diff options
| author | Paul B Mahol <onemda@gmail.com> | 2020-08-10 09:35:10 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2020-08-11 10:01:05 +0200 |
| commit | ba0825626ae2ebc120a32ae7765108d8984be6b6 (patch) | |
| tree | 45b0d8ce365f2cea0c2a6b643200955c784fde29 /libavcodec/cfhdenc.c | |
| parent | 16b79f3d3ae6d330b4b8b439dea14a0bf471c082 (diff) | |
avcodec/cfhdenc: optimize writting of small runcodes
Diffstat (limited to 'libavcodec/cfhdenc.c')
| -rw-r--r-- | libavcodec/cfhdenc.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/libavcodec/cfhdenc.c b/libavcodec/cfhdenc.c index 9b045c43c1..f2096f0986 100644 --- a/libavcodec/cfhdenc.c +++ b/libavcodec/cfhdenc.c @@ -94,8 +94,11 @@ static const unsigned codebook[256][2] = { }; /* Derived by extracting runcodes from existing tables from decoder */ -static const uint16_t runbook[8][3] = { - {1, 0x0000, 1}, {7, 0x0069, 12}, {8, 0x00D1, 20}, {9, 0x018A, 32}, +static const uint16_t runbook[18][3] = { + {1, 0x0000, 1}, {2, 0x0000, 2}, {3, 0x0000, 3}, {4, 0x0000, 4}, + {5, 0x0000, 5}, {6, 0x0000, 6}, {7, 0x0000, 7}, {8, 0x0000, 8}, + {9, 0x0000, 9}, {10, 0x0000, 10}, {11, 0x0000, 11}, + {7, 0x0069, 12}, {8, 0x00D1, 20}, {9, 0x018A, 32}, {10, 0x0343, 60}, {11, 0x0685, 100}, {13, 0x18BF, 180}, {13, 0x1BA5, 320}, }; @@ -329,7 +332,7 @@ static av_cold int cfhd_encode_init(AVCodecContext *avctx) s->rb[0].run = 0; - for (int i = 1, j = 0; i < 320 && j < 7; j++) { + for (int i = 1, j = 0; i < 320 && j < 17; j++) { int run = runbook[j][2]; int end = runbook[j+1][2]; @@ -340,8 +343,8 @@ static av_cold int cfhd_encode_init(AVCodecContext *avctx) } } - s->rb[320].bits = runbook[7][1]; - s->rb[320].size = runbook[7][0]; + s->rb[320].bits = runbook[17][1]; + s->rb[320].size = runbook[17][0]; s->rb[320].run = 320; for (int i = 0; i < 256; i++) { |