[FFmpeg-devel] [PATCH v2 2/5] avcodec/adpcm_ima_amv: handle odd sample counts
Zane van Iperen
zane at zanevaniperen.com
Tue Nov 3 02:38:15 EET 2020
Signed-off-by: Zane van Iperen <zane at zanevaniperen.com>
---
libavcodec/adpcm.c | 25 ++-
tests/ref/fate/adpcm-ima-amv | 312 +++++++++++++++++------------------
2 files changed, 180 insertions(+), 157 deletions(-)
diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
index d34fd6c6e1..d0807cbd98 100644
--- a/libavcodec/adpcm.c
+++ b/libavcodec/adpcm.c
@@ -775,7 +775,6 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb,
case AV_CODEC_ID_ADPCM_IMA_DAT4:
case AV_CODEC_ID_ADPCM_IMA_MOFLEX:
case AV_CODEC_ID_ADPCM_IMA_ISS: header_size = 4 * ch; break;
- case AV_CODEC_ID_ADPCM_IMA_AMV: header_size = 8; break;
case AV_CODEC_ID_ADPCM_IMA_SMJPEG: header_size = 4 * ch; break;
}
if (header_size > 0)
@@ -783,6 +782,18 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb,
/* more complex formats */
switch (avctx->codec->id) {
+ case AV_CODEC_ID_ADPCM_IMA_AMV:
+ bytestream2_skip(gb, 4);
+
+ has_coded_samples = 1;
+ *coded_samples = bytestream2_get_le32u(gb);
+ nb_samples = (buf_size - 8) * 2;
+
+ if (*coded_samples == nb_samples - 1)
+ nb_samples = *coded_samples;
+
+ bytestream2_seek(gb, -8, SEEK_CUR);
+ break;
case AV_CODEC_ID_ADPCM_EA:
has_coded_samples = 1;
*coded_samples = bytestream2_get_le32(gb);
@@ -1690,6 +1701,13 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
c->status[0].step_index = bytestream2_get_byteu(&gb);
bytestream2_skipu(&gb, 5);
+
+ if (nb_samples & 1 && buf[buf_size - 1] & 0x0F) {
+ /* Holds true on all the http://samples.mplayerhq.hu/amv samples. */
+ av_log(avctx, AV_LOG_WARNING, "Last nibble set on packet with odd sample count.\n");
+ av_log(avctx, AV_LOG_WARNING, "Sample will be skipped.\n");
+ }
+
if (c->status[0].step_index > 88u) {
av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
c->status[0].step_index);
@@ -1702,6 +1720,11 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
*samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4, 3);
*samples++ = adpcm_ima_expand_nibble(&c->status[0], v & 0xf, 3);
}
+
+ if (nb_samples & 1) {
+ int v = bytestream2_get_byteu(&gb);
+ *samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4, 3);
+ }
break;
case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
for (i = 0; i < avctx->channels; i++) {
diff --git a/tests/ref/fate/adpcm-ima-amv b/tests/ref/fate/adpcm-ima-amv
index eb174dfa81..2f8c0a2cdf 100644
--- a/tests/ref/fate/adpcm-ima-amv
+++ b/tests/ref/fate/adpcm-ima-amv
@@ -8,159 +8,159 @@
0, 1378, 1378, 1378, 2756, 0x8462443f
0, 2756, 2756, 1378, 2756, 0x9f493ba6
0, 4134, 4134, 1378, 2756, 0x634e5f06
-0, 5512, 5512, 1380, 2760, 0x51f35cd4
-0, 6892, 6892, 1378, 2756, 0x011c51e5
-0, 8270, 8270, 1378, 2756, 0x8c2c198c
-0, 9648, 9648, 1378, 2756, 0x2b4a3397
-0, 11026, 11026, 1378, 2756, 0x63794f22
-0, 12404, 12404, 1378, 2756, 0xfc363898
-0, 13782, 13782, 1378, 2756, 0x0da5486e
-0, 15160, 15160, 1378, 2756, 0xbae17a5f
-0, 16538, 16538, 1380, 2760, 0xba266e1b
-0, 17918, 17918, 1378, 2756, 0xdfb61002
-0, 19296, 19296, 1378, 2756, 0x15d029da
-0, 20674, 20674, 1378, 2756, 0x7bc82012
-0, 22052, 22052, 1378, 2756, 0x002e6999
-0, 23430, 23430, 1378, 2756, 0x96346ba6
-0, 24808, 24808, 1378, 2756, 0x3d54543b
-0, 26186, 26186, 1380, 2760, 0x601786e1
-0, 27566, 27566, 1378, 2756, 0xf22a5793
-0, 28944, 28944, 1378, 2756, 0x21f54d49
-0, 30322, 30322, 1378, 2756, 0x0c6d4399
-0, 31700, 31700, 1378, 2756, 0x17282f8e
-0, 33078, 33078, 1378, 2756, 0xeb698f75
-0, 34456, 34456, 1378, 2756, 0x935e1de2
-0, 35834, 35834, 1380, 2760, 0xb6fb4293
-0, 37214, 37214, 1378, 2756, 0x485053dc
-0, 38592, 38592, 1378, 2756, 0x24c35027
-0, 39970, 39970, 1378, 2756, 0x09f323ee
-0, 41348, 41348, 1378, 2756, 0xbc7d58d5
-0, 42726, 42726, 1378, 2756, 0xaefd487c
-0, 44104, 44104, 1378, 2756, 0xaca16cc0
-0, 45482, 45482, 1380, 2760, 0x98a76091
-0, 46862, 46862, 1378, 2756, 0x5d357141
-0, 48240, 48240, 1378, 2756, 0x65ea2657
-0, 49618, 49618, 1378, 2756, 0xb5e1334a
-0, 50996, 50996, 1378, 2756, 0x32cd5d91
-0, 52374, 52374, 1378, 2756, 0xdc23722b
-0, 53752, 53752, 1378, 2756, 0x2ba34684
-0, 55130, 55130, 1378, 2756, 0xf9755ba8
-0, 56508, 56508, 1380, 2760, 0x24221ddb
-0, 57888, 57888, 1378, 2756, 0xef843aa4
-0, 59266, 59266, 1378, 2756, 0x420442fe
-0, 60644, 60644, 1378, 2756, 0x5a0933cb
-0, 62022, 62022, 1378, 2756, 0xef5f6d61
-0, 63400, 63400, 1378, 2756, 0xe57e6dc0
-0, 64778, 64778, 1378, 2756, 0xc0f0495a
-0, 66156, 66156, 1380, 2760, 0x2c3b55df
-0, 67536, 67536, 1378, 2756, 0x39c2586c
-0, 68914, 68914, 1378, 2756, 0x7ffc46e5
-0, 70292, 70292, 1378, 2756, 0xa2766664
-0, 71670, 71670, 1378, 2756, 0xacb50c6c
-0, 73048, 73048, 1378, 2756, 0x7f659084
-0, 74426, 74426, 1378, 2756, 0xc72e6a12
-0, 75804, 75804, 1380, 2760, 0xdb6944df
-0, 77184, 77184, 1378, 2756, 0x954f45c1
-0, 78562, 78562, 1378, 2756, 0xa9484240
-0, 79940, 79940, 1378, 2756, 0x1d595349
-0, 81318, 81318, 1378, 2756, 0xcf2a565e
-0, 82696, 82696, 1378, 2756, 0x391028d5
-0, 84074, 84074, 1378, 2756, 0x348db7ad
-0, 85452, 85452, 1380, 2760, 0xb69b5e3a
-0, 86832, 86832, 1378, 2756, 0xe3635fbe
-0, 88210, 88210, 1378, 2756, 0xdcad3654
-0, 89588, 89588, 1378, 2756, 0x5c17abef
-0, 90966, 90966, 1378, 2756, 0xb3235184
-0, 92344, 92344, 1378, 2756, 0xdabb64a6
-0, 93722, 93722, 1378, 2756, 0xa95dc58d
-0, 95100, 95100, 1380, 2760, 0x8e7ac9eb
-0, 96480, 96480, 1378, 2756, 0x492b658e
-0, 97858, 97858, 1378, 2756, 0x377483ab
-0, 99236, 99236, 1378, 2756, 0x2c250279
-0, 100614, 100614, 1378, 2756, 0x704dbdb3
-0, 101992, 101992, 1378, 2756, 0x800d7da2
-0, 103370, 103370, 1378, 2756, 0x872aa32e
-0, 104748, 104748, 1378, 2756, 0x2d4837fe
-0, 106126, 106126, 1380, 2760, 0xc89ea57e
-0, 107506, 107506, 1378, 2756, 0x6447d7ef
-0, 108884, 108884, 1378, 2756, 0x144f59cc
-0, 110262, 110262, 1378, 2756, 0xc667154e
-0, 111640, 111640, 1378, 2756, 0xf0de66ae
-0, 113018, 113018, 1378, 2756, 0xeabf3c32
-0, 114396, 114396, 1378, 2756, 0xe98e81d1
-0, 115774, 115774, 1380, 2760, 0x56aa5889
-0, 117154, 117154, 1378, 2756, 0x4fd34c0e
-0, 118532, 118532, 1378, 2756, 0x67cf6912
-0, 119910, 119910, 1378, 2756, 0xfa944def
-0, 121288, 121288, 1378, 2756, 0xc12f23b2
-0, 122666, 122666, 1378, 2756, 0x5ea325a2
-0, 124044, 124044, 1378, 2756, 0x2b245824
-0, 125422, 125422, 1380, 2760, 0x90ac533e
-0, 126802, 126802, 1378, 2756, 0xcca34d26
-0, 128180, 128180, 1378, 2756, 0xb5f820d0
-0, 129558, 129558, 1378, 2756, 0x27f24335
-0, 130936, 130936, 1378, 2756, 0x4a9e87b7
-0, 132314, 132314, 1378, 2756, 0xbd076129
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-0, 135070, 135070, 1380, 2760, 0xdf534478
-0, 136450, 136450, 1378, 2756, 0xca000a2e
-0, 137828, 137828, 1378, 2756, 0x87472df3
-0, 139206, 139206, 1378, 2756, 0x16733810
-0, 140584, 140584, 1378, 2756, 0xfa0734b4
-0, 141962, 141962, 1378, 2756, 0x5eff3fc4
-0, 143340, 143340, 1378, 2756, 0xf35346bd
-0, 144718, 144718, 1378, 2756, 0xac6411c5
-0, 146096, 146096, 1380, 2760, 0x478c3c56
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-0, 148854, 148854, 1378, 2756, 0xaef95a31
-0, 150232, 150232, 1378, 2756, 0x8aad29d1
-0, 151610, 151610, 1378, 2756, 0x626863f0
-0, 152988, 152988, 1378, 2756, 0x68c05707
-0, 154366, 154366, 1378, 2756, 0x437c5e8d
-0, 155744, 155744, 1380, 2760, 0x8eca4bdb
-0, 157124, 157124, 1378, 2756, 0x62bd4162
-0, 158502, 158502, 1378, 2756, 0x9f744aa4
-0, 159880, 159880, 1378, 2756, 0x0f3f6409
-0, 161258, 161258, 1378, 2756, 0x3fee827a
-0, 162636, 162636, 1378, 2756, 0x48a0ac19
-0, 164014, 164014, 1378, 2756, 0x8e4ce0d0
-0, 165392, 165392, 1380, 2760, 0xcda82236
-0, 166772, 166772, 1378, 2756, 0x0e523255
-0, 168150, 168150, 1378, 2756, 0x84103d30
-0, 169528, 169528, 1378, 2756, 0x13941cde
-0, 170906, 170906, 1378, 2756, 0x9fc834c5
-0, 172284, 172284, 1378, 2756, 0xc0217a77
-0, 173662, 173662, 1378, 2756, 0x3f643659
-0, 175040, 175040, 1380, 2760, 0x9dbd6002
-0, 176420, 176420, 1378, 2756, 0x94f046fb
-0, 177798, 177798, 1378, 2756, 0xab01fb12
-0, 179176, 179176, 1378, 2756, 0x04cffe5c
-0, 180554, 180554, 1378, 2756, 0xef661c5e
-0, 181932, 181932, 1378, 2756, 0x094c5fc5
-0, 183310, 183310, 1378, 2756, 0xe0c1486a
-0, 184688, 184688, 1380, 2760, 0x8c3535b7
-0, 186068, 186068, 1378, 2756, 0x594934aa
-0, 187446, 187446, 1378, 2756, 0x74007238
-0, 188824, 188824, 1378, 2756, 0x61f1394d
-0, 190202, 190202, 1378, 2756, 0x72584f07
-0, 191580, 191580, 1378, 2756, 0xced9acf9
-0, 192958, 192958, 1378, 2756, 0x7d2e3ea1
-0, 194336, 194336, 1378, 2756, 0x56c06897
-0, 195714, 195714, 1380, 2760, 0x19983bbf
-0, 197094, 197094, 1378, 2756, 0x4f884f27
-0, 198472, 198472, 1378, 2756, 0x81ab2f63
-0, 199850, 199850, 1378, 2756, 0x448e681d
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-0, 205362, 205362, 1380, 2760, 0x579e2035
-0, 206742, 206742, 1378, 2756, 0xd13e30e1
-0, 208120, 208120, 1378, 2756, 0x30b6412b
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-0, 212254, 212254, 1378, 2756, 0xf8d160e2
-0, 213632, 213632, 1378, 2756, 0xc1048154
-0, 215010, 215010, 1380, 2760, 0xb83548f4
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-0, 217768, 217768, 1378, 2756, 0x14ca54d3
-0, 219146, 219146, 1354, 2708, 0x85e82e8d
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+0, 11025, 11025, 1378, 2756, 0x63794f22
+0, 12403, 12403, 1378, 2756, 0xfc363898
+0, 13781, 13781, 1378, 2756, 0x0da5486e
+0, 15159, 15159, 1378, 2756, 0xbae17a5f
+0, 16537, 16537, 1379, 2758, 0xdde86dc6
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+0, 22050, 22050, 1378, 2756, 0x002e6999
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+0, 24806, 24806, 1378, 2756, 0x3d54543b
+0, 26184, 26184, 1379, 2758, 0x5248862b
+0, 27563, 27563, 1378, 2756, 0xf22a5793
+0, 28941, 28941, 1378, 2756, 0x21f54d49
+0, 30319, 30319, 1378, 2756, 0x0c6d4399
+0, 31697, 31697, 1378, 2756, 0x17282f8e
+0, 33075, 33075, 1378, 2756, 0xeb698f75
+0, 34453, 34453, 1378, 2756, 0x935e1de2
+0, 35831, 35831, 1379, 2758, 0x31d5425d
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+0, 38588, 38588, 1378, 2756, 0x24c35027
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+0, 48235, 48235, 1378, 2756, 0x65ea2657
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+0, 77176, 77176, 1378, 2756, 0x954f45c1
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+0, 85444, 85444, 1379, 2758, 0xfa185e28
+0, 86823, 86823, 1378, 2756, 0xe3635fbe
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+0, 89579, 89579, 1378, 2756, 0x5c17abef
+0, 90957, 90957, 1378, 2756, 0xb3235184
+0, 92335, 92335, 1378, 2756, 0xdabb64a6
+0, 93713, 93713, 1378, 2756, 0xa95dc58d
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+0, 96470, 96470, 1378, 2756, 0x492b658e
+0, 97848, 97848, 1378, 2756, 0x377483ab
+0, 99226, 99226, 1378, 2756, 0x2c250279
+0, 100604, 100604, 1378, 2756, 0x704dbdb3
+0, 101982, 101982, 1378, 2756, 0x800d7da2
+0, 103360, 103360, 1378, 2756, 0x872aa32e
+0, 104738, 104738, 1378, 2756, 0x2d4837fe
+0, 106116, 106116, 1379, 2758, 0x7d93a536
+0, 107495, 107495, 1378, 2756, 0x6447d7ef
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+0, 119898, 119898, 1378, 2756, 0xfa944def
+0, 121276, 121276, 1378, 2756, 0xc12f23b2
+0, 122654, 122654, 1378, 2756, 0x5ea325a2
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+0, 125410, 125410, 1379, 2758, 0xeb1f5203
+0, 126789, 126789, 1378, 2756, 0xcca34d26
+0, 128167, 128167, 1378, 2756, 0xb5f820d0
+0, 129545, 129545, 1378, 2756, 0x27f24335
+0, 130923, 130923, 1378, 2756, 0x4a9e87b7
+0, 132301, 132301, 1378, 2756, 0xbd076129
+0, 133679, 133679, 1378, 2756, 0x2e0e3f2e
+0, 135057, 135057, 1379, 2758, 0x5664442c
+0, 136436, 136436, 1378, 2756, 0xca000a2e
+0, 137814, 137814, 1378, 2756, 0x87472df3
+0, 139192, 139192, 1378, 2756, 0x16733810
+0, 140570, 140570, 1378, 2756, 0xfa0734b4
+0, 141948, 141948, 1378, 2756, 0x5eff3fc4
+0, 143326, 143326, 1378, 2756, 0xf35346bd
+0, 144704, 144704, 1378, 2756, 0xac6411c5
+0, 146082, 146082, 1379, 2758, 0xcfcf3ae7
+0, 147461, 147461, 1378, 2756, 0xebd30bdd
+0, 148839, 148839, 1378, 2756, 0xaef95a31
+0, 150217, 150217, 1378, 2756, 0x8aad29d1
+0, 151595, 151595, 1378, 2756, 0x626863f0
+0, 152973, 152973, 1378, 2756, 0x68c05707
+0, 154351, 154351, 1378, 2756, 0x437c5e8d
+0, 155729, 155729, 1379, 2758, 0xf7054b53
+0, 157108, 157108, 1378, 2756, 0x62bd4162
+0, 158486, 158486, 1378, 2756, 0x9f744aa4
+0, 159864, 159864, 1378, 2756, 0x0f3f6409
+0, 161242, 161242, 1378, 2756, 0x3fee827a
+0, 162620, 162620, 1378, 2756, 0x48a0ac19
+0, 163998, 163998, 1378, 2756, 0x8e4ce0d0
+0, 165376, 165376, 1379, 2758, 0x8a3b207f
+0, 166755, 166755, 1378, 2756, 0x0e523255
+0, 168133, 168133, 1378, 2756, 0x84103d30
+0, 169511, 169511, 1378, 2756, 0x13941cde
+0, 170889, 170889, 1378, 2756, 0x9fc834c5
+0, 172267, 172267, 1378, 2756, 0xc0217a77
+0, 173645, 173645, 1378, 2756, 0x3f643659
+0, 175023, 175023, 1379, 2758, 0xddac5fc3
+0, 176402, 176402, 1378, 2756, 0x94f046fb
+0, 177780, 177780, 1378, 2756, 0xab01fb12
+0, 179158, 179158, 1378, 2756, 0x04cffe5c
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+0, 206721, 206721, 1378, 2756, 0xd13e30e1
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+0, 209477, 209477, 1378, 2756, 0xbb1c3268
+0, 210855, 210855, 1378, 2756, 0xbc175b6a
+0, 212233, 212233, 1378, 2756, 0xf8d160e2
+0, 213611, 213611, 1378, 2756, 0xc1048154
+0, 214989, 214989, 1379, 2758, 0x26564885
+0, 216368, 216368, 1378, 2756, 0x22647962
+0, 217746, 217746, 1378, 2756, 0x14ca54d3
+0, 219124, 219124, 1376, 2752, 0x2c374add
--
2.28.0
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