On Wed, Feb 22, 2017 at 10:47:13PM +0000, Rostislav Pehlivanov wrote:
> Its been extensively tested and it gives gain for practically free, so
> make it enabled by default.
>
> Signed-off-by: Rostislav Pehlivanov <atomnu...@gmail.com>
> ---
> libavcodec/mjpegenc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
> index cc917edb7f..03c3d0ab13 100644
> --- a/libavcodec/mjpegenc.c
> +++ b/libavcodec/mjpegenc.c
> @@ -444,7 +444,7 @@ FF_MPV_COMMON_OPTS
> { "left", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX,
> VE, "pred" },
> { "plane", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, INT_MIN, INT_MAX,
> VE, "pred" },
> { "median", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3 }, INT_MIN, INT_MAX,
> VE, "pred" },
> -{ "huffman", "Huffman table strategy", OFFSET(huffman), AV_OPT_TYPE_INT, {
> .i64 = HUFFMAN_TABLE_DEFAULT }, 0, NB_HUFFMAN_TABLE_OPTION - 1, VE, "huffman"
> },
> +{ "huffman", "Huffman table strategy", OFFSET(huffman), AV_OPT_TYPE_INT, {
> .i64 = HUFFMAN_TABLE_OPTIMAL }, 0, NB_HUFFMAN_TABLE_OPTION - 1, VE, "huffman"
> },
> { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = HUFFMAN_TABLE_DEFAULT
> }, INT_MIN, INT_MAX, VE, "huffman" },
> { "optimal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = HUFFMAN_TABLE_OPTIMAL
> }, INT_MIN, INT_MAX, VE, "huffman" },
> { NULL},
> --
> 2.12.0.rc1.440.g5b76565f74./ffmpeg -i lena.pnm -threads 2 -thread_type slice file.jpg fails with Assertion n <= 31 && value < (1U << n) failed at libavcodec/put_bits.h:157 I dont think slice threads work with optimal huffman [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB During times of universal deceit, telling the truth becomes a revolutionary act. -- George Orwell
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