diff options
| author | Luca Barbato <lu_zero@gentoo.org> | 2012-10-11 18:55:53 +0200 |
|---|---|---|
| committer | Diego Biurrun <diego@biurrun.de> | 2012-10-16 15:45:55 +0200 |
| commit | 9a978b334b9b905c3bd4f858b9479c415ce61f51 (patch) | |
| tree | 02a594238bdd76d78fca7d51cc406a59e0a7bec7 /libavcodec | |
| parent | c0a6cac2920e47da9257845d6ded10138083fe6c (diff) | |
| download | ffmpeg-9a978b334b9b905c3bd4f858b9479c415ce61f51.tar.gz | |
ffv1: K&R formatting cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/ffv1.c | 1993 |
1 files changed, 1055 insertions, 938 deletions
diff --git a/libavcodec/ffv1.c b/libavcodec/ffv1.c index e6ee96d722..f290b940e8 100644 --- a/libavcodec/ffv1.c +++ b/libavcodec/ffv1.c @@ -25,6 +25,7 @@ * FF Video Codec 1 (a lossless codec) */ +#include "libavutil/avassert.h" #include "avcodec.h" #include "get_bits.h" #include "put_bits.h" @@ -32,7 +33,6 @@ #include "rangecoder.h" #include "golomb.h" #include "mathops.h" -#include "libavutil/avassert.h" #define MAX_PLANES 4 #define CONTEXT_SIZE 32 @@ -42,109 +42,109 @@ extern const uint8_t ff_log2_run[41]; -static const int8_t quant5_10bit[256]={ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-0,-0,-0,-0,-0,-0,-0,-0,-0,-0, +static const int8_t quant5_10bit[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0, }; -static const int8_t quant5[256]={ - 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1, +static const int8_t quant5[256] = { + 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1, }; -static const int8_t quant9_10bit[256]={ - 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-1,-1,-1,-1,-1,-1,-1,-1,-0,-0,-0,-0, +static const int8_t quant9_10bit[256] = { + 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, + -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, + -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, }; -static const int8_t quant11[256]={ - 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1, +static const int8_t quant11[256] = { + 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1, }; -static const uint8_t ver2_state[256]= { - 0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49, - 59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39, - 40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52, - 53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69, - 87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97, - 85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98, - 105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125, - 115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129, - 165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148, - 147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160, - 172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178, - 175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196, - 197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214, - 209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225, - 226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242, - 241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255, +static const uint8_t ver2_state[256] = { + 0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49, + 59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39, + 40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52, + 53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69, + 87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97, + 85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98, + 105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125, + 115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129, + 165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148, + 147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160, + 172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178, + 175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196, + 197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214, + 209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225, + 226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242, + 241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255, }; -typedef struct VlcState{ +typedef struct VlcState { int16_t drift; uint16_t error_sum; int8_t bias; uint8_t count; } VlcState; -typedef struct PlaneContext{ +typedef struct PlaneContext { int16_t quant_table[MAX_CONTEXT_INPUTS][256]; int quant_table_index; int context_count; @@ -155,7 +155,7 @@ typedef struct PlaneContext{ #define MAX_SLICES 256 -typedef struct FFV1Context{ +typedef struct FFV1Context { AVCodecContext *avctx; RangeCoder c; GetBitContext gb; @@ -169,7 +169,7 @@ typedef struct FFV1Context{ int picture_number; AVFrame picture; int plane_count; - int ac; ///< 1=range coder <-> 0=golomb rice + int ac; // 1 = range coder <-> 0 = golomb rice PlaneContext plane[MAX_PLANES]; int16_t quant_table[MAX_CONTEXT_INPUTS][256]; int16_t quant_tables[MAX_QUANT_TABLES][MAX_CONTEXT_INPUTS][256]; @@ -193,15 +193,16 @@ typedef struct FFV1Context{ int slice_height; int slice_x; int slice_y; -}FFV1Context; - -static av_always_inline int fold(int diff, int bits){ - if(bits==8) - diff= (int8_t)diff; - else{ - diff+= 1<<(bits-1); - diff&=(1<<bits)-1; - diff-= 1<<(bits-1); +} FFV1Context; + +static av_always_inline int fold(int diff, int bits) +{ + if (bits == 8) + diff = (int8_t)diff; + else { + diff += 1 << (bits - 1); + diff &= (1 << bits) - 1; + diff -= 1 << (bits - 1); } return diff; @@ -209,9 +210,9 @@ static av_always_inline int fold(int diff, int bits){ static inline int predict(int16_t *src, int16_t *last) { - const int LT= last[-1]; - const int T= last[ 0]; - const int L = src[-1]; + const int LT = last[-1]; + const int T = last[0]; + const int L = src[-1]; return mid_pred(L, L + T - LT, T); } @@ -219,218 +220,237 @@ static inline int predict(int16_t *src, int16_t *last) static inline int get_context(PlaneContext *p, int16_t *src, int16_t *last, int16_t *last2) { - const int LT= last[-1]; - const int T= last[ 0]; - const int RT= last[ 1]; - const int L = src[-1]; - - if(p->quant_table[3][127]){ - const int TT= last2[0]; - const int LL= src[-2]; - return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF] - +p->quant_table[3][(LL-L) & 0xFF] + p->quant_table[4][(TT-T) & 0xFF]; - }else - return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF]; + const int LT = last[-1]; + const int T = last[0]; + const int RT = last[1]; + const int L = src[-1]; + + if (p->quant_table[3][127]) { + const int TT = last2[0]; + const int LL = src[-2]; + return p->quant_table[0][(L - LT) & 0xFF] + + p->quant_table[1][(LT - T) & 0xFF] + + p->quant_table[2][(T - RT) & 0xFF] + + p->quant_table[3][(LL - L) & 0xFF] + + p->quant_table[4][(TT - T) & 0xFF]; + } else + return p->quant_table[0][(L - LT) & 0xFF] + + p->quant_table[1][(LT - T) & 0xFF] + + p->quant_table[2][(T - RT) & 0xFF]; } -static void find_best_state(uint8_t best_state[256][256], const uint8_t one_state[256]){ - int i,j,k,m; +static void find_best_state(uint8_t best_state[256][256], + const uint8_t one_state[256]) +{ + int i, j, k, m; double l2tab[256]; - for(i=1; i<256; i++) - l2tab[i]= log2(i/256.0); + for (i = 1; i < 256; i++) + l2tab[i] = log2(i / 256.0); - for(i=0; i<256; i++){ + for (i = 0; i < 256; i++) { double best_len[256]; - double p= i/256.0; - - for(j=0; j<256; j++) - best_len[j]= 1<<30; - - for(j=FFMAX(i-10,1); j<FFMIN(i+11,256); j++){ - double occ[256]={0}; - double len=0; - occ[j]=1.0; - for(k=0; k<256; k++){ - double newocc[256]={0}; - for(m=0; m<256; m++){ - if(occ[m]){ - len -=occ[m]*( p *l2tab[ m] - + (1-p)*l2tab[256-m]); + double p = i / 256.0; + + for (j = 0; j < 256; j++) + best_len[j] = 1 << 30; + + for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) { + double occ[256] = { 0 }; + double len = 0; + occ[j] = 1.0; + for (k = 0; k < 256; k++) { + double newocc[256] = { 0 }; + for (m = 0; m < 256; m++) + if (occ[m]) { + len -= occ[m] * (p * l2tab[m] + + (1 - p) * l2tab[256 - m]); } + if (len < best_len[k]) { + best_len[k] = len; + best_state[i][k] = j; } - if(len < best_len[k]){ - best_len[k]= len; - best_state[i][k]= j; - } - for(m=0; m<256; m++){ - if(occ[m]){ - newocc[ one_state[ m]] += occ[m]* p ; - newocc[256-one_state[256-m]] += occ[m]*(1-p); + for (m = 0; m < 256; m++) + if (occ[m]) { + newocc[one_state[m]] += occ[m] * p; + newocc[256 - one_state[256 - m]] += occ[m] * (1 - p); } - } memcpy(occ, newocc, sizeof(occ)); } } } } -static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed, uint64_t rc_stat[256][2], uint64_t rc_stat2[32][2]){ +static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c, + uint8_t *state, int v, + int is_signed, + uint64_t rc_stat[256][2], + uint64_t rc_stat2[32][2]) +{ int i; -#define put_rac(C,S,B) \ -do{\ - if(rc_stat){\ - rc_stat[*(S)][B]++;\ - rc_stat2[(S)-state][B]++;\ - }\ - put_rac(C,S,B);\ -}while(0) - - if(v){ - const int a= FFABS(v); - const int e= av_log2(a); - put_rac(c, state+0, 0); - if(e<=9){ - for(i=0; i<e; i++){ - put_rac(c, state+1+i, 1); //1..10 - } - put_rac(c, state+1+i, 0); - - for(i=e-1; i>=0; i--){ - put_rac(c, state+22+i, (a>>i)&1); //22..31 - } - - if(is_signed) - put_rac(c, state+11 + e, v < 0); //11..21 - }else{ - for(i=0; i<e; i++){ - put_rac(c, state+1+FFMIN(i,9), 1); //1..10 - } - put_rac(c, state+1+9, 0); - - for(i=e-1; i>=0; i--){ - put_rac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31 - } - - if(is_signed) - put_rac(c, state+11 + 10, v < 0); //11..21 +#define put_rac(C, S, B) \ + do { \ + if (rc_stat) { \ + rc_stat[*(S)][B]++; \ + rc_stat2[(S) - state][B]++; \ + } \ + put_rac(C, S, B); \ + } while (0) + + if (v) { + const int a = FFABS(v); + const int e = av_log2(a); + put_rac(c, state + 0, 0); + if (e <= 9) { + for (i = 0; i < e; i++) + put_rac(c, state + 1 + i, 1); // 1..10 + put_rac(c, state + 1 + i, 0); + + for (i = e - 1; i >= 0; i--) + put_rac(c, state + 22 + i, (a >> i) & 1); // 22..31 + + if (is_signed) + put_rac(c, state + 11 + e, v < 0); // 11..21 + } else { + for (i = 0; i < e; i++) + put_rac(c, state + 1 + FFMIN(i, 9), 1); // 1..10 + put_rac(c, state + 1 + 9, 0); + + for (i = e - 1; i >= 0; i--) + put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1); // 22..31 + + if (is_signed) + put_rac(c, state + 11 + 10, v < 0); // 11..21 } - }else{ - put_rac(c, state+0, 1); + } else { + put_rac(c, state + 0, 1); } #undef put_rac } -static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){ +static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, + int v, int is_signed) +{ put_symbol_inline(c, state, v, is_signed, NULL, NULL); } -static inline av_flatten int get_symbol_inline(RangeCoder *c, uint8_t *state, int is_signed){ - if(get_rac(c, state+0)) +static inline av_flatten int get_symbol_inline(RangeCoder *c, uint8_t *state, + int is_signed) +{ + if (get_rac(c, state + 0)) return 0; - else{ + else { int i, e, a; - e= 0; - while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10 + e = 0; + while (get_rac(c, state + 1 + FFMIN(e, 9))) // 1..10 e++; - } - a= 1; - for(i=e-1; i>=0; i--){ - a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31 - } + a = 1; + for (i = e - 1; i >= 0; i--) + a += a + get_rac(c, state + 22 + FFMIN(i, 9)); // 22..31 - e= -(is_signed && get_rac(c, state+11 + FFMIN(e, 10))); //11..21 - return (a^e)-e; + e = -(is_signed && get_rac(c, state + 11 + FFMIN(e, 10))); // 11..21 + return (a ^ e) - e; } } -static av_noinline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){ +static av_noinline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed) +{ return get_symbol_inline(c, state, is_signed); } -static inline void update_vlc_state(VlcState * const state, const int v){ - int drift= state->drift; - int count= state->count; +static inline void update_vlc_state(VlcState *const state, const int v) +{ + int drift = state->drift; + int count = state->count; state->error_sum += FFABS(v); - drift += v; + drift += v; - if(count == 128){ //FIXME variable - count >>= 1; - drift >>= 1; + if (count == 128) { // FIXME: variable + count >>= 1; + drift >>= 1; state->error_sum >>= 1; } count++; - if(drift <= -count){ - if(state->bias > -128) state->bias--; + if (drift <= -count) { + if (state->bias > -128) + state->bias--; drift += count; - if(drift <= -count) - drift= -count + 1; - }else if(drift > 0){ - if(state->bias < 127) state->bias++; + if (drift <= -count) + drift = -count + 1; + } else if (drift > 0) { + if (state->bias < 127) + state->bias++; drift -= count; - if(drift > 0) - drift= 0; + if (drift > 0) + drift = 0; } - state->drift= drift; - state->count= count; + state->drift = drift; + state->count = count; } -static inline void put_vlc_symbol(PutBitContext *pb, VlcState * const state, int v, int bits){ +static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state, + int v, int bits) +{ int i, k, code; v = fold(v - state->bias, bits); - i= state->count; - k=0; - while(i < state->error_sum){ //FIXME optimize + i = state->count; + k = 0; + while (i < state->error_sum) { // FIXME: optimize k++; i += i; } - assert(k<=8); + assert(k <= 8); #if 0 // JPEG LS - if(k==0 && 2*state->drift <= - state->count) code= v ^ (-1); - else code= v; + if (k == 0 && 2 * state->drift <= -state->count) + code = v ^ (-1); + else + code = v; #else - code= v ^ ((2*state->drift + state->count)>>31); + code = v ^ ((2 * state->drift + state->count) >> 31); #endif - av_dlog(NULL, "v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code, - state->bias, state->error_sum, state->drift, state->count, k); + av_dlog(NULL, "v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code, + state->bias, state->error_sum, state->drift, state->count, k); set_sr_golomb(pb, code, k, 12, bits); update_vlc_state(state, v); } -static inline int get_vlc_symbol(GetBitContext *gb, VlcState * const state, int bits){ +static inline int get_vlc_symbol(GetBitContext *gb, VlcState *const state, + int bits) +{ int k, i, v, ret; - i= state->count; - k=0; - while(i < state->error_sum){ //FIXME optimize + i = state->count; + k = 0; + while (i < state->error_sum) { // FIXME: optimize k++; i += i; } - assert(k<=8); + assert(k <= 8); - v= get_sr_golomb(gb, k, 12, bits); + v = get_sr_golomb(gb, k, 12, bits); av_dlog(NULL, "v:%d bias:%d error:%d drift:%d count:%d k:%d", v, state->bias, state->error_sum, state->drift, state->count, k); #if 0 // JPEG LS - if(k==0 && 2*state->drift <= - state->count) v ^= (-1); + if (k == 0 && 2 * state->drift <= -state->count) + v ^= (-1); #else - v ^= ((2*state->drift + state->count)>>31); + v ^= ((2 * state->drift + state->count) >> 31); #endif - ret= fold(v + state->bias, bits); + ret = fold(v + state->bias, bits); update_vlc_state(state, v); @@ -442,62 +462,65 @@ static av_always_inline int encode_line(FFV1Context *s, int w, int16_t *sample[3], int plane_index, int bits) { - PlaneContext * const p= &s->plane[plane_index]; - RangeCoder * const c= &s->c; + PlaneContext *const p = &s->plane[plane_index]; + RangeCoder *const c = &s->c; int x; - int run_index= s->run_index; - int run_count=0; - int run_mode=0; + int run_index = s->run_index; + int run_count = 0; + int run_mode = 0; - if(s->ac){ - if(c->bytestream_end - c->bytestream < w*20){ + if (s->ac) { + if (c->bytestream_end - c->bytestream < w * 20) { av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); return -1; } - }else{ - if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < w*4){ + } else { + if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) { av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); return -1; } } - for(x=0; x<w; x++){ + for (x = 0; x < w; x++) { int diff, context; - context= get_context(p, sample[0]+x, sample[1]+x, sample[2]+x); - diff= sample[0][x] - predict(sample[0]+x, sample[1]+x); + context = get_context(p, sample[0] + x, sample[1] + x, sample[2] + x); + diff = sample[0][x] - predict(sample[0] + x, sample[1] + x); - if(context < 0){ + if (context < 0) { context = -context; - diff= -diff; + diff = -diff; } - diff= fold(diff, bits); + diff = fold(diff, bits); - if(s->ac){ - if(s->flags & CODEC_FLAG_PASS1){ - put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat, s->rc_stat2[p->quant_table_index][context]); - }else{ + if (s->ac) { + if (s->flags & CODEC_FLAG_PASS1) { + put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat, + s->rc_stat2[p->quant_table_index][context]); + } else { put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL); } - }else{ - if(context == 0) run_mode=1; - - if(run_mode){ - - if(diff){ - while(run_count >= 1<<ff_log2_run[run_index]){ - run_count -= 1<<ff_log2_run[run_index]; + } else { + if (context == 0) + run_mode = 1; + + if (run_mode) { + if (diff) { + while (run_count >= 1 << ff_log2_run[run_index]) { + run_count -= 1 << ff_log2_run[run_index]; run_index++; put_bits(&s->pb, 1, 1); } put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count); - if(run_index) run_index--; - run_count=0; - run_mode=0; - if(diff>0) diff--; - }else{ + if (run_index) + run_index--; + run_count = 0; + run_mode = 0; + if (diff > 0) + diff--; + } else { run_count++; } } @@ -506,200 +529,216 @@ static av_always_inline int encode_line(FFV1Context *s, int w, run_count, run_index, run_mode, x, (int)put_bits_count(&s->pb)); - if(run_mode == 0) + if (run_mode == 0) put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits); } } - if(run_mode){ - while(run_count >= 1<<ff_log2_run[run_index]){ - run_count -= 1<<ff_log2_run[run_index]; + if (run_mode) { + while (run_count >= 1 << ff_log2_run[run_index]) { + run_count -= 1 << ff_log2_run[run_index]; run_index++; put_bits(&s->pb, 1, 1); } - if(run_count) + if (run_count) put_bits(&s->pb, 1, 1); } - s->run_index= run_index; + s->run_index = run_index; return 0; } -static void encode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){ - int x,y,i; - const int ring_size= s->avctx->context_model ? 3 : 2; +static void encode_plane(FFV1Context *s, uint8_t *src, int w, int h, + int stride, int plane_index) +{ + int x, y, i; + const int ring_size = s->avctx->context_model ? 3 : 2; int16_t *sample[3]; - s->run_index=0; + s->run_index = 0; - memset(s->sample_buffer, 0, ring_size*(w+6)*sizeof(*s->sample_buffer)); + memset(s->sample_buffer, 0, ring_size * (w + 6) * sizeof(*s->sample_buffer)); - for(y=0; y<h; y++){ - for(i=0; i<ring_size; i++) - sample[i]= s->sample_buffer + (w+6)*((h+i-y)%ring_size) + 3; + for (y = 0; y < h; y++) { + for (i = 0; i < ring_size; i++) + sample[i] = s->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3; - sample[0][-1]= sample[1][0 ]; - sample[1][ w]= sample[1][w-1]; -//{START_TIMER - if(s->avctx->bits_per_raw_sample<=8){ - for(x=0; x<w; x++){ - sample[0][x]= src[x + stride*y]; - } + sample[0][-1] = sample[1][0]; + sample[1][w] = sample[1][w - 1]; +// { START_TIMER + if (s->avctx->bits_per_raw_sample <= 8) { + for (x = 0; x < w; x++) + sample[0][x] = src[x + stride * y]; encode_line(s, w, sample, plane_index, 8); - }else{ - for(x=0; x<w; x++){ - sample[0][x]= ((uint16_t*)(src + stride*y))[x] >> (16 - s->avctx->bits_per_raw_sample); - } + } else { + for (x = 0; x < w; x++) + sample[0][x] = ((uint16_t *)(src + stride * y))[x] >> + (16 - s->avctx->bits_per_raw_sample); encode_line(s, w, sample, plane_index, s->avctx->bits_per_raw_sample); } -//STOP_TIMER("encode line")} +// STOP_TIMER("encode line") } } } -static void encode_rgb_frame(FFV1Context *s, uint32_t *src, int w, int h, int stride){ +static void encode_rgb_frame(FFV1Context *s, uint32_t *src, int w, int h, + int stride) +{ int x, y, p, i; - const int ring_size= s->avctx->context_model ? 3 : 2; + const int ring_size = s->avctx->context_model ? 3 : 2; int16_t *sample[3][3]; - s->run_index=0; + s->run_index = 0; - memset(s->sample_buffer, 0, ring_size*3*(w+6)*sizeof(*s->sample_buffer)); + memset(s->sample_buffer, 0, ring_size * 3 * (w + 6) * sizeof(*s->sample_buffer)); - for(y=0; y<h; y++){ - for(i=0; i<ring_size; i++) - for(p=0; p<3; p++) - sample[p][i]= s->sample_buffer + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3; + for (y = 0; y < h; y++) { + for (i = 0; i < ring_size; i++) + for (p = 0; p < 3; p++) + sample[p][i] = s->sample_buffer + p * ring_size * (w + 6) + + ((h + i - y) % ring_size) * (w + 6) + 3; - for(x=0; x<w; x++){ - int v= src[x + stride*y]; - int b= v&0xFF; - int g= (v>>8)&0xFF; - int r= (v>>16)&0xFF; + for (x = 0; x < w; x++) { + int v = src[x + stride * y]; + int b = v & 0xFF; + int g = (v >> 8) & 0xFF; + int r = (v >> 16) & 0xFF; b -= g; r -= g; - g += (b + r)>>2; + g += (b + r) >> 2; b += 0x100; r += 0x100; -// assert(g>=0 && b>=0 && r>=0); -// assert(g<256 && b<512 && r<512); - sample[0][0][x]= g; - sample[1][0][x]= b; - sample[2][0][x]= r; + sample[0][0][x] = g; + sample[1][0][x] = b; + sample[2][0][x] = r; } - for(p=0; p<3; p++){ - sample[p][0][-1]= sample[p][1][0 ]; - sample[p][1][ w]= sample[p][1][w-1]; + for (p = 0; p < 3; p++) { + sample[p][0][-1] = sample[p][1][0]; + sample[p][1][w] = sample[p][1][w - 1]; encode_line(s, w, sample[p], FFMIN(p, 1), 9); } } } -static void write_quant_table(RangeCoder *c, int16_t *quant_table){ - int last=0; +static void write_quant_table(RangeCoder *c, int16_t *quant_table) +{ + int last = 0; int i; uint8_t state[CONTEXT_SIZE]; memset(state, 128, sizeof(state)); - for(i=1; i<128 ; i++){ - if(quant_table[i] != quant_table[i-1]){ - put_symbol(c, state, i-last-1, 0); - last= i; + for (i = 1; i < 128; i++) + if (quant_table[i] != quant_table[i - 1]) { + put_symbol(c, state, i - last - 1, 0); + last = i; } - } - put_symbol(c, state, i-last-1, 0); + put_symbol(c, state, i - last - 1, 0); } -static void write_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){ +static void write_quant_tables(RangeCoder *c, + int16_t quant_table[MAX_CONTEXT_INPUTS][256]) +{ int i; - for(i=0; i<5; i++) + for (i = 0; i < 5; i++) write_quant_table(c, quant_table[i]); } -static void write_header(FFV1Context *f){ +static void write_header(FFV1Context *f) +{ uint8_t state[CONTEXT_SIZE]; int i, j; - RangeCoder * const c= &f->slice_context[0]->c; + RangeCoder *const c = &f->slice_context[0]->c; memset(state, 128, sizeof(state)); - if(f->version < 2){ + if (f->version < 2) { put_symbol(c, state, f->version, 0); put_symbol(c, state, f->ac, 0); - if(f->ac>1){ - for(i=1; i<256; i++){ - put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1); - } + if (f->ac > 1) { + for (i = 1; i < 256; i++) + put_symbol(c, state, + f->state_transition[i] - c->one_state[i], 1); } - put_symbol(c, state, f->colorspace, 0); //YUV cs type - if(f->version>0) + put_symbol(c, state, f->colorspace, 0); // YUV cs type + if (f->version > 0) put_symbol(c, state, f->avctx->bits_per_raw_sample, 0); - put_rac(c, state, 1); //chroma planes - put_symbol(c, state, f->chroma_h_shift, 0); - put_symbol(c, state, f->chroma_v_shift, 0); - put_rac(c, state, 0); //no transparency plane + put_rac(c, state, 1); // chroma planes + put_symbol(c, state, f->chroma_h_shift, 0); + put_symbol(c, state, f->chroma_v_shift, 0); + put_rac(c, state, 0); // no transparency plane write_quant_tables(c, f->quant_table); - }else{ + } else { put_symbol(c, state, f->slice_count, 0); - for(i=0; i<f->slice_count; i++){ - FFV1Context *fs= f->slice_context[i]; - put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0); - put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0); - put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0); - put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0); - for(j=0; j<f->plane_count; j++){ + for (i = 0; i < f->slice_count; i++) { + FFV1Context *fs = f->slice_context[i]; + put_symbol(c, state, + (fs->slice_x + 1) * f->num_h_slices / f->width, 0); + put_symbol(c, state, + (fs->slice_y + 1) * f->num_v_slices / f->height, 0); + put_symbol(c, state, + (fs->slice_width + 1) * f->num_h_slices / f->width - 1, + 0); + put_symbol(c, state, + (fs->slice_height + 1) * f->num_v_slices / f->height - 1, + 0); + for (j = 0; j < f->plane_count; j++) { put_symbol(c, state, f->plane[j].quant_table_index, 0); av_assert0(f->plane[j].quant_table_index == f->avctx->context_model); } } } } + #endif /* CONFIG_FFV1_ENCODER */ -static av_cold int common_init(AVCodecContext *avctx){ +static av_cold int common_init(AVCodecContext *avctx) +{ FFV1Context *s = avctx->priv_data; - s->avctx= avctx; - s->flags= avctx->flags; + s->avctx = avctx; + s->flags = avctx->flags; ff_dsputil_init(&s->dsp, avctx); - s->width = avctx->width; - s->height= avctx->height; + s->width = avctx->width; + s->height = avctx->height; assert(s->width && s->height); - //defaults - s->num_h_slices=1; - s->num_v_slices=1; - + // defaults + s->num_h_slices = 1; + s->num_v_slices = 1; return 0; } -static int init_slice_state(FFV1Context *f){ +static int init_slice_state(FFV1Context *f) +{ int i, j; - for(i=0; i<f->slice_count; i++){ - FFV1Context *fs= f->slice_context[i]; - for(j=0; j<f->plane_count; j++){ - PlaneContext * const p= &fs->plane[j]; + for (i = 0; i < f->slice_count; i++) { + FFV1Context *fs = f->slice_context[i]; + for (j = 0; j < f->plane_count; j++) { + PlaneContext *const p = &fs->plane[j]; - if(fs->ac){ - if(!p-> state) p-> state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t)); - if(!p-> state) + if (fs->ac) { + if (!p->state) + p->state = av_malloc(CONTEXT_SIZE * p->context_count * + sizeof(uint8_t)); + if (!p->state) return AVERROR(ENOMEM); - }else{ - if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState)); - if(!p->vlc_state) + } else { + if (!p->vlc_state) + p->vlc_state = av_malloc(p->context_count * sizeof(VlcState)); + if (!p->vlc_state) return AVERROR(ENOMEM); } } - if (fs->ac>1){ - //FIXME only redo if state_transition changed - for(j=1; j<256; j++){ - fs->c.one_state [ j]= fs->state_transition[j]; - fs->c.zero_state[256-j]= 256-fs->c.one_state [j]; + if (fs->ac > 1) { + // FIXME: only redo if state_transition changed + for (j = 1; j < 256; j++) { + fs->c.one_state[j] = fs->state_transition[j]; + fs->c.zero_state[256 - j] = 256 - fs->c.one_state[j]; } } } @@ -707,50 +746,56 @@ static int init_slice_state(FFV1Context *f){ return 0; } -static av_cold int init_slice_contexts(FFV1Context *f){ +static av_cold int init_slice_contexts(FFV1Context *f) +{ int i; - f->slice_count= f->num_h_slices * f->num_v_slices; - - for(i=0; i<f->slice_count; i++){ - FFV1Context *fs= av_mallocz(sizeof(*fs)); - int sx= i % f->num_h_slices; - int sy= i / f->num_h_slices; - int sxs= f->avctx->width * sx / f->num_h_slices; - int sxe= f->avctx->width *(sx+1) / f->num_h_slices; - int sys= f->avctx->height* sy / f->num_v_slices; - int sye= f->avctx->height*(sy+1) / f->num_v_slices; - f->slice_context[i]= fs; + f->slice_count = f->num_h_slices * f->num_v_slices; + + for (i = 0; i < f->slice_count; i++) { + FFV1Context *fs = av_mallocz(sizeof(*fs)); + int sx = i % f->num_h_slices; + int sy = i / f->num_h_slices; + int sxs = f->avctx->width * sx / f->num_h_slices; + int sxe = f->avctx->width * (sx + 1) / f->num_h_slices; + int sys = f->avctx->height * sy / f->num_v_slices; + int sye = f->avctx->height * (sy + 1) / f->num_v_slices; + f->slice_context[i] = fs; memcpy(fs, f, sizeof(*fs)); memset(fs->rc_stat2, 0, sizeof(fs->rc_stat2)); - fs->slice_width = sxe - sxs; - fs->slice_height= sye - sys; - fs->slice_x = sxs; - fs->slice_y = sys; + fs->slice_width = sxe - sxs; + fs->slice_height = sye - sys; + fs->slice_x = sxs; + fs->slice_y = sys; - fs->sample_buffer = av_malloc(9 * (fs->width+6) * sizeof(*fs->sample_buffer)); + fs->sample_buffer = av_malloc(9 * (fs->width + 6) * + sizeof(*fs->sample_buffer)); if (!fs->sample_buffer) return AVERROR(ENOMEM); } return 0; } -static int allocate_initial_states(FFV1Context *f){ +static int allocate_initial_states(FFV1Context *f) +{ int i; - for(i=0; i<f->quant_table_count; i++){ - f->initial_states[i]= av_malloc(f->context_count[i]*sizeof(*f->initial_states[i])); - if(!f->initial_states[i]) + for (i = 0; i < f->quant_table_count; i++) { + f->initial_states[i] = av_malloc(f->context_count[i] * + sizeof(*f->initial_states[i])); + if (!f->initial_states[i]) return AVERROR(ENOMEM); - memset(f->initial_states[i], 128, f->context_count[i]*sizeof(*f->initial_states[i])); + memset(f->initial_states[i], 128, + f->context_count[i] * sizeof(*f->initial_states[i])); } return 0; } #if CONFIG_FFV1_ENCODER -static int write_extra_header(FFV1Context *f){ - RangeCoder * const c= &f->c; +static int write_extra_header(FFV1Context *f) +{ + RangeCoder *const c = &f->c; uint8_t state[CONTEXT_SIZE]; int i, j, k; uint8_t state2[32][CONTEXT_SIZE]; @@ -758,92 +803,96 @@ static int write_extra_header(FFV1Context *f){ memset(state2, 128, sizeof(state2)); memset(state, 128, sizeof(state)); - f->avctx->extradata= av_malloc(f->avctx->extradata_size= 10000 + (11*11*5*5*5+11*11*11)*32); + f->avctx->extradata = av_malloc(f->avctx->extradata_size = 10000 + + (11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32); ff_init_range_encoder(c, f->avctx->extradata, f->avctx->extradata_size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); + ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); put_symbol(c, state, f->version, 0); put_symbol(c, state, f->ac, 0); - if(f->ac>1){ - for(i=1; i<256; i++){ + if (f->ac > 1) + for (i = 1; i < 256; i++) put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1); - } - } - put_symbol(c, state, f->colorspace, 0); //YUV cs type + put_symbol(c, state, f->colorspace, 0); // YUV cs type put_symbol(c, state, f->avctx->bits_per_raw_sample, 0); - put_rac(c, state, 1); //chroma planes - put_symbol(c, state, f->chroma_h_shift, 0); - put_symbol(c, state, f->chroma_v_shift, 0); - put_rac(c, state, 0); //no transparency plane - put_symbol(c, state, f->num_h_slices-1, 0); - put_symbol(c, state, f->num_v_slices-1, 0); + put_rac(c, state, 1); // chroma planes + put_symbol(c, state, f->chroma_h_shift, 0); + put_symbol(c, state, f->chroma_v_shift, 0); + put_rac(c, state, 0); // no transparency plane + put_symbol(c, state, f->num_h_slices - 1, 0); + put_symbol(c, state, f->num_v_slices - 1, 0); put_symbol(c, state, f->quant_table_count, 0); - for(i=0; i<f->quant_table_count; i++) + for (i = 0; i < f->quant_table_count; i++) write_quant_tables(c, f->quant_tables[i]); - for(i=0; i<f->quant_table_count; i++){ - for(j=0; j<f->context_count[i]*CONTEXT_SIZE; j++) - if(f->initial_states[i] && f->initial_states[i][0][j] != 128) + for (i = 0; i < f->quant_table_count; i++) { + for (j = 0; j < f->context_count[i] * CONTEXT_SIZE; j++) + if (f->initial_states[i] && f->initial_states[i][0][j] != 128) break; - if(j<f->context_count[i]*CONTEXT_SIZE){ + if (j < f->context_count[i] * CONTEXT_SIZE) { put_rac(c, state, 1); - for(j=0; j<f->context_count[i]; j++){ - for(k=0; k<CONTEXT_SIZE; k++){ - int pred= j ? f->initial_states[i][j-1][k] : 128; - put_symbol(c, state2[k], (int8_t)(f->initial_states[i][j][k]-pred), 1); + for (j = 0; j < f->context_count[i]; j++) + for (k = 0; k < CONTEXT_SIZE; k++) { + int pred = j ? f->initial_states[i][j - 1][k] : 128; + put_symbol(c, state2[k], + (int8_t)(f->initial_states[i][j][k] - pred), 1); } - } - }else{ + } else { put_rac(c, state, 0); } } - f->avctx->extradata_size= ff_rac_terminate(c); + f->avctx->extradata_size = ff_rac_terminate(c); return 0; } -static int sort_stt(FFV1Context *s, uint8_t stt[256]){ - int i,i2,changed,print=0; +static int sort_stt(FFV1Context *s, uint8_t stt[256]) +{ + int i, i2, changed, print = 0; + + do { + changed = 0; + for (i = 12; i < 244; i++) { + for (i2 = i + 1; i2 < 245 && i2 < i + 4; i2++) { - do{ - changed=0; - for(i=12; i<244; i++){ - for(i2=i+1; i2<245 && i2<i+4; i2++){ -#define COST(old, new) \ - s->rc_stat[old][0]*-log2((256-(new))/256.0)\ - +s->rc_stat[old][1]*-log2( (new) /256.0) +#define COST(old, new) \ + s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \ + s->rc_stat[old][1] * -log2((new) / 256.0) -#define COST2(old, new) \ - COST(old, new)\ - +COST(256-(old), 256-(new)) +#define COST2(old, new) \ + COST(old, new) + COST(256 - (old), 256 - (new)) - double size0= COST2(i, i ) + COST2(i2, i2); - double sizeX= COST2(i, i2) + COST2(i2, i ); - if(sizeX < size0 && i!=128 && i2!=128){ + double size0 = COST2(i, i) + COST2(i2, i2); + double sizeX = COST2(i, i2) + COST2(i2, i); + if (sizeX < size0 && i != 128 && i2 != 128) { int j; - FFSWAP(int, stt[ i], stt[ i2]); - FFSWAP(int, s->rc_stat[i ][0],s->rc_stat[ i2][0]); - FFSWAP(int, s->rc_stat[i ][1],s->rc_stat[ i2][1]); - if(i != 256-i2){ - FFSWAP(int, stt[256-i], stt[256-i2]); - FFSWAP(int, s->rc_stat[256-i][0],s->rc_stat[256-i2][0]); - FFSWAP(int, s->rc_stat[256-i][1],s->rc_stat[256-i2][1]); + FFSWAP(int, stt[i], stt[i2]); + FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]); + FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]); + if (i != 256 - i2) { + FFSWAP(int, stt[256 - i], stt[256 - i2]); + FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]); + FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]); } - for(j=1; j<256; j++){ - if (stt[j] == i ) stt[j] = i2; - else if(stt[j] == i2) stt[j] = i ; - if(i != 256-i2){ - if (stt[256-j] == 256-i ) stt[256-j] = 256-i2; - else if(stt[256-j] == 256-i2) stt[256-j] = 256-i ; + for (j = 1; j < 256; j++) { + if (stt[j] == i) + stt[j] = i2; + else if (stt[j] == i2) + stt[j] = i; + if (i != 256 - i2) { + if (stt[256 - j] == 256 - i) + stt[256 - j] = 256 - i2; + else if (stt[256 - j] == 256 - i2) + stt[256 - j] = 256 - i; } } - print=changed=1; + print = changed = 1; } } } - }while(changed); + } while (changed); return print; } @@ -854,229 +903,246 @@ static av_cold int encode_init(AVCodecContext *avctx) common_init(avctx); - s->version=0; - s->ac= avctx->coder_type ? 2:0; - - if(s->ac>1) - for(i=1; i<256; i++) - s->state_transition[i]=ver2_state[i]; - - s->plane_count=2; - for(i=0; i<256; i++){ - s->quant_table_count=2; - if(avctx->bits_per_raw_sample <=8){ - s->quant_tables[0][0][i]= quant11[i]; - s->quant_tables[0][1][i]= 11*quant11[i]; - s->quant_tables[0][2][i]= 11*11*quant11[i]; - s->quant_tables[1][0][i]= quant11[i]; - s->quant_tables[1][1][i]= 11*quant11[i]; - s->quant_tables[1][2][i]= 11*11*quant5 [i]; - s->quant_tables[1][3][i]= 5*11*11*quant5 [i]; - s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i]; - }else{ - s->quant_tables[0][0][i]= quant9_10bit[i]; - s->quant_tables[0][1][i]= 11*quant9_10bit[i]; - s->quant_tables[0][2][i]= 11*11*quant9_10bit[i]; - s->quant_tables[1][0][i]= quant9_10bit[i]; - s->quant_tables[1][1][i]= 11*quant9_10bit[i]; - s->quant_tables[1][2][i]= 11*11*quant5_10bit[i]; - s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i]; - s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i]; + s->version = 0; + s->ac = avctx->coder_type ? 2 : 0; + + if (s->ac > 1) + for (i = 1; i < 256; i++) + s->state_transition[i] = ver2_state[i]; + + s->plane_count = 2; + for (i = 0; i < 256; i++) { + s->quant_table_count = 2; + if (avctx->bits_per_raw_sample <= 8) { + s->quant_tables[0][0][i] = quant11[i]; + s->quant_tables[0][1][i] = quant11[i] * 11; + s->quant_tables[0][2][i] = quant11[i] * 11 * 11; + s->quant_tables[1][0][i] = quant11[i]; + s->quant_tables[1][1][i] = quant11[i] * 11; + s->quant_tables[1][2][i] = quant5[i] * 11 * 11; + s->quant_tables[1][3][i] = quant5[i] * 5 * 11 * 11; + s->quant_tables[1][4][i] = quant5[i] * 5 * 5 * 11 * 11; + } else { + s->quant_tables[0][0][i] = quant9_10bit[i]; + s->quant_tables[0][1][i] = quant9_10bit[i] * 11; + s->quant_tables[0][2][i] = quant9_10bit[i] * 11 * 11; + s->quant_tables[1][0][i] = quant9_10bit[i]; + s->quant_tables[1][1][i] = quant9_10bit[i] * 11; + s->quant_tables[1][2][i] = quant5_10bit[i] * 11 * 11; + s->quant_tables[1][3][i] = quant5_10bit[i] * 5 * 11 * 11; + s->quant_tables[1][4][i] = quant5_10bit[i] * 5 * 5 * 11 * 11; } } - s->context_count[0]= (11*11*11+1)/2; - s->context_count[1]= (11*11*5*5*5+1)/2; - memcpy(s->quant_table, s->quant_tables[avctx->context_model], sizeof(s->quant_table)); + s->context_count[0] = (11 * 11 * 11 + 1) / 2; + s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2; + memcpy(s->quant_table, s->quant_tables[avctx->context_model], + sizeof(s->quant_table)); - for(i=0; i<s->plane_count; i++){ - PlaneContext * const p= &s->plane[i]; + for (i = 0; i < s->plane_count; i++) { + PlaneContext *const p = &s->plane[i]; memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table)); - p->quant_table_index= avctx->context_model; - p->context_count= s->context_count[p->quant_table_index]; + p->quant_table_index = avctx->context_model; + p->context_count = s->context_count[p->quant_table_index]; } - if(allocate_initial_states(s) < 0) + if (allocate_initial_states(s) < 0) return AVERROR(ENOMEM); - avctx->coded_frame= &s->picture; - switch(avctx->pix_fmt){ + avctx->coded_frame = &s->picture; + switch (avctx->pix_fmt) { case AV_PIX_FMT_YUV444P16: case AV_PIX_FMT_YUV422P16: case AV_PIX_FMT_YUV420P16: - if(avctx->bits_per_raw_sample <=8){ + if (avctx->bits_per_raw_sample <= 8) { av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n"); return -1; } - if(!s->ac){ - av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n"); + if (!s->ac) { + av_log(avctx, AV_LOG_ERROR, + "bits_per_raw_sample of more than 8 needs -coder 1 currently\n"); return -1; } - s->version= FFMAX(s->version, 1); + s->version = FFMAX(s->version, 1); case AV_PIX_FMT_YUV444P: case AV_PIX_FMT_YUV422P: case AV_PIX_FMT_YUV420P: case AV_PIX_FMT_YUV411P: case AV_PIX_FMT_YUV410P: - s->colorspace= 0; + s->colorspace = 0; break; case AV_PIX_FMT_RGB32: - s->colorspace= 1; + s->colorspace = 1; break; default: av_log(avctx, AV_LOG_ERROR, "format not supported\n"); return -1; } - avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); + avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, + &s->chroma_v_shift); - s->picture_number=0; + s->picture_number = 0; - if(avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)){ - for(i=0; i<s->quant_table_count; i++){ - s->rc_stat2[i]= av_mallocz(s->context_count[i]*sizeof(*s->rc_stat2[i])); - if(!s->rc_stat2[i]) + if (avctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) { + for (i = 0; i < s->quant_table_count; i++) { + s->rc_stat2[i] = av_mallocz(s->context_count[i] * + sizeof(*s->rc_stat2[i])); + if (!s->rc_stat2[i]) return AVERROR(ENOMEM); } } - if(avctx->stats_in){ - char *p= avctx->stats_in; + if (avctx->stats_in) { + char *p = avctx->stats_in; uint8_t best_state[256][256]; - int gob_count=0; + int gob_count = 0; char *next; - av_assert0(s->version>=2); + av_assert0(s->version >= 2); - for(;;){ - for(j=0; j<256; j++){ - for(i=0; i<2; i++){ - s->rc_stat[j][i]= strtol(p, &next, 0); - if(next==p){ - av_log(avctx, AV_LOG_ERROR, "2Pass file invalid at %d %d [%s]\n", j,i,p); + for (;; ) { + for (j = 0; j < 256; j++) + for (i = 0; i < 2; i++) { + s->rc_stat[j][i] = strtol(p, &next, 0); + if (next == p) { + av_log(avctx, AV_LOG_ERROR, + "2Pass file invalid at %d %d [%s]\n", j, i, p); return -1; } - p=next; + p = next; } - } - for(i=0; i<s->quant_table_count; i++){ - for(j=0; j<s->context_count[i]; j++){ - for(k=0; k<32; k++){ - for(m=0; m<2; m++){ - s->rc_stat2[i][j][k][m]= strtol(p, &next, 0); - if(next==p){ - av_log(avctx, AV_LOG_ERROR, "2Pass file invalid at %d %d %d %d [%s]\n", i,j,k,m,p); + for (i = 0; i < s->quant_table_count; i++) + for (j = 0; j < s->context_count[i]; j++) { + for (k = 0; k < 32; k++) + for (m = 0; m < 2; m++) { + s->rc_stat2[i][j][k][m] = strtol(p, &next, 0); + if (next == p) { + av_log(avctx, AV_LOG_ERROR, + "2Pass file invalid at %d %d %d %d [%s]\n", + i, j, k, m, p); return -1; } - p=next; + p = next; } - } } - } - gob_count= strtol(p, &next, 0); - if(next==p || gob_count <0){ + gob_count = strtol(p, &next, 0); + if (next == p || gob_count < 0) { av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n"); return -1; } - p=next; - while(*p=='\n' || *p==' ') p++; - if(p[0]==0) break; + p = next; + while (*p == '\n' || *p == ' ') + p++; + if (p[0] == 0) + break; } sort_stt(s, s->state_transition); find_best_state(best_state, s->state_transition); - for(i=0; i<s->quant_table_count; i++){ - for(j=0; j<s->context_count[i]; j++){ - for(k=0; k<32; k++){ - double p= 128; - if(s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1]){ - p=256.0*s->rc_stat2[i][j][k][1] / (s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1]); + for (i = 0; i < s->quant_table_count; i++) { + for (j = 0; j < s->context_count[i]; j++) + for (k = 0; k < 32; k++) { + double p = 128; + if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1]) { + p = 256.0 * s->rc_stat2[i][j][k][1] / + (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1]); } - s->initial_states[i][j][k]= best_state[av_clip(round(p), 1, 255)][av_clip((s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1])/gob_count, 0, 255)]; + s->initial_states[i][j][k] = + best_state[av_clip(round(p), 1, 255)][av_clip((s->rc_stat2[i][j][k][0] + + s->rc_stat2[i][j][k][1]) / + gob_count, 0, 255)]; } - } } } - if(s->version>1){ - s->num_h_slices=2; - s->num_v_slices=2; + if (s->version > 1) { + s->num_h_slices = 2; + s->num_v_slices = 2; write_extra_header(s); } - if(init_slice_contexts(s) < 0) + if (init_slice_contexts(s) < 0) return -1; - if(init_slice_state(s) < 0) + if (init_slice_state(s) < 0) return -1; -#define STATS_OUT_SIZE 1024*1024*6 - if(avctx->flags & CODEC_FLAG_PASS1){ - avctx->stats_out= av_mallocz(STATS_OUT_SIZE); - for(i=0; i<s->quant_table_count; i++){ - for(j=0; j<s->slice_count; j++){ - FFV1Context *sf= s->slice_context[j]; +#define STATS_OUT_SIZE 1024 * 1024 * 6 + if (avctx->flags & CODEC_FLAG_PASS1) { + avctx->stats_out = av_mallocz(STATS_OUT_SIZE); + for (i = 0; i < s->quant_table_count; i++) + for (j = 0; j < s->slice_count; j++) { + FFV1Context *sf = s->slice_context[j]; av_assert0(!sf->rc_stat2[i]); - sf->rc_stat2[i]= av_mallocz(s->context_count[i]*sizeof(*sf->rc_stat2[i])); - if(!sf->rc_stat2[i]) + sf->rc_stat2[i] = av_mallocz(s->context_count[i] * + sizeof(*sf->rc_stat2[i])); + if (!sf->rc_stat2[i]) return AVERROR(ENOMEM); } - } } return 0; } -#endif /* CONFIG_FFV1_ENCODER */ +#endif /* CONFIG_FFV1_ENCODER */ -static void clear_state(FFV1Context *f){ +static void clear_state(FFV1Context *f) +{ int i, si, j; - for(si=0; si<f->slice_count; si++){ - FFV1Context *fs= f->slice_context[si]; - for(i=0; i<f->plane_count; i++){ - PlaneContext *p= &fs->plane[i]; - - p->interlace_bit_state[0]= 128; - p->interlace_bit_state[1]= 128; - - if(fs->ac){ - if(f->initial_states[p->quant_table_index]){ - memcpy(p->state, f->initial_states[p->quant_table_index], CONTEXT_SIZE*p->context_count); - }else - memset(p->state, 128, CONTEXT_SIZE*p->context_count); - }else{ - for(j=0; j<p->context_count; j++){ - p->vlc_state[j].drift= 0; - p->vlc_state[j].error_sum= 4; //FFMAX((RANGE + 32)/64, 2); - p->vlc_state[j].bias= 0; - p->vlc_state[j].count= 1; - } + for (si = 0; si < f->slice_count; si++) { + FFV1Context *fs = f->slice_context[si]; + for (i = 0; i < f->plane_count; i++) { + PlaneContext *p = &fs->plane[i]; + + p->interlace_bit_state[0] = 128; + p->interlace_bit_state[1] = 128; + + if (fs->ac) { + if (f->initial_states[p->quant_table_index]) { + memcpy(p->state, f->initial_states[p->quant_table_index], + CONTEXT_SIZE * p->context_count); + } else + memset(p->state, 128, CONTEXT_SIZE * p->context_count); + } else { + for (j = 0; j < p->context_count; j++) { + p->vlc_state[j].drift = 0; + p->vlc_state[j].error_sum = 4; // FFMAX((RANGE + 32)/64, 2); + p->vlc_state[j].bias = 0; + p->vlc_state[j].count = 1; + } } } } } #if CONFIG_FFV1_ENCODER -static int encode_slice(AVCodecContext *c, void *arg){ - FFV1Context *fs= *(void**)arg; - FFV1Context *f= fs->avctx->priv_data; - int width = fs->slice_width; - int height= fs->slice_height; - int x= fs->slice_x; - int y= fs->slice_y; - AVFrame * const p= &f->picture; - - if(f->colorspace==0){ - const int chroma_width = -((-width )>>f->chroma_h_shift); - const int chroma_height= -((-height)>>f->chroma_v_shift); - const int cx= x>>f->chroma_h_shift; - const int cy= y>>f->chroma_v_shift; - - encode_plane(fs, p->data[0] + x + y*p->linesize[0], width, height, p->linesize[0], 0); - - encode_plane(fs, p->data[1] + cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1); - encode_plane(fs, p->data[2] + cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1); - }else{ - encode_rgb_frame(fs, (uint32_t*)(p->data[0]) + x + y*(p->linesize[0]/4), width, height, p->linesize[0]/4); +static int encode_slice(AVCodecContext *c, void *arg) +{ + FFV1Context *fs = *(void **)arg; + FFV1Context *f = fs->avctx->priv_data; + int width = fs->slice_width; + int height = fs->slice_height; + int x = fs->slice_x; + int y = fs->slice_y; + AVFrame *const p = &f->picture; + + if (f->colorspace == 0) { + const int chroma_width = -((-width) >> f->chroma_h_shift); + const int chroma_height = -((-height) >> f->chroma_v_shift); + const int cx = x >> f->chroma_h_shift; + const int cy = y >> f->chroma_v_shift; + + encode_plane(fs, p->data[0] + x + y * p->linesize[0], + width, height, p->linesize[0], 0); + + encode_plane(fs, p->data[1] + cx + cy * p->linesize[1], + chroma_width, chroma_height, p->linesize[1], 1); + encode_plane(fs, p->data[2] + cx + cy * p->linesize[2], + chroma_width, chroma_height, p->linesize[2], 1); + } else { + encode_rgb_frame(fs, (uint32_t *)(p->data[0]) + + x + y * (p->linesize[0] / 4), + width, height, p->linesize[0] / 4); } emms_c(); @@ -1086,149 +1152,152 @@ static int encode_slice(AVCodecContext *c, void *arg){ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet) { - FFV1Context *f = avctx->priv_data; - RangeCoder * const c= &f->slice_context[0]->c; - AVFrame * const p= &f->picture; - int used_count= 0; - uint8_t keystate=128; + FFV1Context *f = avctx->priv_data; + RangeCoder *const c = &f->slice_context[0]->c; + AVFrame *const p = &f->picture; + int used_count = 0; + uint8_t keystate = 128; uint8_t *buf_p; int i, ret; if (!pkt->data && - (ret = av_new_packet(pkt, avctx->width*avctx->height*((8*2+1+1)*4)/8 - + FF_MIN_BUFFER_SIZE)) < 0) { + (ret = av_new_packet(pkt, avctx->width * avctx->height * + ((8 * 2 + 1 + 1) * 4) / 8 + FF_MIN_BUFFER_SIZE)) < 0) { av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n"); return ret; } ff_init_range_encoder(c, pkt->data, pkt->size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); + ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); - *p = *pict; - p->pict_type= AV_PICTURE_TYPE_I; + *p = *pict; + p->pict_type = AV_PICTURE_TYPE_I; - if(avctx->gop_size==0 || f->picture_number % avctx->gop_size == 0){ + if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) { put_rac(c, &keystate, 1); - p->key_frame= 1; + p->key_frame = 1; f->gob_count++; write_header(f); clear_state(f); - }else{ + } else { put_rac(c, &keystate, 0); - p->key_frame= 0; + p->key_frame = 0; } - if(!f->ac){ + if (!f->ac) { used_count += ff_rac_terminate(c); - init_put_bits(&f->slice_context[0]->pb, pkt->data + used_count, pkt->size - used_count); - }else if (f->ac>1){ + init_put_bits(&f->slice_context[0]->pb, pkt->data + used_count, + pkt->size - used_count); + } else if (f->ac > 1) { int i; - for(i=1; i<256; i++){ - c->one_state[i]= f->state_transition[i]; - c->zero_state[256-i]= 256-c->one_state[i]; + for (i = 1; i < 256; i++) { + c->one_state[i] = f->state_transition[i]; + c->zero_state[256 - i] = 256 - c->one_state[i]; } } - for(i=1; i<f->slice_count; i++){ - FFV1Context *fs= f->slice_context[i]; - uint8_t *start = pkt->data + (pkt->size-used_count)*i/f->slice_count; - int len = pkt->size/f->slice_count; + for (i = 1; i < f->slice_count; i++) { + FFV1Context *fs = f->slice_context[i]; + uint8_t *start = pkt->data + (pkt->size - used_count) * i / f->slice_count; + int len = pkt->size / f->slice_count; - if(fs->ac){ + if (fs->ac) ff_init_range_encoder(&fs->c, start, len); - }else{ + else init_put_bits(&fs->pb, start, len); - } } - avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*)); + avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, + f->slice_count, sizeof(void *)); buf_p = pkt->data; - for(i=0; i<f->slice_count; i++){ - FFV1Context *fs= f->slice_context[i]; + for (i = 0; i < f->slice_count; i++) { + FFV1Context *fs = f->slice_context[i]; int bytes; - if(fs->ac){ - uint8_t state=128; + if (fs->ac) { + uint8_t state = 128; put_rac(&fs->c, &state, 0); - bytes= ff_rac_terminate(&fs->c); - }else{ - flush_put_bits(&fs->pb); //nicer padding FIXME - bytes= used_count + (put_bits_count(&fs->pb)+7)/8; - used_count= 0; + bytes = ff_rac_terminate(&fs->c); + } else { + flush_put_bits(&fs->pb); // FIXME: nicer padding + bytes = used_count + (put_bits_count(&fs->pb) + 7) / 8; + used_count = 0; } - if(i>0){ - av_assert0(bytes < pkt->size/f->slice_count); + if (i > 0) { + av_assert0(bytes < pkt->size / f->slice_count); memmove(buf_p, fs->ac ? fs->c.bytestream_start : fs->pb.buf, bytes); - av_assert0(bytes < (1<<24)); - AV_WB24(buf_p+bytes, bytes); - bytes+=3; + av_assert0(bytes < (1 << 24)); + AV_WB24(buf_p + bytes, bytes); + bytes += 3; } buf_p += bytes; } - if((avctx->flags&CODEC_FLAG_PASS1) && (f->picture_number&31)==0){ + if ((avctx->flags & CODEC_FLAG_PASS1) && (f->picture_number & 31) == 0) { int j, k, m; - char *p= avctx->stats_out; - char *end= p + STATS_OUT_SIZE; + char *p = avctx->stats_out; + char *end = p + STATS_OUT_SIZE; memset(f->rc_stat, 0, sizeof(f->rc_stat)); - for(i=0; i<f->quant_table_count; i++) - memset(f->rc_stat2[i], 0, f->context_count[i]*sizeof(*f->rc_stat2[i])); + for (i = 0; i < f->quant_table_count; i++) + memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i])); - for(j=0; j<f->slice_count; j++){ - FFV1Context *fs= f->slice_context[j]; - for(i=0; i<256; i++){ + for (j = 0; j < f->slice_count; j++) { + FFV1Context *fs = f->slice_context[j]; + for (i = 0; i < 256; i++) { f->rc_stat[i][0] += fs->rc_stat[i][0]; f->rc_stat[i][1] += fs->rc_stat[i][1]; } - for(i=0; i<f->quant_table_count; i++){ - for(k=0; k<f->context_count[i]; k++){ - for(m=0; m<32; m++){ + for (i = 0; i < f->quant_table_count; i++) { + for (k = 0; k < f->context_count[i]; k++) + for (m = 0; m < 32; m++) { f->rc_stat2[i][k][m][0] += fs->rc_stat2[i][k][m][0]; f->rc_stat2[i][k][m][1] += fs->rc_stat2[i][k][m][1]; } - } } } - for(j=0; j<256; j++){ - snprintf(p, end-p, "%"PRIu64" %"PRIu64" ", f->rc_stat[j][0], f->rc_stat[j][1]); - p+= strlen(p); + for (j = 0; j < 256; j++) { + snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ", + f->rc_stat[j][0], f->rc_stat[j][1]); + p += strlen(p); } - snprintf(p, end-p, "\n"); - - for(i=0; i<f->quant_table_count; i++){ - for(j=0; j<f->context_count[i]; j++){ - for(m=0; m<32; m++){ - snprintf(p, end-p, "%"PRIu64" %"PRIu64" ", f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]); - p+= strlen(p); + snprintf(p, end - p, "\n"); + + for (i = 0; i < f->quant_table_count; i++) { + for (j = 0; j < f->context_count[i]; j++) + for (m = 0; m < 32; m++) { + snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ", + f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]); + p += strlen(p); } - } } - snprintf(p, end-p, "%d\n", f->gob_count); - } else if(avctx->flags&CODEC_FLAG_PASS1) + snprintf(p, end - p, "%d\n", f->gob_count); + } else if (avctx->flags & CODEC_FLAG_PASS1) avctx->stats_out[0] = '\0'; f->picture_number++; pkt->size = buf_p - pkt->data; - pkt->flags |= AV_PKT_FLAG_KEY*p->key_frame; + pkt->flags |= AV_PKT_FLAG_KEY * p->key_frame; *got_packet = 1; return 0; } + #endif /* CONFIG_FFV1_ENCODER */ -static av_cold int common_end(AVCodecContext *avctx){ +static av_cold int common_end(AVCodecContext *avctx) +{ FFV1Context *s = avctx->priv_data; int i, j; if (avctx->codec->decode && s->picture.data[0]) avctx->release_buffer(avctx, &s->picture); - for(j=0; j<s->slice_count; j++){ - FFV1Context *fs= s->slice_context[j]; - for(i=0; i<s->plane_count; i++){ - PlaneContext *p= &fs->plane[i]; + for (j = 0; j < s->slice_count; j++) { + FFV1Context *fs = s->slice_context[j]; + for (i = 0; i < s->plane_count; i++) { + PlaneContext *p = &fs->plane[i]; av_freep(&p->state); av_freep(&p->vlc_state); @@ -1237,18 +1306,17 @@ static av_cold int common_end(AVCodecContext *avctx){ } av_freep(&avctx->stats_out); - for(j=0; j<s->quant_table_count; j++){ + for (j = 0; j < s->quant_table_count; j++) { av_freep(&s->initial_states[j]); - for(i=0; i<s->slice_count; i++){ - FFV1Context *sf= s->slice_context[i]; + for (i = 0; i < s->slice_count; i++) { + FFV1Context *sf = s->slice_context[i]; av_freep(&sf->rc_stat2[j]); } av_freep(&s->rc_stat2[j]); } - for(i=0; i<s->slice_count; i++){ + for (i = 0; i < s->slice_count; i++) av_freep(&s->slice_context[i]); - } return 0; } @@ -1257,162 +1325,182 @@ static av_always_inline void decode_line(FFV1Context *s, int w, int16_t *sample[2], int plane_index, int bits) { - PlaneContext * const p= &s->plane[plane_index]; - RangeCoder * const c= &s->c; + PlaneContext *const p = &s->plane[plane_index]; + RangeCoder *const c = &s->c; int x; - int run_count=0; - int run_mode=0; - int run_index= s->run_index; + int run_count = 0; + int run_mode = 0; + int run_index = s->run_index; - for(x=0; x<w; x++){ + for (x = 0; x < w; x++) { int diff, context, sign; - context= get_context(p, sample[1] + x, sample[0] + x, sample[1] + x); - if(context < 0){ - context= -context; - sign=1; - }else - sign=0; + context = get_context(p, sample[1] + x, sample[0] + x, sample[1] + x); + if (context < 0) { + context = -context; + sign = 1; + } else + sign = 0; av_assert2(context < p->context_count); - if(s->ac){ - diff= get_symbol_inline(c, p->state[context], 1); - }else{ - if(context == 0 && run_mode==0) run_mode=1; - - if(run_mode){ - if(run_count==0 && run_mode==1){ - if(get_bits1(&s->gb)){ - run_count = 1<<ff_log2_run[run_index]; - if(x + run_count <= w) run_index++; - }else{ - if(ff_log2_run[run_index]) run_count = get_bits(&s->gb, ff_log2_run[run_index]); - else run_count=0; - if(run_index) run_index--; - run_mode=2; + if (s->ac) { + diff = get_symbol_inline(c, p->state[context], 1); + } else { + if (context == 0 && run_mode == 0) + run_mode = 1; + + if (run_mode) { + if (run_count == 0 && run_mode == 1) { + if (get_bits1(&s->gb)) { + run_count = 1 << ff_log2_run[run_index]; + if (x + run_count <= w) + run_index++; + } else { + if (ff_log2_run[run_index]) + run_count = get_bits(&s->gb, ff_log2_run[run_index]); + else + run_count = 0; + if (run_index) + run_index--; + run_mode = 2; } } run_count--; - if(run_count < 0){ - run_mode=0; - run_count=0; - diff= get_vlc_symbol(&s->gb, &p->vlc_state[context], bits); - if(diff>=0) diff++; - }else - diff=0; - }else - diff= get_vlc_symbol(&s->gb, &p->vlc_state[context], bits); + if (run_count < 0) { + run_mode = 0; + run_count = 0; + diff = get_vlc_symbol(&s->gb, &p->vlc_state[context], + bits); + if (diff >= 0) + diff++; + } else + diff = 0; + } else + diff = get_vlc_symbol(&s->gb, &p->vlc_state[context], bits); av_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n", run_count, run_index, run_mode, x, get_bits_count(&s->gb)); } - if(sign) diff= -diff; + if (sign) + diff = -diff; - sample[1][x]= (predict(sample[1] + x, sample[0] + x) + diff) & ((1<<bits)-1); + sample[1][x] = (predict(sample[1] + x, sample[0] + x) + diff) & + ((1 << bits) - 1); } - s->run_index= run_index; + s->run_index = run_index; } -static void decode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){ +static void decode_plane(FFV1Context *s, uint8_t *src, + int w, int h, int stride, int plane_index) +{ int x, y; int16_t *sample[2]; - sample[0]=s->sample_buffer +3; - sample[1]=s->sample_buffer+w+6+3; + sample[0] = s->sample_buffer + 3; + sample[1] = s->sample_buffer + w + 6 + 3; - s->run_index=0; + s->run_index = 0; - memset(s->sample_buffer, 0, 2*(w+6)*sizeof(*s->sample_buffer)); + memset(s->sample_buffer, 0, 2 * (w + 6) * sizeof(*s->sample_buffer)); - for(y=0; y<h; y++){ - int16_t *temp = sample[0]; //FIXME try a normal buffer + for (y = 0; y < h; y++) { + int16_t *temp = sample[0]; // FIXME: try a normal buffer - sample[0]= sample[1]; - sample[1]= temp; + sample[0] = sample[1]; + sample[1] = temp; - sample[1][-1]= sample[0][0 ]; - sample[0][ w]= sample[0][w-1]; + sample[1][-1] = sample[0][0]; + sample[0][w] = sample[0][w - 1]; -//{START_TIMER - if(s->avctx->bits_per_raw_sample <= 8){ +// { START_TIMER + if (s->avctx->bits_per_raw_sample <= 8) { decode_line(s, w, sample, plane_index, 8); - for(x=0; x<w; x++){ - src[x + stride*y]= sample[1][x]; - } - }else{ - decode_line(s, w, sample, plane_index, s->avctx->bits_per_raw_sample); - for(x=0; x<w; x++){ - ((uint16_t*)(src + stride*y))[x]= sample[1][x] << (16 - s->avctx->bits_per_raw_sample); - } + for (x = 0; x < w; x++) + src[x + stride * y] = sample[1][x]; + } else { + decode_line(s, w, sample, plane_index, + s->avctx->bits_per_raw_sample); + for (x = 0; x < w; x++) + ((uint16_t *)(src + stride * y))[x] = + sample[1][x] << (16 - s->avctx->bits_per_raw_sample); } -//STOP_TIMER("decode-line")} +// STOP_TIMER("decode-line") } } } -static void decode_rgb_frame(FFV1Context *s, uint32_t *src, int w, int h, int stride){ +static void decode_rgb_frame(FFV1Context *s, uint32_t *src, + int w, int h, int stride) +{ int x, y, p; int16_t *sample[3][2]; - for(x=0; x<3; x++){ - sample[x][0] = s->sample_buffer + x*2 *(w+6) + 3; - sample[x][1] = s->sample_buffer + (x*2+1)*(w+6) + 3; + for (x = 0; x < 3; x++) { + sample[x][0] = s->sample_buffer + x * 2 * (w + 6) + 3; + sample[x][1] = s->sample_buffer + (x * 2 + 1) * (w + 6) + 3; } - s->run_index=0; + s->run_index = 0; - memset(s->sample_buffer, 0, 6*(w+6)*sizeof(*s->sample_buffer)); + memset(s->sample_buffer, 0, 6 * (w + 6) * sizeof(*s->sample_buffer)); - for(y=0; y<h; y++){ - for(p=0; p<3; p++){ - int16_t *temp = sample[p][0]; //FIXME try a normal buffer + for (y = 0; y < h; y++) { + for (p = 0; p < 3; p++) { + int16_t *temp = sample[p][0]; // FIXME: try a normal buffer - sample[p][0]= sample[p][1]; - sample[p][1]= temp; + sample[p][0] = sample[p][1]; + sample[p][1] = temp; - sample[p][1][-1]= sample[p][0][0 ]; - sample[p][0][ w]= sample[p][0][w-1]; + sample[p][1][-1] = sample[p][0][0]; + sample[p][0][w] = sample[p][0][w - 1]; decode_line(s, w, sample[p], FFMIN(p, 1), 9); } - for(x=0; x<w; x++){ - int g= sample[0][1][x]; - int b= sample[1][1][x]; - int r= sample[2][1][x]; + for (x = 0; x < w; x++) { + int g = sample[0][1][x]; + int b = sample[1][1][x]; + int r = sample[2][1][x]; -// assert(g>=0 && b>=0 && r>=0); -// assert(g<256 && b<512 && r<512); +// assert(g >= 0 && b >= 0 && r >= 0); +// assert(g < 256 && b < 512 && r < 512); b -= 0x100; r -= 0x100; - g -= (b + r)>>2; + g -= (b + r) >> 2; b += g; r += g; - src[x + stride*y]= b + (g<<8) + (r<<16) + (0xFF<<24); + src[x + stride * y] = b + (g << 8) + (r << 16) + (0xFF << 24); } } } -static int decode_slice(AVCodecContext *c, void *arg){ - FFV1Context *fs= *(void**)arg; - FFV1Context *f= fs->avctx->priv_data; - int width = fs->slice_width; - int height= fs->slice_height; - int x= fs->slice_x; - int y= fs->slice_y; - AVFrame * const p= &f->picture; +static int decode_slice(AVCodecContext *c, void *arg) +{ + FFV1Context *fs = *(void **)arg; + FFV1Context *f = fs->avctx->priv_data; + int width = fs->slice_width; + int height = fs->slice_height; + int x = fs->slice_x; + int y = fs->slice_y; + AVFrame *const p = &f->picture; av_assert1(width && height); - if(f->colorspace==0){ - const int chroma_width = -((-width )>>f->chroma_h_shift); - const int chroma_height= -((-height)>>f->chroma_v_shift); - const int cx= x>>f->chroma_h_shift; - const int cy= y>>f->chroma_v_shift; - decode_plane(fs, p->data[0] + x + y*p->linesize[0], width, height, p->linesize[0], 0); - - decode_plane(fs, p->data[1] + cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1); - decode_plane(fs, p->data[2] + cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[2], 1); - }else{ - decode_rgb_frame(fs, (uint32_t*)p->data[0] + x + y*(p->linesize[0]/4), width, height, p->linesize[0]/4); + if (f->colorspace == 0) { + const int chroma_width = -((-width) >> f->chroma_h_shift); + const int chroma_height = -((-height) >> f->chroma_v_shift); + const int cx = x >> f->chroma_h_shift; + const int cy = y >> f->chroma_v_shift; + + decode_plane(fs, p->data[0] + x + y * p->linesize[0], + width, height, p->linesize[0], 0); + + decode_plane(fs, p->data[1] + cx + cy * p->linesize[1], + chroma_width, chroma_height, p->linesize[1], 1); + decode_plane(fs, p->data[2] + cx + cy * p->linesize[1], + chroma_width, chroma_height, p->linesize[2], 1); + } else { + decode_rgb_frame(fs, + (uint32_t *)p->data[0] + x + y * (p->linesize[0] / 4), + width, height, p->linesize[0] / 4); } emms_c(); @@ -1420,47 +1508,51 @@ static int decode_slice(AVCodecContext *c, void *arg){ return 0; } -static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale){ +static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale) +{ int v; - int i=0; + int i = 0; uint8_t state[CONTEXT_SIZE]; memset(state, 128, sizeof(state)); - for(v=0; i<128 ; v++){ - int len= get_symbol(c, state, 0) + 1; + for (v = 0; i < 128; v++) { + int len = get_symbol(c, state, 0) + 1; - if(len + i > 128) return -1; + if (len + i > 128) + return -1; - while(len--){ - quant_table[i] = scale*v; + while (len--) { + quant_table[i] = scale * v; i++; } } - for(i=1; i<128; i++){ - quant_table[256-i]= -quant_table[i]; - } - quant_table[128]= -quant_table[127]; + for (i = 1; i < 128; i++) + quant_table[256 - i] = -quant_table[i]; + quant_table[128] = -quant_table[127]; - return 2*v - 1; + return 2 * v - 1; } -static int read_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){ +static int read_quant_tables(RangeCoder *c, + int16_t quant_table[MAX_CONTEXT_INPUTS][256]) +{ int i; - int context_count=1; + int context_count = 1; - for(i=0; i<5; i++){ - context_count*= read_quant_table(c, quant_table[i], context_count); - if(context_count > 32768U){ + for (i = 0; i < 5; i++) { + context_count *= read_quant_table(c, quant_table[i], context_count); + if (context_count > 32768U) { return -1; } } - return (context_count+1)/2; + return (context_count + 1) / 2; } -static int read_extra_header(FFV1Context *f){ - RangeCoder * const c= &f->c; +static int read_extra_header(FFV1Context *f) +{ + RangeCoder *const c = &f->c; uint8_t state[CONTEXT_SIZE]; int i, j, k; uint8_t state2[32][CONTEXT_SIZE]; @@ -1469,170 +1561,190 @@ static int read_extra_header(FFV1Context *f){ memset(state, 128, sizeof(state)); ff_init_range_decoder(c, f->avctx->extradata, f->avctx->extradata_size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - - f->version= get_symbol(c, state, 0); - f->ac= f->avctx->coder_type= get_symbol(c, state, 0); - if(f->ac>1){ - for(i=1; i<256; i++){ - f->state_transition[i]= get_symbol(c, state, 1) + c->one_state[i]; - } - } - f->colorspace= get_symbol(c, state, 0); //YUV cs type - f->avctx->bits_per_raw_sample= get_symbol(c, state, 0); - get_rac(c, state); //no chroma = false - f->chroma_h_shift= get_symbol(c, state, 0); - f->chroma_v_shift= get_symbol(c, state, 0); - get_rac(c, state); //transparency plane - f->plane_count= 2; - f->num_h_slices= 1 + get_symbol(c, state, 0); - f->num_v_slices= 1 + get_symbol(c, state, 0); - if(f->num_h_slices > (unsigned)f->width || f->num_v_slices > (unsigned)f->height){ + ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); + + f->version = get_symbol(c, state, 0); + f->ac = f->avctx->coder_type = get_symbol(c, state, 0); + if (f->ac > 1) + for (i = 1; i < 256; i++) + f->state_transition[i] = get_symbol(c, state, 1) + c->one_state[i]; + f->colorspace = get_symbol(c, state, 0); // YUV cs type + f->avctx->bits_per_raw_sample = get_symbol(c, state, 0); + get_rac(c, state); // no chroma = false + f->chroma_h_shift = get_symbol(c, state, 0); + f->chroma_v_shift = get_symbol(c, state, 0); + get_rac(c, state); // transparency plane + f->plane_count = 2; + f->num_h_slices = 1 + get_symbol(c, state, 0); + f->num_v_slices = 1 + get_symbol(c, state, 0); + + if (f->num_h_slices > (unsigned)f->width || + f->num_v_slices > (unsigned)f->height) { av_log(f->avctx, AV_LOG_ERROR, "too many slices\n"); return -1; } - f->quant_table_count= get_symbol(c, state, 0); - if(f->quant_table_count > (unsigned)MAX_QUANT_TABLES) + f->quant_table_count = get_symbol(c, state, 0); + + if (f->quant_table_count > (unsigned)MAX_QUANT_TABLES) return -1; - for(i=0; i<f->quant_table_count; i++){ - if((f->context_count[i]= read_quant_tables(c, f->quant_tables[i])) < 0){ + + for (i = 0; i < f->quant_table_count; i++) { + f->context_count[i] = read_quant_tables(c, f->quant_tables[i]); + if (f->context_count[i] < 0) { av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n"); return -1; } } - if(allocate_initial_states(f) < 0) + if (allocate_initial_states(f) < 0) return AVERROR(ENOMEM); - for(i=0; i<f->quant_table_count; i++){ - if(get_rac(c, state)){ - for(j=0; j<f->context_count[i]; j++){ - for(k=0; k<CONTEXT_SIZE; k++){ - int pred= j ? f->initial_states[i][j-1][k] : 128; - f->initial_states[i][j][k]= (pred+get_symbol(c, state2[k], 1))&0xFF; + for (i = 0; i < f->quant_table_count; i++) + if (get_rac(c, state)) + for (j = 0; j < f->context_count[i]; j++) + for (k = 0; k < CONTEXT_SIZE; k++) { + int pred = j ? f->initial_states[i][j - 1][k] : 128; + f->initial_states[i][j][k] = + (pred + get_symbol(c, state2[k], 1)) & 0xFF; } - } - } - } - return 0; } -static int read_header(FFV1Context *f){ +static int read_header(FFV1Context *f) +{ uint8_t state[CONTEXT_SIZE]; int i, j, context_count; - RangeCoder * const c= &f->slice_context[0]->c; + RangeCoder *const c = &f->slice_context[0]->c; memset(state, 128, sizeof(state)); - if(f->version < 2){ - f->version= get_symbol(c, state, 0); - f->ac= f->avctx->coder_type= get_symbol(c, state, 0); - if(f->ac>1){ - for(i=1; i<256; i++){ - f->state_transition[i]= get_symbol(c, state, 1) + c->one_state[i]; - } - } - f->colorspace= get_symbol(c, state, 0); //YUV cs type - if(f->version>0) - f->avctx->bits_per_raw_sample= get_symbol(c, state, 0); - get_rac(c, state); //no chroma = false - f->chroma_h_shift= get_symbol(c, state, 0); - f->chroma_v_shift= get_symbol(c, state, 0); - get_rac(c, state); //transparency plane - f->plane_count= 2; + if (f->version < 2) { + f->version = get_symbol(c, state, 0); + f->ac = f->avctx->coder_type = get_symbol(c, state, 0); + if (f->ac > 1) + for (i = 1; i < 256; i++) + f->state_transition[i] = get_symbol(c, state, 1) + c->one_state[i]; + f->colorspace = get_symbol(c, state, 0); // YUV cs type + if (f->version > 0) + f->avctx->bits_per_raw_sample = get_symbol(c, state, 0); + get_rac(c, state); // no chroma = false + f->chroma_h_shift = get_symbol(c, state, 0); + f->chroma_v_shift = get_symbol(c, state, 0); + get_rac(c, state); // transparency plane + f->plane_count = 2; } - if(f->colorspace==0){ - if(f->avctx->bits_per_raw_sample<=8){ - switch(16*f->chroma_h_shift + f->chroma_v_shift){ - case 0x00: f->avctx->pix_fmt= AV_PIX_FMT_YUV444P; break; - case 0x10: f->avctx->pix_fmt= AV_PIX_FMT_YUV422P; break; - case 0x11: f->avctx->pix_fmt= AV_PIX_FMT_YUV420P; break; - case 0x20: f->avctx->pix_fmt= AV_PIX_FMT_YUV411P; break; - case 0x22: f->avctx->pix_fmt= AV_PIX_FMT_YUV410P; break; + if (f->colorspace == 0) { + if (f->avctx->bits_per_raw_sample <= 8) { + switch (16 * f->chroma_h_shift + f->chroma_v_shift) { + case 0x00: + f->avctx->pix_fmt = AV_PIX_FMT_YUV444P; + break; + case 0x10: + f->avctx->pix_fmt = AV_PIX_FMT_YUV422P; + break; + case 0x11: + f->avctx->pix_fmt = AV_PIX_FMT_YUV420P; + break; + case 0x20: + f->avctx->pix_fmt = AV_PIX_FMT_YUV411P; + break; + case 0x22: + f->avctx->pix_fmt = AV_PIX_FMT_YUV410P; + break; default: av_log(f->avctx, AV_LOG_ERROR, "format not supported\n"); return -1; } - }else{ - switch(16*f->chroma_h_shift + f->chroma_v_shift){ - case 0x00: f->avctx->pix_fmt= AV_PIX_FMT_YUV444P16; break; - case 0x10: f->avctx->pix_fmt= AV_PIX_FMT_YUV422P16; break; - case 0x11: f->avctx->pix_fmt= AV_PIX_FMT_YUV420P16; break; + } else { + switch (16 * f->chroma_h_shift + f->chroma_v_shift) { + case 0x00: + f->avctx->pix_fmt = AV_PIX_FMT_YUV444P16; + break; + case 0x10: + f->avctx->pix_fmt = AV_PIX_FMT_YUV422P16; + break; + case 0x11: + f->avctx->pix_fmt = AV_PIX_FMT_YUV420P16; + break; default: av_log(f->avctx, AV_LOG_ERROR, "format not supported\n"); return -1; } } - }else if(f->colorspace==1){ - if(f->chroma_h_shift || f->chroma_v_shift){ - av_log(f->avctx, AV_LOG_ERROR, "chroma subsampling not supported in this colorspace\n"); + } else if (f->colorspace == 1) { + if (f->chroma_h_shift || f->chroma_v_shift) { + av_log(f->avctx, AV_LOG_ERROR, + "chroma subsampling not supported in this colorspace\n"); return -1; } - f->avctx->pix_fmt= AV_PIX_FMT_RGB32; - }else{ + f->avctx->pix_fmt = AV_PIX_FMT_RGB32; + } else { av_log(f->avctx, AV_LOG_ERROR, "colorspace not supported\n"); return -1; } av_dlog(f->avctx, "%d %d %d\n", f->chroma_h_shift, f->chroma_v_shift, f->avctx->pix_fmt); - if(f->version < 2){ - context_count= read_quant_tables(c, f->quant_table); - if(context_count < 0){ - av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n"); - return -1; + + if (f->version < 2) { + context_count = read_quant_tables(c, f->quant_table); + if (context_count < 0) { + av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n"); + return -1; } - }else{ - f->slice_count= get_symbol(c, state, 0); - if(f->slice_count > (unsigned)MAX_SLICES) + } else { + f->slice_count = get_symbol(c, state, 0); + if (f->slice_count > (unsigned)MAX_SLICES) return -1; } - for(j=0; j<f->slice_count; j++){ - FFV1Context *fs= f->slice_context[j]; - fs->ac= f->ac; - - if(f->version >= 2){ - fs->slice_x = get_symbol(c, state, 0) *f->width ; - fs->slice_y = get_symbol(c, state, 0) *f->height; - fs->slice_width =(get_symbol(c, state, 0)+1)*f->width + fs->slice_x; - fs->slice_height=(get_symbol(c, state, 0)+1)*f->height + fs->slice_y; - - fs->slice_x /= f->num_h_slices; - fs->slice_y /= f->num_v_slices; - fs->slice_width = fs->slice_width /f->num_h_slices - fs->slice_x; - fs->slice_height = fs->slice_height/f->num_v_slices - fs->slice_y; - if((unsigned)fs->slice_width > f->width || (unsigned)fs->slice_height > f->height) + for (j = 0; j < f->slice_count; j++) { + FFV1Context *fs = f->slice_context[j]; + fs->ac = f->ac; + + if (f->version >= 2) { + fs->slice_x = get_symbol(c, state, 0) * f->width; + fs->slice_y = get_symbol(c, state, 0) * f->height; + fs->slice_width = (get_symbol(c, state, 0) + 1) * f->width + fs->slice_x; + fs->slice_height = (get_symbol(c, state, 0) + 1) * f->height + fs->slice_y; + + fs->slice_x /= f->num_h_slices; + fs->slice_y /= f->num_v_slices; + fs->slice_width = fs->slice_width / f->num_h_slices - fs->slice_x; + fs->slice_height = fs->slice_height / f->num_v_slices - fs->slice_y; + if ((unsigned)fs->slice_width > f->width || + (unsigned)fs->slice_height > f->height) return -1; - if( (unsigned)fs->slice_x + (uint64_t)fs->slice_width > f->width - || (unsigned)fs->slice_y + (uint64_t)fs->slice_height > f->height) + if ((unsigned)fs->slice_x + (uint64_t)fs->slice_width > f->width || + (unsigned)fs->slice_y + (uint64_t)fs->slice_height > f->height) return -1; } - for(i=0; i<f->plane_count; i++){ - PlaneContext * const p= &fs->plane[i]; + for (i = 0; i < f->plane_count; i++) { + PlaneContext *const p = &fs->plane[i]; - if(f->version >= 2){ - int idx=get_symbol(c, state, 0); - if(idx > (unsigned)f->quant_table_count){ - av_log(f->avctx, AV_LOG_ERROR, "quant_table_index out of range\n"); + if (f->version >= 2) { + int idx = get_symbol(c, state, 0); + if (idx > (unsigned)f->quant_table_count) { + av_log(f->avctx, AV_LOG_ERROR, + "quant_table_index out of range\n"); return -1; } - p->quant_table_index= idx; - memcpy(p->quant_table, f->quant_tables[idx], sizeof(p->quant_table)); - context_count= f->context_count[idx]; - }else{ + p->quant_table_index = idx; + memcpy(p->quant_table, f->quant_tables[idx], + sizeof(p->quant_table)); + context_count = f->context_count[idx]; + } else { memcpy(p->quant_table, f->quant_table, sizeof(p->quant_table)); } - if(p->context_count < context_count){ + if (p->context_count < context_count) { av_freep(&p->state); av_freep(&p->vlc_state); } - p->context_count= context_count; + p->context_count = context_count; } } @@ -1645,23 +1757,25 @@ static av_cold int decode_init(AVCodecContext *avctx) common_init(avctx); - if(avctx->extradata && read_extra_header(f) < 0) + if (avctx->extradata && read_extra_header(f) < 0) return -1; - if(init_slice_contexts(f) < 0) + if (init_slice_contexts(f) < 0) return -1; return 0; } -static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt){ - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - FFV1Context *f = avctx->priv_data; - RangeCoder * const c= &f->slice_context[0]->c; - AVFrame * const p= &f->picture; +static int decode_frame(AVCodecContext *avctx, void *data, + int *data_size, AVPacket *avpkt) +{ + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + FFV1Context *f = avctx->priv_data; + RangeCoder *const c = &f->slice_context[0]->c; + AVFrame *const p = &f->picture; int bytes_read, i; - uint8_t keystate= 128; + uint8_t keystate = 128; const uint8_t *buf_p; AVFrame *picture = data; @@ -1671,66 +1785,67 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac avctx->release_buffer(avctx, p); ff_init_range_decoder(c, buf, buf_size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); + ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); - - p->pict_type= AV_PICTURE_TYPE_I; //FIXME I vs. P - if(get_rac(c, &keystate)){ - p->key_frame= 1; - if(read_header(f) < 0) + p->pict_type = AV_PICTURE_TYPE_I; // FIXME: I vs. P + if (get_rac(c, &keystate)) { + p->key_frame = 1; + if (read_header(f) < 0) return -1; - if(init_slice_state(f) < 0) + if (init_slice_state(f) < 0) return -1; clear_state(f); - }else{ - p->key_frame= 0; + } else { + p->key_frame = 0; } - if(f->ac>1){ + if (f->ac > 1) { int i; - for(i=1; i<256; i++){ - c->one_state[i]= f->state_transition[i]; - c->zero_state[256-i]= 256-c->one_state[i]; + for (i = 1; i < 256; i++) { + c->one_state[i] = f->state_transition[i]; + c->zero_state[256 - i] = 256 - c->one_state[i]; } } - p->reference= 0; - if(avctx->get_buffer(avctx, p) < 0){ + p->reference = 0; + if (avctx->get_buffer(avctx, p) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } - if(avctx->debug&FF_DEBUG_PICT_INFO) + if (avctx->debug & FF_DEBUG_PICT_INFO) av_log(avctx, AV_LOG_ERROR, "keyframe:%d coder:%d\n", p->key_frame, f->ac); - if(!f->ac){ + if (!f->ac) { bytes_read = c->bytestream - c->bytestream_start - 1; - if(bytes_read ==0) av_log(avctx, AV_LOG_ERROR, "error at end of AC stream\n"); //FIXME - init_get_bits(&f->slice_context[0]->gb, buf + bytes_read, (buf_size - bytes_read) * 8); + if (bytes_read == 0) + av_log(avctx, AV_LOG_ERROR, "error at end of AC stream\n"); // FIXME + init_get_bits(&f->slice_context[0]->gb, buf + bytes_read, + (buf_size - bytes_read) * 8); } else { bytes_read = 0; /* avoid warning */ } - buf_p= buf + buf_size; - for(i=f->slice_count-1; i>0; i--){ - FFV1Context *fs= f->slice_context[i]; - int v= AV_RB24(buf_p-3)+3; - if(buf_p - buf <= v){ + buf_p = buf + buf_size; + for (i = f->slice_count - 1; i > 0; i--) { + FFV1Context *fs = f->slice_context[i]; + int v = AV_RB24(buf_p - 3) + 3; + if (buf_p - buf <= v) { av_log(avctx, AV_LOG_ERROR, "Slice pointer chain broken\n"); return -1; } buf_p -= v; - if(fs->ac){ + if (fs->ac) ff_init_range_decoder(&fs->c, buf_p, v); - }else{ + else init_get_bits(&fs->gb, buf_p, v * 8); - } } - avctx->execute(avctx, decode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*)); + avctx->execute(avctx, decode_slice, &f->slice_context[0], + NULL, f->slice_count, sizeof(void *)); f->picture_number++; - *picture= *p; + *picture = *p; *data_size = sizeof(AVFrame); return buf_size; @@ -1759,10 +1874,12 @@ AVCodec ff_ffv1_encoder = { .encode2 = encode_frame, .close = common_end, .capabilities = CODEC_CAP_SLICE_THREADS, - .pix_fmts = (const enum AVPixelFormat[]){ - AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV411P, - AV_PIX_FMT_YUV410P, AV_PIX_FMT_RGB32, AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, - AV_PIX_FMT_YUV444P16, AV_PIX_FMT_NONE + .pix_fmts = (const enum AVPixelFormat[]) { + AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, + AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, + AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, + AV_PIX_FMT_RGB32, + AV_PIX_FMT_NONE }, .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"), }; 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