*8, 0);
+ FUNC6(idctRowCondDC)(block + i*8, 0);
for (i = 0; i < 8; i++)
- FUNC(idctSparseCol)(block + i);
+ FUNC6(idctSparseCol)(block + i);
}
#endif
+#endif
diff -Nura ffmpeg-3.4.2/libavcodec/tests/dct.c ffmpeg-3.4.2_new/libavcodec/tests/dct.c
--- ffmpeg-3.4.2/libavcodec/tests/dct.c 2018-02-12 08:29:05.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/tests/dct.c 2019-07-08 00:30:34.348437454 +0800
@@ -82,9 +82,9 @@
static const struct algo idct_tab[] = {
{ "REF-DBL", ff_ref_idct, FF_IDCT_PERM_NONE },
{ "INT", ff_j_rev_dct, FF_IDCT_PERM_LIBMPEG2 },
- { "SIMPLE-C", ff_simple_idct_8, FF_IDCT_PERM_NONE },
- { "SIMPLE-C10", ff_simple_idct_10, FF_IDCT_PERM_NONE },
- { "SIMPLE-C12", ff_simple_idct_12, FF_IDCT_PERM_NONE, 0, 1 },
+ { "SIMPLE-C", ff_simple_idct_int16_8bit, FF_IDCT_PERM_NONE },
+ { "SIMPLE-C10", ff_simple_idct_int16_10bit, FF_IDCT_PERM_NONE },
+ { "SIMPLE-C12", ff_simple_idct_int16_12bit, FF_IDCT_PERM_NONE, 0, 1 },
{ "PR-C", ff_prores_idct_wrap, FF_IDCT_PERM_NONE, 0, 1 },
#if CONFIG_FAANIDCT
{ "FAANI", ff_faanidct, FF_IDCT_PERM_NONE },
diff -Nura ffmpeg-3.4.2/libavcodec/vc1.c ffmpeg-3.4.2_new/libavcodec/vc1.c
--- ffmpeg-3.4.2/libavcodec/vc1.c 2018-01-01 06:35:48.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/vc1.c 2019-07-08 00:30:47.014554498 +0800
@@ -314,11 +314,11 @@
v->multires = get_bits1(gb);
v->res_fasttx = get_bits1(gb);
if (!v->res_fasttx) {
- v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_8;
+ v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_int16_8bit;
v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
- v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;
+ v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_int16_8bit;
v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
diff -Nura ffmpeg-3.4.2/libavcodec/x86/idctdsp_init.c ffmpeg-3.4.2_new/libavcodec/x86/idctdsp_init.c
--- ffmpeg-3.4.2/libavcodec/x86/idctdsp_init.c 2018-02-12 08:29:06.000000000 +0800
+++ ffmpeg-3.4.2_new/libavcodec/x86/idctdsp_init.c 2019-07-08 00:31:09.583763051 +0800
@@ -123,6 +123,7 @@
}
if (avctx->bits_per_raw_sample == 10 &&
+ avctx->codec_id != AV_CODEC_ID_MPEG4 &&
(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
avctx->idct_algo == FF_IDCT_SIMPLE)) {
