mirror of https://github.com/FFmpeg/FFmpeg.git
* commit '8a3d9ca603f4d15ecaa9ca379cbaab4ecaec8ce4': libavcodec: Add an OpenH264 encoder wrapper Conflicts: Changelog configure libavcodec/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>pull/101/head
Michael Niedermayer
10 years ago
commit
c09eeca546
6 changed files with 236 additions and 1 deletions
@ -0,0 +1,228 @@ |
||||
/*
|
||||
* OpenH264 video encoder |
||||
* Copyright (C) 2014 Martin Storsjo |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* 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. |
||||
* |
||||
* 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 FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#include <wels/codec_api.h> |
||||
#include <wels/codec_ver.h> |
||||
|
||||
#include "libavutil/attributes.h" |
||||
#include "libavutil/common.h" |
||||
#include "libavutil/opt.h" |
||||
#include "libavutil/intreadwrite.h" |
||||
#include "libavutil/mathematics.h" |
||||
|
||||
#include "avcodec.h" |
||||
#include "internal.h" |
||||
|
||||
typedef struct SVCContext { |
||||
const AVClass *av_class; |
||||
ISVCEncoder *encoder; |
||||
int slice_mode; |
||||
int loopfilter; |
||||
char *profile; |
||||
} SVCContext; |
||||
|
||||
#define OFFSET(x) offsetof(SVCContext, x) |
||||
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
||||
static const AVOption options[] = { |
||||
{ "slice_mode", "Slice mode", OFFSET(slice_mode), AV_OPT_TYPE_INT, { .i64 = SM_AUTO_SLICE }, SM_SINGLE_SLICE, SM_RESERVED, VE, "slice_mode" }, |
||||
{ "fixed", "A fixed number of slices", 0, AV_OPT_TYPE_CONST, { .i64 = SM_FIXEDSLCNUM_SLICE }, 0, 0, VE, "slice_mode" }, |
||||
{ "rowmb", "One slice per row of macroblocks", 0, AV_OPT_TYPE_CONST, { .i64 = SM_ROWMB_SLICE }, 0, 0, VE, "slice_mode" }, |
||||
{ "auto", "Automatic number of slices according to number of threads", 0, AV_OPT_TYPE_CONST, { .i64 = SM_AUTO_SLICE }, 0, 0, VE, "slice_mode" }, |
||||
{ "loopfilter", "Enable loop filter", OFFSET(loopfilter), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE }, |
||||
{ "profile", "Set profile restrictions", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE }, |
||||
{ NULL } |
||||
}; |
||||
|
||||
static const AVClass class = { |
||||
"libopenh264enc", av_default_item_name, options, LIBAVUTIL_VERSION_INT |
||||
}; |
||||
|
||||
static av_cold int svc_encode_close(AVCodecContext *avctx) |
||||
{ |
||||
SVCContext *s = avctx->priv_data; |
||||
|
||||
if (s->encoder) |
||||
WelsDestroySVCEncoder(s->encoder); |
||||
return 0; |
||||
} |
||||
|
||||
static av_cold int svc_encode_init(AVCodecContext *avctx) |
||||
{ |
||||
SVCContext *s = avctx->priv_data; |
||||
SEncParamExt param = { 0 }; |
||||
int err = AVERROR_UNKNOWN; |
||||
av_unused OpenH264Version libver; |
||||
(void)g_strCodecVer; // Avoid warnings due to unused static members from codec_ver.h
|
||||
|
||||
// Mingw GCC < 4.7 on x86_32 uses an incorrect/buggy ABI for the WelsGetCodecVersion
|
||||
// function (for functions returning larger structs), thus skip the check in those
|
||||
// configurations.
|
||||
#if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7) |
||||
libver = WelsGetCodecVersion(); |
||||
if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) { |
||||
av_log(avctx, AV_LOG_ERROR, "Incorrect library version loaded\n"); |
||||
return AVERROR(EINVAL); |
||||
} |
||||
#endif |
||||
|
||||
if (WelsCreateSVCEncoder(&s->encoder)) { |
||||
av_log(avctx, AV_LOG_ERROR, "Unable to create encoder\n"); |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
|
||||
(*s->encoder)->GetDefaultParams(s->encoder, ¶m); |
||||
|
||||
param.fMaxFrameRate = avctx->time_base.den / avctx->time_base.num; |
||||
param.iPicWidth = avctx->width; |
||||
param.iPicHeight = avctx->height; |
||||
param.iTargetBitrate = avctx->bit_rate; |
||||
param.iMaxBitrate = FFMAX(avctx->rc_max_rate, avctx->bit_rate); |
||||
param.iRCMode = RC_QUALITY_MODE; |
||||
param.iTemporalLayerNum = 1; |
||||
param.iSpatialLayerNum = 1; |
||||
param.bEnableDenoise = 0; |
||||
param.bEnableBackgroundDetection = 1; |
||||
param.bEnableAdaptiveQuant = 1; |
||||
param.bEnableFrameSkip = 0; |
||||
param.bEnableLongTermReference = 0; |
||||
param.iLtrMarkPeriod = 30; |
||||
param.uiIntraPeriod = avctx->gop_size; |
||||
param.bEnableSpsPpsIdAddition = 0; |
||||
param.bPrefixNalAddingCtrl = 0; |
||||
param.iLoopFilterDisableIdc = !s->loopfilter; |
||||
param.iEntropyCodingModeFlag = 0; |
||||
param.iMultipleThreadIdc = avctx->thread_count; |
||||
if (s->profile && !strcmp(s->profile, "main")) |
||||
param.iEntropyCodingModeFlag = 1; |
||||
else if (!s->profile && avctx->coder_type == FF_CODER_TYPE_AC) |
||||
param.iEntropyCodingModeFlag = 1; |
||||
|
||||
param.sSpatialLayers[0].iVideoWidth = param.iPicWidth; |
||||
param.sSpatialLayers[0].iVideoHeight = param.iPicHeight; |
||||
param.sSpatialLayers[0].fFrameRate = param.fMaxFrameRate; |
||||
param.sSpatialLayers[0].iSpatialBitrate = param.iTargetBitrate; |
||||
param.sSpatialLayers[0].iMaxSpatialBitrate = param.iMaxBitrate; |
||||
|
||||
if (avctx->slices > 1) |
||||
s->slice_mode = SM_FIXEDSLCNUM_SLICE; |
||||
param.sSpatialLayers[0].sSliceCfg.uiSliceMode = s->slice_mode; |
||||
param.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = avctx->slices; |
||||
|
||||
if ((*s->encoder)->InitializeExt(s->encoder, ¶m) != cmResultSuccess) { |
||||
av_log(avctx, AV_LOG_ERROR, "Initialize failed\n"); |
||||
goto fail; |
||||
} |
||||
|
||||
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) { |
||||
SFrameBSInfo fbi = { 0 }; |
||||
int i, size = 0; |
||||
(*s->encoder)->EncodeParameterSets(s->encoder, &fbi); |
||||
for (i = 0; i < fbi.sLayerInfo[0].iNalCount; i++) |
||||
size += fbi.sLayerInfo[0].pNalLengthInByte[i]; |
||||
avctx->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE); |
||||
if (!avctx->extradata) { |
||||
err = AVERROR(ENOMEM); |
||||
goto fail; |
||||
} |
||||
avctx->extradata_size = size; |
||||
memcpy(avctx->extradata, fbi.sLayerInfo[0].pBsBuf, size); |
||||
} |
||||
|
||||
return 0; |
||||
|
||||
fail: |
||||
svc_encode_close(avctx); |
||||
return err; |
||||
} |
||||
|
||||
static int svc_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, |
||||
const AVFrame *frame, int *got_packet) |
||||
{ |
||||
SVCContext *s = avctx->priv_data; |
||||
SFrameBSInfo fbi = { 0 }; |
||||
int i, ret; |
||||
int encoded; |
||||
SSourcePicture sp = { 0 }; |
||||
int size = 0, layer, first_layer = 0; |
||||
int layer_size[MAX_LAYER_NUM_OF_FRAME] = { 0 }; |
||||
|
||||
sp.iColorFormat = videoFormatI420; |
||||
for (i = 0; i < 3; i++) { |
||||
sp.iStride[i] = frame->linesize[i]; |
||||
sp.pData[i] = frame->data[i]; |
||||
} |
||||
sp.iPicWidth = avctx->width; |
||||
sp.iPicHeight = avctx->height; |
||||
|
||||
encoded = (*s->encoder)->EncodeFrame(s->encoder, &sp, &fbi); |
||||
if (encoded != cmResultSuccess) { |
||||
av_log(avctx, AV_LOG_ERROR, "EncodeFrame failed\n"); |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
if (fbi.eFrameType == videoFrameTypeSkip) { |
||||
av_log(avctx, AV_LOG_DEBUG, "frame skipped\n"); |
||||
return 0; |
||||
} |
||||
first_layer = 0; |
||||
// Normal frames are returned with one single layers, while IDR
|
||||
// frames have two layers, where the first layer contains the SPS/PPS.
|
||||
// If using global headers, don't include the SPS/PPS in the returned
|
||||
// packet - thus, only return one layer.
|
||||
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) |
||||
first_layer = fbi.iLayerNum - 1; |
||||
|
||||
for (layer = first_layer; layer < fbi.iLayerNum; layer++) { |
||||
for (i = 0; i < fbi.sLayerInfo[layer].iNalCount; i++) |
||||
layer_size[layer] += fbi.sLayerInfo[layer].pNalLengthInByte[i]; |
||||
size += layer_size[layer]; |
||||
} |
||||
av_log(NULL, AV_LOG_DEBUG, "%d slices\n", fbi.sLayerInfo[fbi.iLayerNum - 1].iNalCount); |
||||
|
||||
if ((ret = ff_alloc_packet(avpkt, size))) { |
||||
av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n"); |
||||
return ret; |
||||
} |
||||
size = 0; |
||||
for (layer = first_layer; layer < fbi.iLayerNum; layer++) { |
||||
memcpy(avpkt->data + size, fbi.sLayerInfo[layer].pBsBuf, layer_size[layer]); |
||||
size += layer_size[layer]; |
||||
} |
||||
avpkt->pts = frame->pts; |
||||
if (fbi.eFrameType == videoFrameTypeIDR) |
||||
avpkt->flags |= AV_PKT_FLAG_KEY; |
||||
*got_packet = 1; |
||||
return 0; |
||||
} |
||||
|
||||
AVCodec ff_libopenh264_encoder = { |
||||
.name = "libopenh264", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_H264, |
||||
.priv_data_size = sizeof(SVCContext), |
||||
.init = svc_encode_init, |
||||
.encode2 = svc_encode_frame, |
||||
.close = svc_encode_close, |
||||
.capabilities = CODEC_CAP_AUTO_THREADS, |
||||
.pix_fmts = (const enum PixelFormat[]){ AV_PIX_FMT_YUV420P, |
||||
AV_PIX_FMT_NONE }, |
||||
.long_name = NULL_IF_CONFIG_SMALL("OpenH264"), |
||||
.priv_class = &class, |
||||
}; |
||||
Loading…
Reference in new issue