/*
* Copyright (c) 2010, Google, Inc.
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
#include "libavutil/base64.h"
+#include "libavutil/opt.h"
#include "libavutil/mathematics.h"
/**
};
typedef struct VP8EncoderContext {
+ AVClass *av_class;
struct vpx_codec_ctx encoder;
struct vpx_image rawimg;
struct vpx_fixed_buf twopass_stats;
- unsigned long deadline; //i.e., RT/GOOD/BEST
+ int deadline; //i.e., RT/GOOD/BEST
struct FrameListData *coded_frame_list;
+
+ int cpuused;
+
+ /**
+ * VP8 specific flags, see VP8F_* below.
+ */
+ int flags;
+#define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links
+#define VP8F_AUTO_ALT_REF 0x00000002 ///< Enable automatic alternate reference frame generation
+
+ int arnr_max_frames;
+ int arnr_strength;
+ int arnr_type;
} VP8Context;
+#define V AV_OPT_FLAG_VIDEO_PARAM
+#define E AV_OPT_FLAG_ENCODING_PARAM
+
+static const AVOption options[]={
+{"speed", "", offsetof(VP8Context, cpuused), FF_OPT_TYPE_INT, 3, -16, 16, V|E},
+{"quality", "", offsetof(VP8Context, deadline), FF_OPT_TYPE_INT, VPX_DL_GOOD_QUALITY, INT_MIN, INT_MAX, V|E, "quality"},
+{"best", NULL, 0, FF_OPT_TYPE_CONST, VPX_DL_BEST_QUALITY, INT_MIN, INT_MAX, V|E, "quality"},
+{"good", NULL, 0, FF_OPT_TYPE_CONST, VPX_DL_GOOD_QUALITY, INT_MIN, INT_MAX, V|E, "quality"},
+{"realtime", NULL, 0, FF_OPT_TYPE_CONST, VPX_DL_REALTIME, INT_MIN, INT_MAX, V|E, "quality"},
+{"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, 0, 0, UINT_MAX, V|E, "flags"},
+{"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, VP8F_ERROR_RESILIENT, INT_MIN, INT_MAX, V|E, "flags"},
+{"altref", "enable use of alternate reference frames (VP8/2-pass only)", 0, FF_OPT_TYPE_CONST, VP8F_AUTO_ALT_REF, INT_MIN, INT_MAX, V|E, "flags"},
+{"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), FF_OPT_TYPE_INT, 0, 0, 15, V|E},
+{"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), FF_OPT_TYPE_INT, 3, 0, 6, V|E},
+{"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), FF_OPT_TYPE_INT, 3, 1, 3, V|E},
+{NULL}
+};
+static const AVClass class = { "libvpx", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
+
+#undef V
+#undef E
+
/** String mappings for enum vp8e_enc_control_id */
static const char *ctlidstr[] = {
[VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
[VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
[VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
[VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
+ [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
};
static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
{
VP8Context *ctx = avctx->priv_data;
const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
- int cpuused = 3;
struct vpx_codec_enc_cfg enccfg;
int res;
enccfg.g_timebase.num = avctx->time_base.num;
enccfg.g_timebase.den = avctx->time_base.den;
enccfg.g_threads = avctx->thread_count;
+ enccfg.g_lag_in_frames= FFMIN(avctx->rc_lookahead, 25); //0-25, avoids init failure
if (avctx->flags & CODEC_FLAG_PASS1)
enccfg.g_pass = VPX_RC_FIRST_PASS;
if (avctx->rc_min_rate == avctx->rc_max_rate &&
avctx->rc_min_rate == avctx->bit_rate)
enccfg.rc_end_usage = VPX_CBR;
+ else if (avctx->crf)
+ enccfg.rc_end_usage = VPX_CQ;
enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
AV_ROUND_NEAR_INF);
enccfg.rc_buf_initial_sz =
avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
+ enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100);
//_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
if (avctx->keyint_min == avctx->gop_size)
enccfg.rc_twopass_stats_in = ctx->twopass_stats;
}
- ctx->deadline = VPX_DL_GOOD_QUALITY;
/* 0-3: For non-zero values the encoder increasingly optimizes for reduced
complexity playback on low powered devices at the expense of encode
quality. */
if (avctx->profile != FF_PROFILE_UNKNOWN)
enccfg.g_profile = avctx->profile;
+ enccfg.g_error_resilient = ctx->flags & VP8F_ERROR_RESILIENT;
+
dump_enc_cfg(avctx, &enccfg);
/* Construct Encoder Context */
res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
//codec control failures are currently treated only as warnings
av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
- codecctl_int(avctx, VP8E_SET_CPUUSED, cpuused);
+ codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpuused);
codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
+ codecctl_int(avctx, VP8E_SET_CQ_LEVEL, (int)avctx->crf);
+ codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, !!(ctx->flags & VP8F_AUTO_ALT_REF));
+ codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
+ codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
+ codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
+
+ av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
//provide dummy value to initialize wrapper, values will be updated each _encode()
vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
CODEC_CAP_DELAY,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
+ .priv_class= &class,
};
projects / ffmpeg / blobdiff