mirror of https://github.com/mgba-emu/mgba.git
FFmpeg: Support libswresample (fixes #1120)
This commit is contained in:
Vicki Pfau
parent
5874235c2d
commit
31e0642e64
1
CHANGES
1
CHANGES
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@ -67,6 +67,7 @@ Misc:
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- GB, GBA Audio: Increase max audio volume
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- GB: Fix VRAM/palette locking (fixes mgba.io/i/1109)
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- GB Video: Darken colors in GBA mode
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- FFmpeg: Support libswresample (fixes mgba.io/i/1120, mgba.io/b/123)
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0.6.3: (2017-04-14)
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Bugfixes:
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@ -438,7 +438,7 @@ set(WANT_LIBZIP ${USE_LIBZIP})
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set(WANT_SQLITE3 ${USE_SQLITE3})
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set(USE_CMOCKA ${BUILD_SUITE})
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find_feature(USE_FFMPEG "libavcodec;libavformat;libavresample;libavutil;libswscale")
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find_feature(USE_FFMPEG "libavcodec;libavformat;libavutil;libswscale")
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find_feature(USE_ZLIB "ZLIB")
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find_feature(USE_MINIZIP "minizip")
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find_feature(USE_PNG "PNG")
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@ -450,6 +450,13 @@ find_feature(USE_SQLITE3 "sqlite3")
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find_feature(USE_ELF "libelf")
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find_feature(ENABLE_PYTHON "PythonLibs")
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if(USE_FFMPEG)
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set(USE_LIBAVRESAMPLE ON)
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set(USE_LIBSWRESAMPLE ON)
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find_feature(USE_LIBAVRESAMPLE "libavresample")
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find_feature(USE_LIBSWRESAMPLE "libswresample")
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endif()
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# Features
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set(DEBUGGER_SRC
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${CMAKE_CURRENT_SOURCE_DIR}/src/debugger/debugger.c
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@ -485,22 +492,30 @@ source_group("Debugger" FILES ${DEBUGGER_SRC})
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if(USE_FFMPEG)
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list(APPEND FEATURES FFMPEG)
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pkg_search_module(LIBSWRESAMPLE QUIET libswresample)
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if(NOT LIBSWRESAMPLE_FOUND)
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if(USE_LIBSWRESAMPLE)
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list(APPEND FEATURES LIBSWRESAMPLE)
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else()
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list(APPEND FEATURES LIBAVRESAMPLE)
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list(APPEND FEATURES LIBAV)
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endif()
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include_directories(AFTER ${LIBAVCODEC_INCLUDE_DIRS} ${LIBAVFORMAT_INCLUDE_DIRS} ${LIBAVRESAMPLE_INCLUDE_DIRS} ${LIBAVUTIL_INCLUDE_DIRS} ${LIBSWSCALE_INCLUDE_DIRS})
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link_directories(${LIBAVCODEC_LIBRARY_DIRS} ${LIBAVFORMAT_LIBRARY_DIRS} ${LIBAVRESAMPLE_LIBRARY_DIRS} ${LIBAVUTIL_LIBRARY_DIRS} ${LIBSWSCALE_LIBRARY_DIRS})
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include_directories(AFTER ${LIBAVCODEC_INCLUDE_DIRS} ${LIBAVFORMAT_INCLUDE_DIRS} ${LIBAVRESAMPLE_INCLUDE_DIRS} ${LIBAVUTIL_INCLUDE_DIRS} ${LIBSWRESAMPLE_INCLUDE_DIRS} ${LIBSWSCALE_INCLUDE_DIRS})
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link_directories(${LIBAVCODEC_LIBRARY_DIRS} ${LIBAVFORMAT_LIBRARY_DIRS} ${LIBAVRESAMPLE_LIBRARY_DIRS} ${LIBAVUTIL_LIBRARY_DIRS} ${LIBSWRESAMPLE_LIBRARY_DIRS} ${LIBSWSCALE_LIBRARY_DIRS})
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list(APPEND FEATURE_SRC "${CMAKE_CURRENT_SOURCE_DIR}/src/feature/ffmpeg/ffmpeg-encoder.c")
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string(REGEX MATCH "^[0-9]+" LIBAVCODEC_VERSION_MAJOR ${libavcodec_VERSION})
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string(REGEX MATCH "^[0-9]+" LIBAVFORMAT_VERSION_MAJOR ${libavformat_VERSION})
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string(REGEX MATCH "^[0-9]+" LIBAVRESAMPLE_VERSION_MAJOR ${libavresample_VERSION})
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string(REGEX MATCH "^[0-9]+" LIBAVUTIL_VERSION_MAJOR ${libavutil_VERSION})
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string(REGEX MATCH "^[0-9]+" LIBSWRESAMPLE_VERSION_MAJOR ${libswresample_VERSION})
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string(REGEX MATCH "^[0-9]+" LIBSWSCALE_VERSION_MAJOR ${libswscale_VERSION})
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list(APPEND DEPENDENCY_LIB ${LIBAVCODEC_LIBRARIES} ${LIBAVFORMAT_LIBRARIES} ${LIBAVRESAMPLE_LIBRARIES} ${LIBAVUTIL_LIBRARIES} ${LIBSWSCALE_LIBRARIES})
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math(EXPR LIBSWRESAMPLE_VERSION_DEBIAN "${LIBSWRESAMPLE_VERSION_MAJOR} - 1")
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list(APPEND DEPENDENCY_LIB ${LIBAVCODEC_LIBRARIES} ${LIBAVFORMAT_LIBRARIES} ${LIBAVRESAMPLE_LIBRARIES} ${LIBAVUTIL_LIBRARIES} ${LIBSWSCALE_LIBRARIES} ${LIBSWRESAMPLE_LIBRARIES})
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libavcodec${LIBAVCODEC_VERSION_MAJOR}|libavcodec-extra-${LIBAVCODEC_VERSION_MAJOR}|libavcodec-ffmpeg${LIBAVCODEC_VERSION_MAJOR}|libavcodec-ffmpeg-extra${LIBAVCODEC_VERSION_MAJOR}")
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libavformat${LIBAVFORMAT_VERSION_MAJOR}|libavformat-ffmpeg${LIBAVFORMAT_VERSION_MAJOR}")
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libavresample${LIBAVRESAMPLE_VERSION_MAJOR}|libavresample-ffmpeg${LIBAVRESAMPLE_VERSION_MAJOR}")
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if(USE_LIBSWRESAMPLE)
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libswresample${LIBSWRESAMPLE_VERSION_DEBIAN}|libswresample-ffmpeg${LIBSWRESAMPLE_VERSION_DEBIAN}")
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else()
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libavresample${LIBAVRESAMPLE_VERSION_MAJOR}|libavresample-ffmpeg${LIBAVRESAMPLE_VERSION_MAJOR}")
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endif()
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libavutil${LIBAVUTIL_VERSION_MAJOR}|libavutil-ffmpeg${LIBAVUTIL_VERSION_MAJOR}")
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS},libswscale${LIBSWSCALE_VERSION_MAJOR}|libswscale-ffmpeg${LIBSWSCALE_VERSION_MAJOR}")
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set(CPACK_DEBIAN_PACKAGE_RECOMMENDS "libavcodec-extra|libavcodec-ffmpeg-extra${LIBAVCODEC_VERSION_MAJOR}")
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@ -19,7 +19,11 @@
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#include <libavutil/mathematics.h>
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#include <libavutil/opt.h>
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#ifdef USE_LIBAVRESAMPLE
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#include <libavresample/avresample.h>
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#else
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#include <libswresample/swresample.h>
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#endif
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#include <libswscale/swscale.h>
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static void _ffmpegPostVideoFrame(struct mAVStream*, const color_t* pixels, size_t stride);
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@ -248,6 +252,7 @@ bool FFmpegEncoderOpen(struct FFmpegEncoder* encoder, const char* outfile) {
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encoder->audioFrame->nb_samples = encoder->audio->frame_size;
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encoder->audioFrame->format = encoder->audio->sample_fmt;
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encoder->audioFrame->pts = 0;
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#ifdef USE_LIBAVRESAMPLE
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encoder->resampleContext = avresample_alloc_context();
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av_opt_set_int(encoder->resampleContext, "in_channel_layout", AV_CH_LAYOUT_STEREO, 0);
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av_opt_set_int(encoder->resampleContext, "out_channel_layout", AV_CH_LAYOUT_STEREO, 0);
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@ -256,6 +261,11 @@ bool FFmpegEncoderOpen(struct FFmpegEncoder* encoder, const char* outfile) {
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av_opt_set_int(encoder->resampleContext, "in_sample_fmt", AV_SAMPLE_FMT_S16, 0);
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av_opt_set_int(encoder->resampleContext, "out_sample_fmt", encoder->sampleFormat, 0);
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avresample_open(encoder->resampleContext);
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#else
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encoder->resampleContext = swr_alloc_set_opts(NULL, AV_CH_LAYOUT_STEREO, encoder->sampleFormat, encoder->sampleRate,
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AV_CH_LAYOUT_STEREO, AV_SAMPLE_FMT_S16, PREFERRED_SAMPLE_RATE, 0, NULL);
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swr_init(encoder->resampleContext);
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#endif
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encoder->audioBufferSize = (encoder->audioFrame->nb_samples * PREFERRED_SAMPLE_RATE / encoder->sampleRate) * 4;
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encoder->audioBuffer = av_malloc(encoder->audioBufferSize);
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encoder->postaudioBufferSize = av_samples_get_buffer_size(0, encoder->audio->channels, encoder->audio->frame_size, encoder->audio->sample_fmt, 0);
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@ -362,7 +372,11 @@ void FFmpegEncoderClose(struct FFmpegEncoder* encoder) {
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avcodec_close(encoder->audio);
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if (encoder->resampleContext) {
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#ifdef USE_LIBAVRESAMPLE
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avresample_close(encoder->resampleContext);
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#else
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swr_free(&encoder->resampleContext);
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#endif
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}
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if (encoder->absf) {
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@ -414,10 +428,11 @@ void _ffmpegPostAudioFrame(struct mAVStream* stream, int16_t left, int16_t right
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}
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int channelSize = 2 * av_get_bytes_per_sample(encoder->audio->sample_fmt);
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encoder->currentAudioSample = 0;
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#ifdef USE_LIBAVRESAMPLE
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avresample_convert(encoder->resampleContext, 0, 0, 0,
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(uint8_t**) &encoder->audioBuffer, 0, encoder->audioBufferSize / 4);
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encoder->currentAudioSample = 0;
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if (avresample_available(encoder->resampleContext) < encoder->audioFrame->nb_samples) {
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return;
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}
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@ -425,6 +440,17 @@ void _ffmpegPostAudioFrame(struct mAVStream* stream, int16_t left, int16_t right
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av_frame_make_writable(encoder->audioFrame);
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#endif
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int samples = avresample_read(encoder->resampleContext, encoder->audioFrame->data, encoder->postaudioBufferSize / channelSize);
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#else
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#if LIBAVCODEC_VERSION_MAJOR >= 55
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av_frame_make_writable(encoder->audioFrame);
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#endif
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if (swr_get_out_samples(encoder->resampleContext, encoder->audioBufferSize / 4) < encoder->audioFrame->nb_samples) {
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swr_convert(encoder->resampleContext, NULL, 0, (const uint8_t**) &encoder->audioBuffer, encoder->audioBufferSize / 4);
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return;
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}
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int samples = swr_convert(encoder->resampleContext, encoder->audioFrame->data, encoder->postaudioBufferSize / channelSize,
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(const uint8_t**) &encoder->audioBuffer, encoder->audioBufferSize / 4);
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#endif
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encoder->audioFrame->pts = av_rescale_q(encoder->currentAudioFrame, encoder->audio->time_base, encoder->audioStream->time_base);
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encoder->currentAudioFrame += samples;
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@ -57,7 +57,11 @@ struct FFmpegEncoder {
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size_t currentAudioSample;
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int64_t currentAudioFrame;
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int64_t nextAudioPts; // TODO (0.6): Remove
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#ifdef USE_LIBAVRESAMPLE
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struct AVAudioResampleContext* resampleContext;
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#else
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struct SwrContext* resampleContext;
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#endif
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#ifdef FFMPEG_USE_NEW_BSF
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struct AVBSFContext* absf; // Needed for AAC in MP4
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#else
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