On 2012-01-09 00:49:46 +0530, Aneesh Dogra wrote:
> >> time ./avconv -i file.avi -f null -
> Before : real 0m7.784s
> After : real 0m3.662s
>
> Tested on a Intel Core i3 Processor.
how many cores? hyperthreading?
> ---
> libavcodec/utvideo.c | 11 +++++++----
> 1 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/libavcodec/utvideo.c b/libavcodec/utvideo.c
> index d105d29..89854c2 100644
> --- a/libavcodec/utvideo.c
> +++ b/libavcodec/utvideo.c
> @@ -31,6 +31,7 @@
> #include "bytestream.h"
> #include "get_bits.h"
> #include "dsputil.h"
> +#include "thread.h"
>
> enum {
> PRED_NONE = 0,
> @@ -366,15 +367,17 @@ static int decode_frame(AVCodecContext *avctx, void
> *data, int *data_size, AVPac
> int ret;
>
> if (c->pic.data[0])
> - avctx->release_buffer(avctx, &c->pic);
> + ff_thread_release_buffer(avctx, &c->pic);
>
> c->pic.reference = 1;
> c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
> - if ((ret = avctx->get_buffer(avctx, &c->pic)) < 0) {
> + if ((ret = ff_thread_get_buffer(avctx, &c->pic)) < 0) {
> av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
> return ret;
> }
>
> + ff_thread_finish_setup(avctx);
> +
> /* parse plane structure to retrieve frame flags and validate slice
> offsets */
> ptr = buf;
> for (i = 0; i < c->planes; i++) {
> @@ -557,7 +560,7 @@ static av_cold int decode_end(AVCodecContext *avctx)
> UtvideoContext * const c = avctx->priv_data;
>
> if (c->pic.data[0])
> - avctx->release_buffer(avctx, &c->pic);
> + ff_thread_release_buffer(avctx, &c->pic);
>
> av_freep(&c->slice_bits);
>
> @@ -572,7 +575,7 @@ AVCodec ff_utvideo_decoder = {
> .init = decode_init,
> .close = decode_end,
> .decode = decode_frame,
> - .capabilities = CODEC_CAP_DR1,
> + .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
> .long_name = NULL_IF_CONFIG_SMALL("Ut Video"),
> };
patch looks good
Janne
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