multimedia/ffmpeg: add KVAZAAR option (another HEVC implementation)

1 files changed, 73 insertions, 0 deletions

diff --git a/multimedia/ffmpeg/files/patch-kvazaar-0.7 b/multimedia/ffmpeg/files/patch-kvazaar-0.7
new file mode 100644
index 00000000000..77e1e9da56b
--- /dev/null
+++ b/multimedia/ffmpeg/files/patch-kvazaar-0.7
@@ -0,0 +1,73 @@
+From b3777b2c2eb5d04386992c0388985914d5bbebba Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Arttu=20Yl=C3=A4-Outinen?= <arttu.yla-outinen@tut.fi>
+Date: Mon, 28 Sep 2015 10:55:14 +0300
+Subject: libkvazaar: Update to work with the latest version
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Function encoder_encode in Kvazaar API was changed to have new output
+parameters: source picture and frame info. Frame info is used to set the
+keyframe flag and source picture is ignored.
+
+Signed-off-by: Arttu Ylä-Outinen <arttu.yla-outinen@tut.fi>
+---
+ libavcodec/libkvazaar.c | 16 +++++++++++++++-
+ 1 file changed, 15 insertions(+), 1 deletion(-)
+
+diff --git configure configure
+index 4cc45ad..af3fbf4 100755
+--- configure
++++ configure
+@@ -5237,7 +5237,7 @@
+                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
+                                done || die "ERROR: libgsm not found"; }
+ enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
+-enabled libkvazaar        && require_pkg_config "kvazaar < 0.7.0" kvazaar.h kvz_api_get
++enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.0" kvazaar.h kvz_api_get
+ enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
+ enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
+ enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
+diff --git libavcodec/libkvazaar.c libavcodec/libkvazaar.c
+index 9fb5be7..7430e0a 100644
+--- libavcodec/libkvazaar.c
++++ libavcodec/libkvazaar.c
+@@ -137,8 +137,11 @@ static int libkvazaar_encode(AVCodecContext *avctx,
+ {
+     int retval = 0;
+     kvz_picture *img_in = NULL;
++
+     kvz_data_chunk *data_out = NULL;
+     uint32_t len_out = 0;
++    kvz_frame_info frame_info;
++
+     LibkvazaarContext *ctx = avctx->priv_data;
+ 
+     *got_packet_ptr = 0;
+@@ -173,7 +176,10 @@ static int libkvazaar_encode(AVCodecContext *avctx,
+         }
+     }
+ 
+-    if (!ctx->api->encoder_encode(ctx->encoder, img_in, &data_out, &len_out, NULL)) {
++    if (!ctx->api->encoder_encode(ctx->encoder, img_in,
++                                  &data_out, &len_out,
++                                  NULL, NULL,
++                                  &frame_info)) {
+         av_log(avctx, AV_LOG_ERROR, "Failed to encode frame.\n");
+         retval = AVERROR_EXTERNAL;
+         goto done;
+@@ -198,6 +204,14 @@ static int libkvazaar_encode(AVCodecContext *avctx,
+ 
+         ctx->api->chunk_free(data_out);
+         data_out = NULL;
++
++        avpkt->flags = 0;
++        // IRAP VCL NAL unit types span the range
++        // [BLA_W_LP (16), RSV_IRAP_VCL23 (23)].
++        if (frame_info.nal_unit_type >= KVZ_NAL_BLA_W_LP &&
++                frame_info.nal_unit_type <= KVZ_NAL_RSV_IRAP_VCL23) {
++            avpkt->flags |= AV_PKT_FLAG_KEY;
++        }
+     }
+ 
+ done: