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Update alffplay to support newer ffmpeg versions

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This commit is contained in:
Chris Robinson 2022-08-20 20:59:15 -07:00
parent df33746571
commit 6815926cc5
3 changed files with 148 additions and 139 deletions
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20
CMakeLists.txt
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@ -1681,24 +1681,24 @@ if(ALSOFT_EXAMPLES)
set(FFVER_OK FALSE)
if(FFMPEG_FOUND)
set(FFVER_OK TRUE)
if(AVFORMAT_VERSION VERSION_LESS "57.56.101")
message(STATUS "libavformat is too old! (${AVFORMAT_VERSION}, wanted 57.56.101)")
if(AVFORMAT_VERSION VERSION_LESS "59.27.100")
message(STATUS "libavformat is too old! (${AVFORMAT_VERSION}, wanted 59.27.100)")
set(FFVER_OK FALSE)
endif()
if(AVCODEC_VERSION VERSION_LESS "57.64.101")
message(STATUS "libavcodec is too old! (${AVCODEC_VERSION}, wanted 57.64.101)")
if(AVCODEC_VERSION VERSION_LESS "59.37.100")
message(STATUS "libavcodec is too old! (${AVCODEC_VERSION}, wanted 59.37.100)")
set(FFVER_OK FALSE)
endif()
if(AVUTIL_VERSION VERSION_LESS "55.34.101")
message(STATUS "libavutil is too old! (${AVUTIL_VERSION}, wanted 55.34.101)")
if(AVUTIL_VERSION VERSION_LESS "57.28.100")
message(STATUS "libavutil is too old! (${AVUTIL_VERSION}, wanted 57.28.100)")
set(FFVER_OK FALSE)
endif()
if(SWSCALE_VERSION VERSION_LESS "4.2.100")
message(STATUS "libswscale is too old! (${SWSCALE_VERSION}, wanted 4.2.100)")
if(SWSCALE_VERSION VERSION_LESS "6.7.100")
message(STATUS "libswscale is too old! (${SWSCALE_VERSION}, wanted 6.7.100)")
set(FFVER_OK FALSE)
endif()
if(SWRESAMPLE_VERSION VERSION_LESS "2.3.100")
message(STATUS "libswresample is too old! (${SWRESAMPLE_VERSION}, wanted 2.3.100)")
if(SWRESAMPLE_VERSION VERSION_LESS "4.7.100")
message(STATUS "libswresample is too old! (${SWRESAMPLE_VERSION}, wanted 4.7.100)")
set(FFVER_OK FALSE)
endif()
endif()

18
cmake/FindFFmpeg.cmake
View File

@ -80,22 +80,8 @@ macro(find_component _component _pkgconfig _library _header)
${PC_LIB${_component}_LIBRARY_DIRS}
)
STRING(REGEX REPLACE "/.*" "/version.h" _ver_header ${_header})
if(EXISTS "${${_component}_INCLUDE_DIRS}/${_ver_header}")
file(STRINGS "${${_component}_INCLUDE_DIRS}/${_ver_header}" version_str REGEX "^#define[\t ]+LIB${_component}_VERSION_M.*")
string(REGEX REPLACE "^.*LIB${_component}_VERSION_MAJOR[\t ]+([0-9]*).*$" "\\1" version_maj "${version_str}")
string(REGEX REPLACE "^.*LIB${_component}_VERSION_MINOR[\t ]+([0-9]*).*$" "\\1" version_min "${version_str}")
string(REGEX REPLACE "^.*LIB${_component}_VERSION_MICRO[\t ]+([0-9]*).*$" "\\1" version_mic "${version_str}")
unset(version_str)
set(${_component}_VERSION "${version_maj}.${version_min}.${version_mic}" CACHE STRING "The ${_component} version number.")
unset(version_maj)
unset(version_min)
unset(version_mic)
endif(EXISTS "${${_component}_INCLUDE_DIRS}/${_ver_header}")
set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.")
set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.")
set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number." FORCE)
set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS." FORCE)
set_component_found(${_component})

249
examples/alffplay.cpp
View File

@ -167,6 +167,12 @@ struct SwsContextDeleter {
using SwsContextPtr = std::unique_ptr<SwsContext,SwsContextDeleter>;
struct ChannelLayout : public AVChannelLayout {
ChannelLayout() : AVChannelLayout{} { }
~ChannelLayout() { av_channel_layout_uninit(this); }
};
template<size_t SizeLimit>
class DataQueue {
std::mutex mPacketMutex, mFrameMutex;
@ -674,8 +680,8 @@ int AudioState::decodeFrame()
if(mDecodedFrame->nb_samples > mSamplesMax)
{
av_freep(&mSamples);
av_samples_alloc(&mSamples, nullptr, mCodecCtx->channels, mDecodedFrame->nb_samples,
mDstSampleFmt, 0);
av_samples_alloc(&mSamples, nullptr, mCodecCtx->ch_layout.nb_channels,
mDecodedFrame->nb_samples, mDstSampleFmt, 0);
mSamplesMax = mDecodedFrame->nb_samples;
}
/* Return the amount of sample frames converted */
@ -929,10 +935,6 @@ int AudioState::handler()
};
EventControlManager event_controller{sleep_time};
const bool has_bfmt_ex{alIsExtensionPresent("AL_SOFT_bformat_ex") != AL_FALSE};
ALenum ambi_layout{AL_FUMA_SOFT};
ALenum ambi_scale{AL_FUMA_SOFT};
std::unique_ptr<uint8_t[]> samples;
ALsizei buffer_len{0};
@ -950,40 +952,38 @@ int AudioState::handler()
{
mDstSampleFmt = AV_SAMPLE_FMT_FLT;
mFrameSize = 4;
if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
if(mCodecCtx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE)
{
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_7POINT1)
if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 8;
mFormat = alGetEnumValue("AL_FORMAT_71CHN32");
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_7POINT1)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 8;
mFormat = alGetEnumValue("AL_FORMAT_71CHN32");
}
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_5POINT1
|| mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_5POINT1_BACK)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 6;
mFormat = alGetEnumValue("AL_FORMAT_51CHN32");
}
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_QUAD)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_QUAD32");
}
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_5POINT1
|| mCodecCtx->channel_layout == AV_CH_LAYOUT_5POINT1_BACK)
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_MONO)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 6;
mFormat = alGetEnumValue("AL_FORMAT_51CHN32");
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_QUAD)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_QUAD32");
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 1;
mFormat = AL_FORMAT_MONO_FLOAT32;
}
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_MONO)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 1;
mFormat = AL_FORMAT_MONO_FLOAT32;
}
/* Assume 3D B-Format (ambisonics) if the channel layout is blank and
* there's 4 or more channels. FFmpeg/libavcodec otherwise seems to
* have no way to specify if the source is actually B-Format (let alone
* if it's 2D or 3D).
*/
if(mCodecCtx->channel_layout == 0 && mCodecCtx->channels >= 4
else if(mCodecCtx->ch_layout.order == AV_CHANNEL_ORDER_AMBISONIC
&& alIsExtensionPresent("AL_EXT_BFORMAT"))
{
/* Calculate what should be the ambisonic order from the number of
@ -991,9 +991,10 @@ int AudioState::handler()
* an optional non-diegetic stereo stream with the B-Format stream,
* which we can ignore, so check for that too.
*/
auto order = static_cast<int>(std::sqrt(mCodecCtx->channels)) - 1;
auto order = static_cast<int>(std::sqrt(mCodecCtx->ch_layout.nb_channels)) - 1;
int channels{(order+1) * (order+1)};
if(channels == mCodecCtx->channels || channels+2 == mCodecCtx->channels)
if(channels == mCodecCtx->ch_layout.nb_channels
|| channels+2 == mCodecCtx->ch_layout.nb_channels)
{
/* OpenAL only supports first-order with AL_EXT_BFORMAT, which
* is 4 channels for 3D buffers.
@ -1013,40 +1014,44 @@ int AudioState::handler()
{
mDstSampleFmt = AV_SAMPLE_FMT_U8;
mFrameSize = 1;
if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
if(mCodecCtx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE)
{
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_7POINT1)
if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 8;
mFormat = alGetEnumValue("AL_FORMAT_71CHN8");
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_7POINT1)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 8;
mFormat = alGetEnumValue("AL_FORMAT_71CHN8");
}
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_5POINT1
|| mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_5POINT1_BACK)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 6;
mFormat = alGetEnumValue("AL_FORMAT_51CHN8");
}
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_QUAD)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_QUAD8");
}
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_5POINT1
|| mCodecCtx->channel_layout == AV_CH_LAYOUT_5POINT1_BACK)
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_MONO)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 6;
mFormat = alGetEnumValue("AL_FORMAT_51CHN8");
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_QUAD)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_QUAD8");
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 1;
mFormat = AL_FORMAT_MONO8;
}
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_MONO)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 1;
mFormat = AL_FORMAT_MONO8;
}
if(mCodecCtx->channel_layout == 0 && mCodecCtx->channels >= 4
else if(mCodecCtx->ch_layout.order == AV_CHANNEL_ORDER_AMBISONIC
&& alIsExtensionPresent("AL_EXT_BFORMAT"))
{
auto order = static_cast<int>(std::sqrt(mCodecCtx->channels)) - 1;
auto order = static_cast<int>(std::sqrt(mCodecCtx->ch_layout.nb_channels)) - 1;
int channels{(order+1) * (order+1)};
if(channels == mCodecCtx->channels || channels+2 == mCodecCtx->channels)
if(channels == mCodecCtx->ch_layout.nb_channels
|| channels+2 == mCodecCtx->ch_layout.nb_channels)
{
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_BFORMAT3D_8");
@ -1063,40 +1068,44 @@ int AudioState::handler()
{
mDstSampleFmt = AV_SAMPLE_FMT_S16;
mFrameSize = 2;
if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
if(mCodecCtx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE)
{
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_7POINT1)
if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 8;
mFormat = alGetEnumValue("AL_FORMAT_71CHN16");
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_7POINT1)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 8;
mFormat = alGetEnumValue("AL_FORMAT_71CHN16");
}
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_5POINT1
|| mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_5POINT1_BACK)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 6;
mFormat = alGetEnumValue("AL_FORMAT_51CHN16");
}
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_QUAD)
{
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_QUAD16");
}
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_5POINT1
|| mCodecCtx->channel_layout == AV_CH_LAYOUT_5POINT1_BACK)
if(mCodecCtx->ch_layout.u.mask == AV_CH_LAYOUT_MONO)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 6;
mFormat = alGetEnumValue("AL_FORMAT_51CHN16");
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_QUAD)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_QUAD16");
mDstChanLayout = mCodecCtx->ch_layout.u.mask;
mFrameSize *= 1;
mFormat = AL_FORMAT_MONO16;
}
}
if(mCodecCtx->channel_layout == AV_CH_LAYOUT_MONO)
{
mDstChanLayout = mCodecCtx->channel_layout;
mFrameSize *= 1;
mFormat = AL_FORMAT_MONO16;
}
if(mCodecCtx->channel_layout == 0 && mCodecCtx->channels >= 4
else if(mCodecCtx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE
&& alIsExtensionPresent("AL_EXT_BFORMAT"))
{
auto order = static_cast<int>(std::sqrt(mCodecCtx->channels)) - 1;
auto order = static_cast<int>(std::sqrt(mCodecCtx->ch_layout.nb_channels)) - 1;
int channels{(order+1) * (order+1)};
if(channels == mCodecCtx->channels || channels+2 == mCodecCtx->channels)
if(channels == mCodecCtx->ch_layout.nb_channels
|| channels+2 == mCodecCtx->ch_layout.nb_channels)
{
mFrameSize *= 4;
mFormat = alGetEnumValue("AL_FORMAT_BFORMAT3D_16");
@ -1122,32 +1131,33 @@ int AudioState::handler()
return 0;
}
/* Note that ffmpeg assumes AmbiX (ACN layout, SN3D normalization). */
const bool has_bfmt_ex{alIsExtensionPresent("AL_SOFT_bformat_ex") != AL_FALSE};
const ALenum ambi_layout{AL_ACN_SOFT};
const ALenum ambi_scale{AL_SN3D_SOFT};
if(!mDstChanLayout)
{
/* OpenAL only supports first-order ambisonics with AL_EXT_BFORMAT, so
* we have to drop any extra channels.
*/
mSwresCtx.reset(swr_alloc_set_opts(nullptr,
(1_i64<<4)-1, mDstSampleFmt, mCodecCtx->sample_rate,
(1_i64<<mCodecCtx->channels)-1, mCodecCtx->sample_fmt, mCodecCtx->sample_rate,
0, nullptr));
ChannelLayout layout{};
av_channel_layout_from_string(&layout, "ambisonic 1");
/* Note that ffmpeg/libavcodec has no method to check the ambisonic
* channel order and normalization, so we can only assume AmbiX as the
* defacto-standard. This is not true for .amb files, which use FuMa.
*/
std::vector<double> mtx(64*64, 0.0);
ambi_layout = AL_ACN_SOFT;
ambi_scale = AL_SN3D_SOFT;
if(has_bfmt_ex)
SwrContext *ps{};
int err{swr_alloc_set_opts2(&ps, &layout, mDstSampleFmt, mCodecCtx->sample_rate,
&mCodecCtx->ch_layout, mCodecCtx->sample_fmt, mCodecCtx->sample_rate, 0, nullptr)};
mSwresCtx.reset(ps);
if(err != 0)
{
/* An identity matrix that doesn't remix any channels. */
std::cout<< "Found AL_SOFT_bformat_ex" <<std::endl;
mtx[0 + 0*64] = 1.0;
mtx[1 + 1*64] = 1.0;
mtx[2 + 2*64] = 1.0;
mtx[3 + 3*64] = 1.0;
char errstr[AV_ERROR_MAX_STRING_SIZE]{};
std::cerr<< "Failed to allocate SwrContext: "
<<av_make_error_string(errstr, AV_ERROR_MAX_STRING_SIZE, err) <<std::endl;
return 0;
}
if(has_bfmt_ex)
std::cout<< "Found AL_SOFT_bformat_ex" <<std::endl;
else
{
std::cout<< "Found AL_EXT_BFORMAT" <<std::endl;
@ -1155,23 +1165,36 @@ int AudioState::handler()
* ordering and normalization, so a custom matrix is needed to
* scale and reorder the source from AmbiX.
*/
std::vector<double> mtx(64*64, 0.0);
mtx[0 + 0*64] = std::sqrt(0.5);
mtx[3 + 1*64] = 1.0;
mtx[1 + 2*64] = 1.0;
mtx[2 + 3*64] = 1.0;
swr_set_matrix(mSwresCtx.get(), mtx.data(), 64);
}
swr_set_matrix(mSwresCtx.get(), mtx.data(), 64);
}
else
mSwresCtx.reset(swr_alloc_set_opts(nullptr,
static_cast<int64_t>(mDstChanLayout), mDstSampleFmt, mCodecCtx->sample_rate,
mCodecCtx->channel_layout ? static_cast<int64_t>(mCodecCtx->channel_layout)
: av_get_default_channel_layout(mCodecCtx->channels),
mCodecCtx->sample_fmt, mCodecCtx->sample_rate,
0, nullptr));
if(!mSwresCtx || swr_init(mSwresCtx.get()) != 0)
{
std::cerr<< "Failed to initialize audio converter" <<std::endl;
ChannelLayout layout{};
av_channel_layout_from_mask(&layout, mDstChanLayout);
SwrContext *ps{};
int err{swr_alloc_set_opts2(&ps, &layout, mDstSampleFmt, mCodecCtx->sample_rate,
&mCodecCtx->ch_layout, mCodecCtx->sample_fmt, mCodecCtx->sample_rate, 0, nullptr)};
mSwresCtx.reset(ps);
if(err != 0)
{
char errstr[AV_ERROR_MAX_STRING_SIZE]{};
std::cerr<< "Failed to allocate SwrContext: "
<<av_make_error_string(errstr, AV_ERROR_MAX_STRING_SIZE, err) <<std::endl;
return 0;
}
}
if(int err{swr_init(mSwresCtx.get())})
{
char errstr[AV_ERROR_MAX_STRING_SIZE]{};
std::cerr<< "Failed to initialize audio converter: "
<<av_make_error_string(errstr, AV_ERROR_MAX_STRING_SIZE, err) <<std::endl;
return 0;
}