diff options
Diffstat (limited to 'gnu/packages/patches/twinkle-bcg729.patch')
| -rw-r--r-- | gnu/packages/patches/twinkle-bcg729.patch | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/gnu/packages/patches/twinkle-bcg729.patch b/gnu/packages/patches/twinkle-bcg729.patch new file mode 100644 index 0000000000..eb8667b679 --- /dev/null +++ b/gnu/packages/patches/twinkle-bcg729.patch @@ -0,0 +1,176 @@ +From 46bee14d3cc49d4fb49eaf36a29dbcc7a11a5ab7 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Bri=C3=A8re?= <fbriere@fbriere.net> +Date: Sat, 6 Jul 2019 15:40:56 -0400 +Subject: [PATCH] Add support for the new bcg729 API, introduced in version + 1.0.2 + +Starting with version 1.0.2, bcg729 has changed its API to add support +for G.729B, thus requiring us to adjust our function calls depending on +which version is installed. + +When dealing with the new API, we merely need to add a few parameters to +disable all G.729B features, namely: + +* On the decoder side: When `SIDFrameFlag` is not set, the decoder will + behave just like before, decoding the payload as a standard G.729A + voice frame (or concealing an erased frame). The other parameters, + `rfc3389PayloadFlag` and `bitStreamLength`, are only of use when + dealing with a SID frame sent as per RFC 3389, and are ignored if + `SIDFrameFlag` is not set. + +* On the encoder side: When `enableVAD` is disabled, the encoder will + behave just like before, producing only standard G.729A voice frames. + The only API difference is the introduction of `*bitStreamLength`, to + return the length of the encoded frame (0, 2 or 10 bytes). In our + case, this will always be 10 bytes just like before; an assert() was + added to guarantee this. + +Closes #104 +--- + CMakeLists.txt | 4 ++++ + cmake/FindG729.cmake | 36 ++++++++++++++++++++++++++++++++++++ + src/audio/audio_decoder.cpp | 8 ++++++++ + src/audio/audio_encoder.cpp | 10 ++++++++++ + twinkle_config.h.in | 1 + + 5 files changed, 59 insertions(+) + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 1dafe55..7e3fde0 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -116,6 +116,10 @@ if (WITH_G729) + if (G729_FOUND) + message(STATUS "bcg729 OK") + set(HAVE_BCG729 TRUE) ++ ++ if (G729_ANNEX_B) ++ set(HAVE_BCG729_ANNEX_B TRUE) ++ endif (G729_ANNEX_B) + + include_directories(${G729_INCLUDE_DIR}) + else (G729_FOUND) +diff --git a/cmake/FindG729.cmake b/cmake/FindG729.cmake +index 4a30ba0..1fbfeeb 100644 +--- a/cmake/FindG729.cmake ++++ b/cmake/FindG729.cmake +@@ -1,14 +1,50 @@ ++INCLUDE(CMakePushCheckState) ++INCLUDE(CheckCSourceCompiles) ++ + FIND_PATH(G729_INCLUDE_DIR bcg729/decoder.h) + FIND_LIBRARY(G729_LIBRARY NAMES bcg729) + + IF(G729_INCLUDE_DIR AND G729_LIBRARY) + SET(G729_FOUND TRUE) ++ ++ # The bcg729 API was changed in 1.0.2 to add support for G.729 Annex B. ++ # This checks whether we are dealing with the old or new API. ++ CMAKE_PUSH_CHECK_STATE() ++ SET(CMAKE_REQUIRED_INCLUDES "${INCLUDE_DIRECTORIES}" "${G729_INCLUDE_DIR}") ++ SET(CMAKE_REQUIRED_LIBRARIES "${G729_LIBRARY}") ++ SET(CMAKE_REQUIRED_QUIET TRUE) ++ # Try to compile something using the old (pre-1.0.2) API. ++ # ++ # We cannot do it the other way around, as initBcg729EncoderChannel() ++ # did not have a prototype before 1.0.2, thus compilation would not fail ++ # when passing it an extra argument. ++ CHECK_C_SOURCE_COMPILES(" ++ #include <bcg729/encoder.h> ++ ++ int main() { ++ /* This function requires an argument since 1.0.2 */ ++ initBcg729EncoderChannel(); ++ return 0; ++ } ++ " G729_OLD_API) ++ CMAKE_POP_CHECK_STATE() ++ ++ IF (G729_OLD_API) ++ SET(G729_ANNEX_B FALSE) ++ ELSE (G729_OLD_API) ++ SET(G729_ANNEX_B TRUE) ++ ENDIF (G729_OLD_API) + ENDIF(G729_INCLUDE_DIR AND G729_LIBRARY) + + IF(G729_FOUND) + IF (NOT G729_FIND_QUIETLY) + MESSAGE(STATUS "Found bcg729 includes: ${G729_INCLUDE_DIR}/bcg729/decoder.h") + MESSAGE(STATUS "Found bcg729 library: ${G729_LIBRARY}") ++ IF (G729_ANNEX_B) ++ MESSAGE(STATUS "bcg729 supports Annex B; using the new (1.0.2) API") ++ ELSE (G729_ANNEX_B) ++ MESSAGE(STATUS "bcg729 does not support Annex B; using the old (pre-1.0.2) API") ++ ENDIF (G729_ANNEX_B) + ENDIF (NOT G729_FIND_QUIETLY) + ELSE(G729_FOUND) + IF (G729_FIND_REQUIRED) +diff --git a/src/audio/audio_decoder.cpp b/src/audio/audio_decoder.cpp +index 65935dd..c661910 100644 +--- a/src/audio/audio_decoder.cpp ++++ b/src/audio/audio_decoder.cpp +@@ -547,7 +547,11 @@ uint16 t_g729a_audio_decoder::decode(uint8 *payload, uint16 payload_size, + + for (uint16 done = 0; done < payload_size; done += 10) + { ++#ifdef HAVE_BCG729_ANNEX_B ++ bcg729Decoder(_context, &payload[done], 0, false, false, false, &pcm_buf[done * 8]); ++#else + bcg729Decoder(_context, &payload[done], false, &pcm_buf[done * 8]); ++#endif + } + + return payload_size * 8; +@@ -562,7 +566,11 @@ uint16 t_g729a_audio_decoder::conceal(int16 *pcm_buf, uint16 pcm_buf_size) + { + assert(pcm_buf_size >= 80); + ++#ifdef HAVE_BCG729_ANNEX_B ++ bcg729Decoder(_context, nullptr, 0, true, false, false, pcm_buf); ++#else + bcg729Decoder(_context, nullptr, true, pcm_buf); ++#endif + return 80; + } + +diff --git a/src/audio/audio_encoder.cpp b/src/audio/audio_encoder.cpp +index d6ff356..952b1ee 100644 +--- a/src/audio/audio_encoder.cpp ++++ b/src/audio/audio_encoder.cpp +@@ -433,7 +433,11 @@ uint16 t_g726_audio_encoder::encode(int16 *sample_buf, uint16 nsamples, + t_g729a_audio_encoder::t_g729a_audio_encoder(uint16 payload_id, uint16 ptime, t_user *user_config) + : t_audio_encoder(payload_id, ptime, user_config) + { ++#ifdef HAVE_BCG729_ANNEX_B ++ _context = initBcg729EncoderChannel(false); ++#else + _context = initBcg729EncoderChannel(); ++#endif + } + + t_g729a_audio_encoder::~t_g729a_audio_encoder() +@@ -451,7 +455,13 @@ uint16 t_g729a_audio_encoder::encode(int16 *sample_buf, uint16 nsamples, + + for (uint16 done = 0; done < nsamples; done += 80) + { ++#ifdef HAVE_BCG729_ANNEX_B ++ uint8 frame_size = 10; ++ bcg729Encoder(_context, &sample_buf[done], &payload[done / 8], &frame_size); ++ assert(frame_size == 10); ++#else + bcg729Encoder(_context, &sample_buf[done], &payload[done / 8]); ++#endif + } + + return nsamples / 8; +diff --git a/twinkle_config.h.in b/twinkle_config.h.in +index a1aa3b4..53a0426 100644 +--- a/twinkle_config.h.in ++++ b/twinkle_config.h.in +@@ -4,6 +4,7 @@ + #cmakedefine HAVE_ILBC_CPP + #cmakedefine HAVE_ZRTP + #cmakedefine HAVE_BCG729 ++#cmakedefine HAVE_BCG729_ANNEX_B + #cmakedefine HAVE_GSM + + #cmakedefine HAVE_UNISTD_H |