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/*
* Copyright (C) 2010-2015 Hendrik Leppkes
* http://www.1f0.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "stdafx.h"
#include "LAVVideo.h"
static void lav_free_lavframe(void *opaque, uint8_t *data)
{
LAVFrame *frame = (LAVFrame *)opaque;
FreeLAVFrameBuffers(frame);
SAFE_CO_FREE(opaque);
}
static void lav_unref_frame(void *opaque, uint8_t *data)
{
AVBufferRef *buf = (AVBufferRef *)opaque;
av_buffer_unref(&buf);
}
static void avfilter_free_lav_buffer(LAVFrame *pFrame)
{
av_frame_free((AVFrame **)&pFrame->priv_data);
}
HRESULT CLAVVideo::Filter(LAVFrame *pFrame)
{
int ret = 0;
BOOL bFlush = pFrame->flags & LAV_FRAME_FLAG_FLUSH;
if (m_Decoder.IsInterlaced() && m_settings.DeintMode != DeintMode_Disable && m_settings.SWDeintMode == SWDeintMode_YADIF && ((bFlush && m_pFilterGraph) || pFrame->format == LAVPixFmt_YUV420 || pFrame->format == LAVPixFmt_YUV422 || pFrame->format == LAVPixFmt_NV12)) {
AVPixelFormat ff_pixfmt = (pFrame->format == LAVPixFmt_YUV420) ? AV_PIX_FMT_YUV420P : (pFrame->format == LAVPixFmt_YUV422) ? AV_PIX_FMT_YUV422P : AV_PIX_FMT_NV12;
if (!bFlush && (!m_pFilterGraph || pFrame->format != m_filterPixFmt || pFrame->width != m_filterWidth || pFrame->height != m_filterHeight)) {
DbgLog((LOG_TRACE, 10, L":Filter()(init) Initializing YADIF deinterlacing filter..."));
if (m_pFilterGraph) {
avfilter_graph_free(&m_pFilterGraph);
m_pFilterBufferSrc = nullptr;
m_pFilterBufferSink = nullptr;
}
m_filterPixFmt = pFrame->format;
m_filterWidth = pFrame->width;
m_filterHeight = pFrame->height;
char args[512];
enum AVPixelFormat pix_fmts[3];
if (ff_pixfmt == AV_PIX_FMT_NV12) {
pix_fmts[0] = AV_PIX_FMT_NV12;
pix_fmts[1] = AV_PIX_FMT_YUV420P;
} else {
pix_fmts[0] = ff_pixfmt;
pix_fmts[1] = AV_PIX_FMT_NONE;
}
pix_fmts[2] = AV_PIX_FMT_NONE;
AVFilter *buffersrc = avfilter_get_by_name("buffer");
AVFilter *buffersink = avfilter_get_by_name("buffersink");
AVFilterInOut *outputs = avfilter_inout_alloc();
AVFilterInOut *inputs = avfilter_inout_alloc();
m_pFilterGraph = avfilter_graph_alloc();
av_opt_set(m_pFilterGraph, "thread_type", "slice", AV_OPT_SEARCH_CHILDREN);
av_opt_set_int(m_pFilterGraph, "threads", FFMAX(1, av_cpu_count() / 2), AV_OPT_SEARCH_CHILDREN);
_snprintf_s(args, sizeof(args), "video_size=%dx%d:pix_fmt=%s:time_base=1/10000000:pixel_aspect=1/1", pFrame->width, pFrame->height, av_get_pix_fmt_name(ff_pixfmt));
ret = avfilter_graph_create_filter(&m_pFilterBufferSrc, buffersrc, "in", args, nullptr, m_pFilterGraph);
if (ret < 0) {
DbgLog((LOG_TRACE, 10, L"::Filter()(init) Creating the input buffer filter failed with code %d", ret));
avfilter_graph_free(&m_pFilterGraph);
goto deliver;
}
AVBufferSinkParams params;
params.pixel_fmts = pix_fmts;
ret = avfilter_graph_create_filter(&m_pFilterBufferSink, buffersink, "out", nullptr, ¶ms, m_pFilterGraph);
if (ret < 0) {
DbgLog((LOG_TRACE, 10, L"::Filter()(init) Creating the buffer sink filter failed with code %d", ret));
avfilter_free(m_pFilterBufferSrc);
m_pFilterBufferSrc = nullptr;
avfilter_graph_free(&m_pFilterGraph);
goto deliver;
}
/* Endpoints for the filter graph. */
outputs->name = av_strdup("in");
outputs->filter_ctx = m_pFilterBufferSrc;
outputs->pad_idx = 0;
outputs->next = nullptr;
inputs->name = av_strdup("out");
inputs->filter_ctx = m_pFilterBufferSink;
inputs->pad_idx = 0;
inputs->next = nullptr;
_snprintf_s(args, sizeof(args), "yadif=mode=%s:parity=auto:deint=interlaced", (m_settings.SWDeintOutput == DeintOutput_FramePerField) ? "send_field" : "send_frame");
if ((ret = avfilter_graph_parse_ptr(m_pFilterGraph, args, &inputs, &outputs, nullptr)) < 0) {
DbgLog((LOG_TRACE, 10, L"::Filter()(init) Parsing the graph failed with code %d", ret));
avfilter_graph_free(&m_pFilterGraph);
goto deliver;
}
if ((ret = avfilter_graph_config(m_pFilterGraph, nullptr)) < 0) {
DbgLog((LOG_TRACE, 10, L"::Filter()(init) Configuring the graph failed with code %d", ret));
avfilter_graph_free(&m_pFilterGraph);
goto deliver;
}
DbgLog((LOG_TRACE, 10, L":Filter()(init) YADIF Initialization complete"));
}
if (!m_pFilterGraph)
goto deliver;
AVFrame *in_frame = nullptr;
BOOL refcountedFrame = (m_Decoder.HasThreadSafeBuffers() == S_OK);
// When flushing, we feed a NULL frame
if (!bFlush) {
in_frame = av_frame_alloc();
for (int i = 0; i < 4; i++) {
in_frame->data[i] = pFrame->data[i];
in_frame->linesize[i] = (int)pFrame->stride[i];
}
in_frame->width = pFrame->width;
in_frame->height = pFrame->height;
in_frame->format = ff_pixfmt;
in_frame->pts = pFrame->rtStart;
in_frame->interlaced_frame = pFrame->interlaced;
in_frame->top_field_first = pFrame->tff;
in_frame->sample_aspect_ratio = pFrame->aspect_ratio;
if (refcountedFrame) {
AVBufferRef *pFrameBuf = av_buffer_create(nullptr, 0, lav_free_lavframe, pFrame, 0);
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get((AVPixelFormat)in_frame->format);
int planes = (in_frame->format == AV_PIX_FMT_NV12) ? 2 : desc->nb_components;
for (int i = 0; i < planes; i++) {
int h_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
int plane_size = (in_frame->height >> h_shift) * in_frame->linesize[i];
AVBufferRef *planeRef = av_buffer_ref(pFrameBuf);
in_frame->buf[i] = av_buffer_create(in_frame->data[i], plane_size, lav_unref_frame, planeRef, AV_BUFFER_FLAG_READONLY);
}
av_buffer_unref(&pFrameBuf);
}
m_FilterPrevFrame = *pFrame;
memset(m_FilterPrevFrame.data, 0, sizeof(m_FilterPrevFrame.data));
m_FilterPrevFrame.destruct = nullptr;
} else {
if (!m_FilterPrevFrame.height) // if height is not set, the frame is most likely not valid
return S_OK;
*pFrame = m_FilterPrevFrame;
}
if ((ret = av_buffersrc_write_frame(m_pFilterBufferSrc, in_frame)) < 0) {
av_frame_free(&in_frame);
goto deliver;
}
AVFrame *out_frame = av_frame_alloc();
HRESULT hrDeliver = S_OK;
while (SUCCEEDED(hrDeliver) && (av_buffersink_get_frame(m_pFilterBufferSink, out_frame) >= 0)) {
LAVFrame *outFrame = nullptr;
AllocateFrame(&outFrame);
REFERENCE_TIME rtDuration = pFrame->rtStop - pFrame->rtStart;
if (m_settings.SWDeintOutput == DeintOutput_FramePerField)
rtDuration >>= 1;
// Copy most settings over
outFrame->format = (out_frame->format == AV_PIX_FMT_YUV420P) ? LAVPixFmt_YUV420 : (out_frame->format == AV_PIX_FMT_YUV422P) ? LAVPixFmt_YUV422 : LAVPixFmt_NV12;
outFrame->bpp = pFrame->bpp;
outFrame->ext_format = pFrame->ext_format;
outFrame->avgFrameDuration = pFrame->avgFrameDuration;
outFrame->flags = pFrame->flags;
outFrame->width = out_frame->width;
outFrame->height = out_frame->height;
outFrame->aspect_ratio = out_frame->sample_aspect_ratio;
outFrame->tff = out_frame->top_field_first;
REFERENCE_TIME pts = av_rescale(out_frame->pts, m_pFilterBufferSink->inputs[0]->time_base.num * 10000000LL, m_pFilterBufferSink->inputs[0]->time_base.den);
outFrame->rtStart = pts;
outFrame->rtStop = pts + rtDuration;
for (int i = 0; i < 4; i++) {
outFrame->data[i] = out_frame->data[i];
outFrame->stride[i] = out_frame->linesize[i];
}
outFrame->destruct = avfilter_free_lav_buffer;
outFrame->priv_data = av_frame_alloc();
av_frame_move_ref((AVFrame *)outFrame->priv_data, out_frame);
hrDeliver = DeliverToRenderer(outFrame);
}
if (!refcountedFrame)
ReleaseFrame(&pFrame);
av_frame_free(&in_frame);
av_frame_free(&out_frame);
// We EOF'ed the graph, need to close it
if (bFlush) {
if (m_pFilterGraph) {
avfilter_graph_free(&m_pFilterGraph);
m_pFilterBufferSrc = nullptr;
m_pFilterBufferSink = nullptr;
}
}
return S_OK;
} else {
m_filterPixFmt = LAVPixFmt_None;
deliver:
return DeliverToRenderer(pFrame);
}
}
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