/*
* Copyright (c) 2010, Google, Inc.
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <vpx/vp8cx.h>
#include "avcodec.h"
+#include "internal.h"
+#include "libvpx.h"
#include "libavutil/base64.h"
+#include "libavutil/common.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/opt.h"
/**
* Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
* One encoded frame returned from the library.
*/
struct FrameListData {
- void *buf; /**≤ compressed data buffer */
- size_t sz; /**≤ length of compressed data */
- int64_t pts; /**≤ time stamp to show frame
+ void *buf; /**< compressed data buffer */
+ size_t sz; /**< length of compressed data */
+ int64_t pts; /**< time stamp to show frame
(in timebase units) */
- unsigned long duration; /**≤ duration to show frame
+ unsigned long duration; /**< duration to show frame
(in timebase units) */
- uint32_t flags; /**≤ flags for this frame */
+ uint32_t flags; /**< flags for this frame */
struct FrameListData *next;
};
typedef struct VP8EncoderContext {
+ AVClass *class;
struct vpx_codec_ctx encoder;
struct vpx_image rawimg;
struct vpx_fixed_buf twopass_stats;
unsigned long deadline; //i.e., RT/GOOD/BEST
struct FrameListData *coded_frame_list;
+ int cpu_used;
+ int auto_alt_ref;
+ int arnr_max_frames;
+ int arnr_strength;
+ int arnr_type;
+ int lag_in_frames;
+ int error_resilient;
+ int crf;
} VP8Context;
/** String mappings for enum vp8e_enc_control_id */
-static const char *ctlidstr[] = {
+static const char *const ctlidstr[] = {
[VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
[VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
[VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
[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)
return 0;
}
-static av_cold int vp8_init(AVCodecContext *avctx)
+static av_cold int vpx_init(AVCodecContext *avctx,
+ const struct vpx_codec_iface *iface)
{
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.den = avctx->time_base.den;
enccfg.g_threads = avctx->thread_count;
+ if (ctx->lag_in_frames >= 0)
+ enccfg.g_lag_in_frames = ctx->lag_in_frames;
+
if (avctx->flags & CODEC_FLAG_PASS1)
enccfg.g_pass = VPX_RC_FIRST_PASS;
else if (avctx->flags & CODEC_FLAG_PASS2)
else
enccfg.g_pass = VPX_RC_ONE_PASS;
- if (avctx->rc_min_rate == avctx->rc_max_rate &&
- avctx->rc_min_rate == avctx->bit_rate)
- enccfg.rc_end_usage = VPX_CBR;
- enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
+ if (!avctx->bit_rate)
+ avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
+ else
+ enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
AV_ROUND_NEAR_INF);
- //convert [1,51] -> [0,63]
- enccfg.rc_min_quantizer = ((avctx->qmin * 5 + 1) >> 2) - 1;
- enccfg.rc_max_quantizer = ((avctx->qmax * 5 + 1) >> 2) - 1;
+ if (ctx->crf)
+ enccfg.rc_end_usage = VPX_CQ;
+ else if (avctx->rc_min_rate == avctx->rc_max_rate &&
+ avctx->rc_min_rate == avctx->bit_rate)
+ enccfg.rc_end_usage = VPX_CBR;
+
+ if (avctx->qmin > 0)
+ enccfg.rc_min_quantizer = avctx->qmin;
+ if (avctx->qmax > 0)
+ enccfg.rc_max_quantizer = avctx->qmax;
enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
+ //0-100 (0 => CBR, 100 => VBR)
+ enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
+ enccfg.rc_2pass_vbr_minsection_pct =
+ avctx->rc_min_rate * 100LL / avctx->bit_rate;
+ if (avctx->rc_max_rate)
+ enccfg.rc_2pass_vbr_maxsection_pct =
+ avctx->rc_max_rate * 100LL / avctx->bit_rate;
+
+ if (avctx->rc_buffer_size)
+ enccfg.rc_buf_sz =
+ avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
+ if (avctx->rc_initial_buffer_occupancy)
+ 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;
+
//_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
- if (avctx->keyint_min == avctx->gop_size)
+ if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
enccfg.kf_min_dist = avctx->keyint_min;
- enccfg.kf_max_dist = avctx->gop_size;
+ if (avctx->gop_size >= 0)
+ enccfg.kf_max_dist = avctx->gop_size;
if (enccfg.g_pass == VPX_RC_FIRST_PASS)
enccfg.g_lag_in_frames = 0;
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->error_resilient;
dump_enc_cfg(avctx, &enccfg);
/* Construct Encoder Context */
//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);
+ if (ctx->cpu_used != INT_MIN)
+ codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
+ if (ctx->auto_alt_ref >= 0)
+ codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
+ if (ctx->arnr_max_frames >= 0)
+ codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
+ if (ctx->arnr_strength >= 0)
+ codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
+ if (ctx->arnr_type >= 0)
+ codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
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, ctx->crf);
//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,
(unsigned char*)1);
- avctx->coded_frame = avcodec_alloc_frame();
+ avctx->coded_frame = av_frame_alloc();
if (!avctx->coded_frame) {
av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
vp8_free(avctx);
}
/**
- * Store coded frame information in format suitable for return from encode().
+ * Store coded frame information in format suitable for return from encode2().
*
- * Write buffer information from @a cx_frame to @a buf & @a buf_size.
- * Timing/frame details to @a coded_frame.
- * @return Frame size written to @a buf on success
- * @return AVERROR(EINVAL) on error
+ * Write information from @a cx_frame to @a pkt
+ * @return packet data size on success
+ * @return a negative AVERROR on error
*/
static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
- uint8_t *buf, int buf_size, AVFrame *coded_frame)
+ AVPacket *pkt, AVFrame *coded_frame)
{
- if ((int) cx_frame->sz <= buf_size) {
- buf_size = cx_frame->sz;
- memcpy(buf, cx_frame->buf, buf_size);
+ int ret = ff_alloc_packet(pkt, cx_frame->sz);
+ if (ret >= 0) {
+ memcpy(pkt->data, cx_frame->buf, pkt->size);
+ pkt->pts = pkt->dts = cx_frame->pts;
coded_frame->pts = cx_frame->pts;
coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
- if (coded_frame->key_frame)
- coded_frame->pict_type = FF_I_TYPE;
- else
- coded_frame->pict_type = FF_P_TYPE;
+ if (coded_frame->key_frame) {
+ coded_frame->pict_type = AV_PICTURE_TYPE_I;
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ } else
+ coded_frame->pict_type = AV_PICTURE_TYPE_P;
} else {
av_log(avctx, AV_LOG_ERROR,
- "Compressed frame larger than storage provided! (%zu/%d)\n",
- cx_frame->sz, buf_size);
- return AVERROR(EINVAL);
+ "Error getting output packet of size %zu.\n", cx_frame->sz);
+ return ret;
}
- return buf_size;
+ return pkt->size;
}
/**
* @return AVERROR(EINVAL) on output size error
* @return AVERROR(ENOMEM) on coded frame queue data allocation error
*/
-static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out,
AVFrame *coded_frame)
{
VP8Context *ctx = avctx->priv_data;
if (ctx->coded_frame_list) {
struct FrameListData *cx_frame = ctx->coded_frame_list;
/* return the leading frame if we've already begun queueing */
- size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame);
+ size = storeframe(avctx, cx_frame, pkt_out, coded_frame);
if (size < 0)
- return AVERROR(EINVAL);
+ return size;
ctx->coded_frame_list = cx_frame->next;
free_coded_frame(cx_frame);
}
provided a frame for output */
assert(!ctx->coded_frame_list);
cx_pktcpy(&cx_frame, pkt);
- size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame);
+ size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
if (size < 0)
- return AVERROR(EINVAL);
+ return size;
} else {
struct FrameListData *cx_frame =
av_malloc(sizeof(struct FrameListData));
break;
case VPX_CODEC_STATS_PKT: {
struct vpx_fixed_buf *stats = &ctx->twopass_stats;
- stats->buf = av_realloc(stats->buf,
- stats->sz + pkt->data.twopass_stats.sz);
- if (!stats->buf) {
+ int err;
+ if ((err = av_reallocp(&stats->buf,
+ stats->sz +
+ pkt->data.twopass_stats.sz)) < 0) {
+ stats->sz = 0;
av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
- return AVERROR(ENOMEM);
+ return err;
}
memcpy((uint8_t*)stats->buf + stats->sz,
pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
return size;
}
-static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
- void *data)
+static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *frame, int *got_packet)
{
VP8Context *ctx = avctx->priv_data;
- AVFrame *frame = data;
struct vpx_image *rawimg = NULL;
int64_t timestamp = 0;
int res, coded_size;
+ vpx_enc_frame_flags_t flags = 0;
if (frame) {
rawimg = &ctx->rawimg;
rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
timestamp = frame->pts;
+ if (frame->pict_type == AV_PICTURE_TYPE_I)
+ flags |= VPX_EFLAG_FORCE_KF;
}
res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
- avctx->ticks_per_frame, 0, ctx->deadline);
+ avctx->ticks_per_frame, flags, ctx->deadline);
if (res != VPX_CODEC_OK) {
log_encoder_error(avctx, "Error encoding frame");
return AVERROR_INVALIDDATA;
}
- coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame);
+ coded_size = queue_frames(avctx, pkt, avctx->coded_frame);
if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
ctx->twopass_stats.sz);
}
- return coded_size;
+
+ *got_packet = !!coded_size;
+ return 0;
+}
+
+#define OFFSET(x) offsetof(VP8Context, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE},
+ { "auto-alt-ref", "Enable use of alternate reference "
+ "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
+ { "lag-in-frames", "Number of frames to look ahead for "
+ "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
+ { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
+ { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
+ { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "arnr_type"},
+ { "backward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "arnr_type" },
+ { "forward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "arnr_type" },
+ { "centered", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "arnr_type" },
+ { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
+ { "best", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
+ { "good", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
+ { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_REALTIME}, 0, 0, VE, "quality"},
+ { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
+#ifdef VPX_ERROR_RESILIENT_DEFAULT
+ { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
+ { "partitions", "The frame partitions are independently decodable "
+ "by the bool decoder, meaning that partitions can be decoded even "
+ "though earlier partitions have been lost. Note that intra predicition"
+ " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
+#endif
+ { "crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, VE },
+ { NULL }
+};
+
+static const AVCodecDefault defaults[] = {
+ { "qmin", "-1" },
+ { "qmax", "-1" },
+ { "g", "-1" },
+ { "keyint_min", "-1" },
+ { NULL },
+};
+
+#if CONFIG_LIBVPX_VP8_ENCODER
+static av_cold int vp8_init(AVCodecContext *avctx)
+{
+ return vpx_init(avctx, &vpx_codec_vp8_cx_algo);
+}
+
+static const AVClass class_vp8 = {
+ .class_name = "libvpx encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_libvpx_vp8_encoder = {
+ .name = "libvpx",
+ .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_VP8,
+ .priv_data_size = sizeof(VP8Context),
+ .init = vp8_init,
+ .encode2 = vp8_encode,
+ .close = vp8_free,
+ .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
+ .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
+ .priv_class = &class_vp8,
+ .defaults = defaults,
+};
+#endif /* CONFIG_LIBVPX_VP8_ENCODER */
+
+#if CONFIG_LIBVPX_VP9_ENCODER
+static av_cold int vp9_init(AVCodecContext *avctx)
+{
+ int ret;
+ if ((ret = ff_vp9_check_experimental(avctx)))
+ return ret;
+ return vpx_init(avctx, &vpx_codec_vp9_cx_algo);
}
-AVCodec libvpx_encoder = {
- "libvpx",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_VP8,
- sizeof(VP8Context),
- vp8_init,
- vp8_encode,
- vp8_free,
- NULL,
- CODEC_CAP_DELAY,
- .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
+static const AVClass class_vp9 = {
+ .class_name = "libvpx encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_libvpx_vp9_encoder = {
+ .name = "libvpx-vp9",
+ .long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_VP9,
+ .priv_data_size = sizeof(VP8Context),
+ .init = vp9_init,
+ .encode2 = vp8_encode,
+ .close = vp8_free,
+ .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
+ .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
+ .priv_class = &class_vp9,
+ .defaults = defaults,
};
+#endif /* CONFIG_LIBVPX_VP9_ENCODER */