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Revert "media: add filters"

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This reverts commit ea2933d4ac.

Change-Id: I624c07255f60186a0d1e6610a58956775f91b342
This commit is contained in:
Adrien Béraud
2018-05-09 13:37:52 -05:00
parent e34f3ca7bc
commit 1e6a471687
9 changed files with 6 additions and 730 deletions
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2
configure.ac
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@ -449,8 +449,6 @@ PKG_CHECK_MODULES(LIBAVFORMAT, libavformat >= 56.40.101,, AC_MSG_ERROR([Missing
PKG_CHECK_MODULES(LIBAVDEVICE, libavdevice >= 56.4.100,, AC_MSG_ERROR([Missing libavdevice development files]))
PKG_CHECK_MODULES(LIBAVFILTER, libavfilter >= 5.40.101,, AC_MSG_ERROR([Missing libavfilter development files]))
PKG_CHECK_MODULES(LIBSWSCALE, libswscale >= 3.1.101,, AC_MSG_ERROR([Missing libswscale development files]))
dnl Video is default-enabled

3
contrib/src/ffmpeg/rules.mak
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@ -3,7 +3,7 @@ FFMPEG_URL := https://git.ffmpeg.org/gitweb/ffmpeg.git/snapshot/$(FFMPEG_HASH).t
PKGS+=ffmpeg
ifeq ($(call need_pkg,"libavutil >= 55.75.100 libavcodec >= 57.106.101 libavformat >= 57.82.100 libavdevice >= 57.8.101 libavfilter >= 6.105.100 libswscale >= 4.7.103"),)
ifeq ($(call need_pkg,"libavutil >= 55.75.100 libavcodec >= 57.106.101 libavformat >= 57.82.100 libavdevice >= 57.8.101 libswscale >= 4.7.103"),)
PKGS_FOUND += ffmpeg
endif
@ -21,7 +21,6 @@ FFMPEGCONF += \
--enable-swscale \
--enable-protocols \
--enable-bsfs \
--enable-filters \
--disable-programs
#enable muxers/demuxers

12
src/media/Makefile.am
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@ -18,8 +18,7 @@ libmedia_la_SOURCES = \
media_codec.cpp \
system_codec_container.cpp \
srtp.c \
recordable.cpp \
media_filter.cpp
recordable.cpp
noinst_HEADERS = \
rtp_session.h \
@ -35,8 +34,7 @@ noinst_HEADERS = \
system_codec_container.h \
srtp.h \
recordable.h \
decoder_finder.h \
media_filter.h
decoder_finder.h
libmedia_la_LIBADD = \
./audio/libaudio.la
@ -46,12 +44,12 @@ libmedia_la_libADD = \
./video/libvideo.la
endif
libmedia_la_LDFLAGS = @LIBAVCODEC_LIBS@ @LIBAVFORMAT_LIBS@ @LIBAVDEVICE_LIBS@ @LIBAVFILTER_LIBS@ @LIBSWSCALE_LIBS@ @LIBAVUTIL_LIBS@
libmedia_la_LDFLAGS = @LIBAVCODEC_LIBS@ @LIBAVFORMAT_LIBS@ @LIBAVDEVICE_LIBS@ @LIBSWSCALE_LIBS@ @LIBAVUTIL_LIBS@
if HAVE_WIN32
libmedia_la_LDFLAGS += -lws2_32 -lwsock32 -lshlwapi
endif
AM_CFLAGS=@LIBAVCODEC_CFLAGS@ @LIBAVFORMAT_CFLAGS@ @LIBAVDEVICE_CFLAGS@ @LIBAVFILTER_CFLAGS@ @LIBSWSCALE_CFLAGS@
AM_CFLAGS=@LIBAVCODEC_CFLAGS@ @LIBAVFORMAT_CFLAGS@ @LIBAVDEVICE_CFLAGS@ @LIBSWSCALE_CFLAGS@
AM_CXXFLAGS=@LIBAVCODEC_CFLAGS@ @LIBAVFORMAT_CFLAGS@ @LIBAVDEVICE_CFLAGS@ @LIBAVFILTER_CFLAGS@ @LIBSWSCALE_CFLAGS@
AM_CXXFLAGS=@LIBAVCODEC_CFLAGS@ @LIBAVFORMAT_CFLAGS@ @LIBAVDEVICE_CFLAGS@ @LIBSWSCALE_CFLAGS@

1
src/media/libav_deps.h
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@ -26,7 +26,6 @@
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavfilter/avfilter.h>
#include <libavformat/avformat.h>
#include <libavdevice/avdevice.h>
#include <libswscale/swscale.h>

3
src/media/libav_utils.cpp
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@ -141,9 +141,6 @@ init_once()
#endif
avdevice_register_all();
avformat_network_init();
#if LIBAVFILTER_VERSION_INT < AV_VERSION_INT(7, 13, 100)
avfilter_register_all();
#endif
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(58, 9, 100)
av_lockmgr_register(avcodecManageMutex);

270
src/media/media_filter.cpp
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@ -1,270 +0,0 @@
/*
* Copyright (C) 2018 Savoir-faire Linux Inc.
*
* Author: Philippe Gorley <philippe.gorley@savoirfairelinux.com>
*
* 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 3 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 "libav_deps.h" // MUST BE INCLUDED FIRST
#include "logger.h"
#include "media_filter.h"
extern "C" {
#include <libavfilter/buffersink.h>
#include <libavfilter/buffersrc.h>
}
#include <functional>
#include <memory>
#include <sstream>
namespace ring {
MediaFilter::MediaFilter()
{}
MediaFilter::~MediaFilter()
{
clean();
}
std::string
MediaFilter::getFilterDesc() const
{
return desc_;
}
int
MediaFilter::initialize(const std::string& filterDesc, MediaFilterParameters mfp)
{
std::vector<MediaFilterParameters> mfps;
mfps.push_back(mfp);
desc_ = filterDesc;
return initialize(desc_, mfps);
}
int
MediaFilter::initialize(const std::string& filterDesc, std::vector<MediaFilterParameters> mfps)
{
int ret = 0;
desc_ = filterDesc;
graph_ = avfilter_graph_alloc();
if (!graph_)
return fail("Failed to allocate filter graph", AVERROR(ENOMEM));
AVFilterInOut* in;
AVFilterInOut* out;
if ((ret = avfilter_graph_parse2(graph_, desc_.c_str(), &in, &out)) < 0)
return fail("Failed to parse filter graph", ret);
using AVFilterInOutPtr = std::unique_ptr<AVFilterInOut, std::function<void(AVFilterInOut*)>>;
AVFilterInOutPtr outputs(out, [](AVFilterInOut* f){ avfilter_inout_free(&f); });
AVFilterInOutPtr inputs(in, [](AVFilterInOut* f){ avfilter_inout_free(&f); });
if (outputs && outputs->next)
return fail("Filters with multiple outputs are not supported", AVERROR(ENOTSUP));
if ((ret = initOutputFilter(outputs.get())) < 0)
return fail("Failed to create output for filter graph", ret);
// make sure inputs linked list is the same size as mfps
size_t count = 0;
AVFilterInOut* dummyInput = inputs.get();
while (dummyInput && ++count) // increment count before evaluating its value
dummyInput = dummyInput->next;
if (count != mfps.size())
return fail("Size mismatch between number of inputs in filter graph and input parameter array",
AVERROR(EINVAL));
int index = 0;
for (AVFilterInOut* current = inputs.get(); current; current = current->next)
if ((ret = initInputFilter(current, mfps[index++])) < 0)
return fail("Failed to create input for filter graph", ret);
if ((ret = avfilter_graph_config(graph_, nullptr)) < 0)
return fail("Failed to configure filter graph", ret);
RING_DBG() << "Filter graph initialized with: " << desc_;
initialized_ = true;
return 0;
}
int
MediaFilter::feedInput(AVFrame* frame)
{
int ret = 0;
if (inputs_.size() == 0)
return fail("No inputs found", AVERROR(EINVAL));
auto filterCtx = inputs_[0];
if (!filterCtx)
return fail("No inputs found", AVERROR(EINVAL));
if ((ret = av_buffersrc_write_frame(filterCtx, frame)) < 0)
return fail("Could not pass frame to filters", ret);
return 0;
}
int
MediaFilter::feedInput(AVFrame* frame, std::string inputName)
{
int ret = 0;
for (size_t i = 0; i < inputs_.size(); ++i) {
auto filterCtx = inputs_[i];
int requested = av_buffersrc_get_nb_failed_requests(filterCtx);
if (requested > 0)
RING_WARN() << inputNames_[i] << " filter needs more input to produce output";
if (inputNames_[i] != inputName)
continue;
if ((ret = av_buffersrc_write_frame(filterCtx, frame)) < 0)
return fail("Could not pass frame to filters", ret);
else
return 0;
}
std::stringstream ss;
ss << "Specified filter (" << inputName << ") not found";
return fail(ss.str(), AVERROR(EINVAL));
}
AVFrame*
MediaFilter::readOutput()
{
int ret = 0;
AVFrame* frame = av_frame_alloc();
ret = av_buffersink_get_frame_flags(output_, frame, 0);
if (ret >= 0) {
return frame;
} else if (ret == AVERROR(EAGAIN)) {
RING_WARN() << "No frame available in sink: " << output_->filter->name
<< " (" << output_->name << "): send more input";
} else if (ret == AVERROR_EOF) {
RING_WARN() << "Filters have reached EOF, no more frames will be output";
} else {
fail("Error occurred while pulling from filter graph", ret);
}
av_frame_free(&frame);
return NULL;
}
int
MediaFilter::initOutputFilter(AVFilterInOut* out)
{
int ret = 0;
const AVFilter* buffersink;
AVFilterContext* buffersinkCtx = nullptr;
AVMediaType mediaType = avfilter_pad_get_type(out->filter_ctx->input_pads, out->pad_idx);
if (mediaType == AVMEDIA_TYPE_VIDEO)
buffersink = avfilter_get_by_name("buffersink");
else
buffersink = avfilter_get_by_name("abuffersink");
if ((ret = avfilter_graph_create_filter(&buffersinkCtx, buffersink, "out",
nullptr, nullptr, graph_)) < 0) {
avfilter_free(buffersinkCtx);
return fail("Failed to create buffer sink", ret);
}
if ((ret = avfilter_link(out->filter_ctx, out->pad_idx, buffersinkCtx, 0)) < 0) {
avfilter_free(buffersinkCtx);
return fail("Could not link buffer sink to graph", ret);
}
output_ = buffersinkCtx;
return ret;
}
int
MediaFilter::initInputFilter(AVFilterInOut* in, MediaFilterParameters mfp)
{
int ret = 0;
bool simple = !in->name; // simple filters don't require the graph input to be labelled
AVBufferSrcParameters* params = av_buffersrc_parameters_alloc();
if (!params)
return -1;
const AVFilter* buffersrc;
AVMediaType mediaType = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
params->format = mfp.format;
params->time_base.num = mfp.timeBase.numerator();
params->time_base.den = mfp.timeBase.denominator();
if (mediaType == AVMEDIA_TYPE_VIDEO) {
params->width = mfp.width;
params->height = mfp.height;
params->sample_aspect_ratio.num = mfp.aspectRatio.numerator();
params->sample_aspect_ratio.den = mfp.aspectRatio.denominator();
params->frame_rate.num = mfp.frameRate.numerator();
params->frame_rate.den = mfp.frameRate.denominator();
buffersrc = avfilter_get_by_name("buffer");
} else {
params->sample_rate = mfp.sampleRate;
params->channel_layout = av_get_default_channel_layout(mfp.nbChannels);
buffersrc = avfilter_get_by_name("abuffer");
}
AVFilterContext* buffersrcCtx = nullptr;
if (buffersrc) {
char name[128];
if (simple)
snprintf(name, sizeof(name), "buffersrc");
else
snprintf(name, sizeof(name), "buffersrc_%s_%d", in->name, in->pad_idx);
buffersrcCtx = avfilter_graph_alloc_filter(graph_, buffersrc, name);
}
if (!buffersrcCtx) {
av_free(params);
return fail("Failed to allocate filter graph input", AVERROR(ENOMEM));
}
ret = av_buffersrc_parameters_set(buffersrcCtx, params);
av_free(params);
if (ret < 0)
return fail("Failed to set filter graph input parameters", ret);
if ((ret = avfilter_init_str(buffersrcCtx, nullptr)) < 0)
return fail("Failed to initialize buffer source", ret);
if ((ret = avfilter_link(buffersrcCtx, 0, in->filter_ctx, in->pad_idx)) < 0)
return fail("Failed to link buffer source to graph", ret);
inputs_.push_back(buffersrcCtx);
if (simple)
inputNames_.push_back("default");
else
inputNames_.push_back(in->name);
return ret;
}
int
MediaFilter::fail(std::string msg, int err)
{
if (!msg.empty())
RING_ERR() << msg << ": " << libav_utils::getError(err);
failed_ = true;
//clean();
return err;
}
void
MediaFilter::clean()
{
avfilter_graph_free(&graph_);
}
} // namespace ring

199
src/media/media_filter.h
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@ -1,199 +0,0 @@
/*
* Copyright (C) 2018 Savoir-faire Linux Inc.
*
* Author: Philippe Gorley <philippe.gorley@savoirfairelinux.com>
*
* 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 3 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.
*/
#pragma once
#include "config.h"
#include "noncopyable.h"
#include "rational.h"
#include <map>
#include <string>
#include <vector>
class AVFilterContext;
class AVFilterGraph;
namespace ring {
/**
* Contains necessary parameters for a filter graph input.
*/
struct MediaFilterParameters {
/* Video and audio */
int format {-1}; // Default is an invalid FFmpeg format (both audio and video)
rational<int> timeBase;
/* Video */
int width {0};
int height {0};
rational<int> aspectRatio;
rational<int> frameRate;
MediaFilterParameters(int fmt, rational<int> tb, int w, int h, rational<int> sar, rational<int> fr)
: format(fmt)
, timeBase(tb)
, width(w)
, height(h)
, aspectRatio(sar)
, frameRate(fr)
{}
/* Audio */
int sampleRate {0};
int nbChannels {0};
MediaFilterParameters(int fmt, rational<int> tb, int sr, int channels)
: format(fmt)
, timeBase(tb)
, sampleRate(sr)
, nbChannels(channels)
{}
};
/**
* Provides access to libavfilter.
*
* Can be used for simple filters (1 input, 1 output), or complex filters (multiple inputs, 1 output).
* Multiple outputs are not supported. They add complexity for little gain.
*
* For information on how to write a filter graph description, see:
* https://ffmpeg.org/ffmpeg-filters.html
* http://trac.ffmpeg.org/wiki/FilteringGuide
*
* For complex filters, it is required to name each filter graph input. These names are used to feed the correct input.
* It is the same name that will be passed as second argument to feedInput(AVFrame*, std::string). This is not required
* for simple filters, as there is only one input.
*
* Simple filter: "scale=320:240"
* Scales the input to 320x240. No need to specify input names.
*
* Complex filter: "[in1] scale=iw/4:ih/4 [mid]; [in2] [mid] overlay=main_w-overlay_w-10:main_h-overlay_h-10"
* in1 will be scaled to 1/16th its size and placed over in2 in the bottom right corner. When feeding frames to
* the filter, you need to specify whether the frame is destined for in1 or in2.
*/
class MediaFilter {
public:
MediaFilter();
~MediaFilter();
/**
* Returns the current filter graph string.
*/
std::string getFilterDesc() const;
/**
* Initializes the filter graph with 1 input.
*
* NOTE This method will fail if @filterDesc has more than 1 input.
* NOTE Wraps mfp in a vector and calls initialize.
*/
int initialize(const std::string& filterDesc, MediaFilterParameters mfp);
/**
* Initializes the filter graph with one or more inputs and one output. Returns a negative code on error.
*
* NOTE @mfps must be in the same order as the inputs in @filterDesc
*/
int initialize(const std::string& filterDesc, std::vector<MediaFilterParameters> mfps);
/**
* Give the filter graph an input frame. Caller is responsible for freeing the frame.
*
* NOTE This is for filters with 1 input.
*/
int feedInput(AVFrame* frame);
/**
* Give the specified source filter an input frame. Caller is responsible for freeing the frame.
*
* NOTE Will fail if @inputName is not found in the graph.
*/
int feedInput(AVFrame* frame, std::string inputName);
/**
* Pull a frame from the filter graph. Caller owns the frame reference.
*
* Returns AVERROR(EAGAIN) if filter graph requires more input.
*/
AVFrame* readOutput(); // frame reference belongs to caller
private:
NON_COPYABLE(MediaFilter);
/**
* Initializes output of filter graph.
*/
int initOutputFilter(AVFilterInOut* out);
/**
* Initializes an input of filter graph.
*/
int initInputFilter(AVFilterInOut* in, MediaFilterParameters mfp);
/**
* Convenience method that prints @msg and returns err.
*
* NOTE @msg should not be null.
*/
int fail(std::string msg, int err);
/**
* Frees resources used by MediaFilter.
*/
void clean();
/**
* Filter graph pointer.
*/
AVFilterGraph* graph_ = nullptr;
/**
* Filter graph output. Corresponds to a buffersink/abuffersink filter.
*/
AVFilterContext* output_;
/**
* List of filter graph inputs. Each corresponds to a buffer/abuffer filter.
*/
std::vector<AVFilterContext*> inputs_;
/**
* List of filter graph input names. Same order as @inputs_.
*/
std::vector<std::string> inputNames_;
/**
* Filter graph string.
*/
std::string desc_ {};
/**
* Flag to know whether or not the filter graph was initialized.
*/
bool initialized_ {false};
/**
* Flag to know whether or not there was a failure during initialization or processing.
*/
bool failed_ {false};
};
}; // namespace ring

6
test/unitTest/Makefile.am
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@ -61,10 +61,4 @@ ut_string_utils_SOURCES = string_utils/testString_utils.cpp
check_PROGRAMS += ut_video_input
ut_video_input_SOURCES = media/video/testVideo_input.cpp
#
# media_filter
#
check_PROGRAMS += ut_media_filter
ut_media_filter_SOURCES = media/test_media_filter.cpp
TESTS = $(check_PROGRAMS)

240
test/unitTest/media/test_media_filter.cpp
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@ -1,240 +0,0 @@
/*
* Copyright (C) 2018 Savoir-faire Linux Inc.
*
* Author: Philippe Gorley <philippe.gorley@savoirfairelinux.com>
*
* 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 3 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 <cppunit/TestAssert.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include "dring.h"
#include "libav_deps.h"
#include "media_filter.h"
#include "../../test_runner.h"
namespace ring { namespace test {
class MediaFilterTest : public CppUnit::TestFixture {
public:
static std::string name() { return "media_filter"; }
void setUp();
void tearDown();
private:
void testSimpleVideoFilter();
void testSimpleAudioFilter();
void testComplexVideoFilter();
CPPUNIT_TEST_SUITE(MediaFilterTest);
CPPUNIT_TEST(testSimpleVideoFilter);
CPPUNIT_TEST(testSimpleAudioFilter);
CPPUNIT_TEST(testComplexVideoFilter);
CPPUNIT_TEST_SUITE_END();
std::unique_ptr<MediaFilter> filter_;
AVFrame* frame_ = nullptr;
AVFrame* extra_ = nullptr; // used for filters with multiple inputs
};
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION(MediaFilterTest, MediaFilterTest::name());
void
MediaFilterTest::setUp()
{
DRing::init(DRing::InitFlag(DRing::DRING_FLAG_DEBUG | DRing::DRING_FLAG_CONSOLE_LOG));
libav_utils::ring_avcodec_init();
filter_.reset(new MediaFilter);
}
void
MediaFilterTest::tearDown()
{
av_frame_free(&frame_);
av_frame_free(&extra_);
DRing::fini();
}
static void
fill_yuv_image(uint8_t *data[4], int linesize[4], int width, int height, int frame_index)
{
int x, y;
/* Y */
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
data[0][y * linesize[0] + x] = x + y + frame_index * 3;
/* Cb and Cr */
for (y = 0; y < height / 2; y++) {
for (x = 0; x < width / 2; x++) {
data[1][y * linesize[1] + x] = 128 + y + frame_index * 2;
data[2][y * linesize[2] + x] = 64 + x + frame_index * 5;
}
}
}
static void
fill_samples(uint16_t* samples, int sampleRate, int nbSamples, int nbChannels, float tone)
{
const constexpr float pi = 3.14159265358979323846264338327950288; // M_PI
const float tincr = 2 * pi * tone / sampleRate;
float t = 0;
for (int i = 0; i < 200; ++i) {
for (int j = 0; j < nbSamples; ++j) {
samples[2 * j] = static_cast<int>(sin(t) * 10000);
for (int k = 1; k < nbChannels; ++k) {
samples[2 * j + k] = samples[2 * j];
}
t += tincr;
}
}
}
void
MediaFilterTest::testSimpleVideoFilter()
{
std::string filterSpec = "scale=200x100";
// constants
const constexpr int width = 320;
const constexpr int height = 240;
const constexpr AVPixelFormat format = AV_PIX_FMT_YUV420P;
// prepare video frame
frame_ = av_frame_alloc();
frame_->format = format;
frame_->width = width;
frame_->height = height;
// construct the filter parameters
rational<int> one = rational<int>(1);
auto params = MediaFilterParameters(format, one, width, height, one, one);
// allocate and fill frame buffers
CPPUNIT_ASSERT(av_frame_get_buffer(frame_, 32) >= 0);
fill_yuv_image(frame_->data, frame_->linesize, frame_->width, frame_->height, 0);
// prepare filter
CPPUNIT_ASSERT(filter_->initialize(filterSpec, params) >= 0);
// apply filter
CPPUNIT_ASSERT(filter_->feedInput(frame_) >= 0);
frame_ = filter_->readOutput();
CPPUNIT_ASSERT(frame_);
// check if the filter worked
CPPUNIT_ASSERT(frame_->width == 200 && frame_->height == 100);
}
void
MediaFilterTest::testSimpleAudioFilter()
{
std::string filterSpec = "aformat=sample_fmts=u8";
// constants
const constexpr int nbSamples = 100;
const constexpr int64_t channelLayout = AV_CH_LAYOUT_STEREO;
const constexpr int sampleRate = 44100;
const constexpr enum AVSampleFormat format = AV_SAMPLE_FMT_S16;
// prepare audio frame
frame_ = av_frame_alloc();
frame_->format = format;
frame_->channel_layout = channelLayout;
frame_->nb_samples = nbSamples;
frame_->sample_rate = sampleRate;
frame_->channels = av_get_channel_layout_nb_channels(channelLayout);
// construct the filter parameters
auto params = MediaFilterParameters(format, rational<int>(1, 1), sampleRate, frame_->channels);
// allocate and fill frame buffers
CPPUNIT_ASSERT(av_frame_get_buffer(frame_, 0) >= 0);
fill_samples(reinterpret_cast<uint16_t*>(frame_->data[0]), sampleRate, nbSamples, frame_->channels, 440.0);
// prepare filter
CPPUNIT_ASSERT(filter_->initialize(filterSpec, params) >= 0);
// apply filter
CPPUNIT_ASSERT(filter_->feedInput(frame_) >= 0);
frame_ = filter_->readOutput();
CPPUNIT_ASSERT(frame_);
// check if the filter worked
CPPUNIT_ASSERT(frame_->format == AV_SAMPLE_FMT_U8);
}
void
MediaFilterTest::testComplexVideoFilter()
{
std::string filterSpec = "[main] [top] overlay=main_w-overlay_w-10:main_h-overlay_h-10";
std::string main = "main";
std::string top = "top";
// constants
const constexpr int width1 = 320;
const constexpr int height1 = 240;
const constexpr int width2 = 30;
const constexpr int height2 = 30;
const constexpr AVPixelFormat format = AV_PIX_FMT_YUV420P;
// prepare video frame
frame_ = av_frame_alloc();
frame_->format = format;
frame_->width = width1;
frame_->height = height1;
extra_ = av_frame_alloc();
extra_->format = format;
extra_->width = width2;
extra_->height = height2;
// construct the filter parameters
rational<int> one = rational<int>(1);
auto params1 = MediaFilterParameters(format, one, width1, height1, one, one);
auto params2 = MediaFilterParameters(format, one, width2, height2, one, one);
// allocate and fill frame buffers
CPPUNIT_ASSERT(av_frame_get_buffer(frame_, 32) >= 0);
fill_yuv_image(frame_->data, frame_->linesize, frame_->width, frame_->height, 0);
CPPUNIT_ASSERT(av_frame_get_buffer(extra_, 32) >= 0);
fill_yuv_image(extra_->data, extra_->linesize, extra_->width, extra_->height, 0);
// prepare filter
auto vec = std::vector<MediaFilterParameters>();
vec.push_back(params1);
vec.push_back(params2);
CPPUNIT_ASSERT(filter_->initialize(filterSpec, vec) >= 0);
// apply filter
CPPUNIT_ASSERT(filter_->feedInput(frame_, main) >= 0);
CPPUNIT_ASSERT(filter_->feedInput(extra_, top) >= 0);
av_frame_free(&frame_);
av_frame_free(&extra_);
frame_ = filter_->readOutput();
CPPUNIT_ASSERT(frame_);
// check if the filter worked
CPPUNIT_ASSERT(frame_->width == width1 && frame_->height == height1);
}
}} // namespace ring::test
RING_TEST_RUNNER(ring::test::MediaFilterTest::name());