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Codec memory tweaks

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- Ensure mad and ogg structs are allocated internally
 - Free old codec before making a new one
custom
jacqueline 2 years ago
parent 7523772886
commit bb91724b94
4 changed files with 72 additions and 39 deletions
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  1. 11
      lib/ogg/include/ogg/os_types.h
  2. 6
      src/audio/audio_decoder.cpp
  3. 6
      src/codecs/include/mad.hpp
  4. 86
      src/codecs/mad.cpp

11
lib/ogg/include/ogg/os_types.h
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@ -16,11 +16,16 @@
#ifndef _OS_TYPES_H #ifndef _OS_TYPES_H
#define _OS_TYPES_H #define _OS_TYPES_H
#include "esp_heap_caps.h"
#define OGG_MALLOC_CAPS_1 (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
#define OGG_MALLOC_CAPS_2 (MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT)
/* make it easy on the folks that want to compile the libs with a /* make it easy on the folks that want to compile the libs with a
different malloc than stdlib */ different malloc than stdlib */
#define _ogg_malloc malloc #define _ogg_malloc(x) heap_caps_malloc_prefer(x, OGG_MALLOC_CAPS_1, OGG_MALLOC_CAPS_2)
#define _ogg_calloc calloc #define _ogg_calloc(x, y) heap_caps_calloc_prefer(x, y, OGG_MALLOC_CAPS_1, OGG_MALLOC_CAPS_2)
#define _ogg_realloc realloc #define _ogg_realloc(x, y) heap_caps_realloc_prefer(x, y, OGG_MALLOC_CAPS_1, OGG_MALLOC_CAPS_2)
#define _ogg_free free #define _ogg_free free
#if defined(_WIN32) #if defined(_WIN32)

6
src/audio/audio_decoder.cpp
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@ -119,6 +119,8 @@ void Decoder::Main() {
} }
auto Decoder::BeginDecoding(std::shared_ptr<codecs::IStream> stream) -> bool { auto Decoder::BeginDecoding(std::shared_ptr<codecs::IStream> stream) -> bool {
// Ensure any previous codec is freed before creating a new one.
codec_.reset();
codec_.reset(codecs::CreateCodecForType(stream->type()).value_or(nullptr)); codec_.reset(codecs::CreateCodecForType(stream->type()).value_or(nullptr));
if (!codec_) { if (!codec_) {
ESP_LOGE(kTag, "no codec found"); ESP_LOGE(kTag, "no codec found");
@ -164,6 +166,10 @@ auto Decoder::ContinueDecoding() -> bool {
timer_->AddSamples(res->samples_written); timer_->AddSamples(res->samples_written);
} }
if (res->is_stream_finished) {
codec_.reset();
}
return res->is_stream_finished; return res->is_stream_finished;
} }

6
src/codecs/include/mad.hpp
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@ -45,9 +45,9 @@ class MadMp3Decoder : public ICodec {
std::shared_ptr<IStream> input_; std::shared_ptr<IStream> input_;
SourceBuffer buffer_; SourceBuffer buffer_;
mad_stream stream_; mad_stream* stream_;
mad_frame frame_; mad_frame* frame_;
mad_synth synth_; mad_synth* synth_;
int current_sample_; int current_sample_;
bool is_eof_; bool is_eof_;

86
src/codecs/mad.cpp
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@ -12,6 +12,7 @@
#include <cstring> #include <cstring>
#include <optional> #include <optional>
#include "esp_heap_caps.h"
#include "mad.h" #include "mad.h"
#include "codec.hpp" #include "codec.hpp"
@ -24,23 +25,44 @@ namespace codecs {
static constexpr char kTag[] = "mad"; static constexpr char kTag[] = "mad";
static constexpr uint32_t kMallocCapsPrefer =
MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT;
static constexpr uint32_t kMallocCapsFallback =
MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT;
MadMp3Decoder::MadMp3Decoder() MadMp3Decoder::MadMp3Decoder()
: input_(), buffer_(), current_sample_(-1), is_eof_(false), is_eos_(false) { : input_(),
mad_stream_init(&stream_); buffer_(),
mad_frame_init(&frame_); stream_(reinterpret_cast<mad_stream*>(
mad_synth_init(&synth_); heap_caps_malloc_prefer(sizeof(mad_stream),
kMallocCapsPrefer,
kMallocCapsFallback))),
frame_(reinterpret_cast<mad_frame*>(
heap_caps_malloc_prefer(sizeof(mad_frame),
kMallocCapsPrefer,
kMallocCapsFallback))),
synth_(reinterpret_cast<mad_synth*>(
heap_caps_malloc_prefer(sizeof(mad_synth),
kMallocCapsPrefer,
kMallocCapsFallback))),
current_sample_(-1),
is_eof_(false),
is_eos_(false) {
mad_stream_init(stream_);
mad_frame_init(frame_);
mad_synth_init(synth_);
} }
MadMp3Decoder::~MadMp3Decoder() { MadMp3Decoder::~MadMp3Decoder() {
mad_stream_finish(&stream_); mad_stream_finish(stream_);
mad_frame_finish(&frame_); mad_frame_finish(frame_);
mad_synth_finish(&synth_); mad_synth_finish(synth_);
} }
auto MadMp3Decoder::GetBytesUsed() -> std::size_t { auto MadMp3Decoder::GetBytesUsed() -> std::size_t {
if (stream_.next_frame) { if (stream_->next_frame) {
return stream_.next_frame - stream_.buffer; return stream_->next_frame - stream_->buffer;
} else { } else {
return stream_.bufend - stream_.buffer; return stream_->bufend - stream_->buffer;
} }
} }
@ -60,17 +82,17 @@ auto MadMp3Decoder::OpenStream(std::shared_ptr<IStream> input)
eof = buffer_.Refill(input_.get()); eof = buffer_.Refill(input_.get());
buffer_.ConsumeBytes([&](cpp::span<std::byte> buf) -> size_t { buffer_.ConsumeBytes([&](cpp::span<std::byte> buf) -> size_t {
mad_stream_buffer(&stream_, mad_stream_buffer(stream_,
reinterpret_cast<const unsigned char*>(buf.data()), reinterpret_cast<const unsigned char*>(buf.data()),
buf.size_bytes()); buf.size_bytes());
while (mad_header_decode(&header, &stream_) < 0) { while (mad_header_decode(&header, stream_) < 0) {
if (MAD_RECOVERABLE(stream_.error)) { if (MAD_RECOVERABLE(stream_->error)) {
// Recoverable errors are usually malformed parts of the stream. // Recoverable errors are usually malformed parts of the stream.
// We can recover from them by just retrying the decode. // We can recover from them by just retrying the decode.
continue; continue;
} }
if (stream_.error == MAD_ERROR_BUFLEN) { if (stream_->error == MAD_ERROR_BUFLEN) {
return GetBytesUsed(); return GetBytesUsed();
} }
eof = true; eof = true;
@ -120,19 +142,19 @@ auto MadMp3Decoder::DecodeTo(cpp::span<sample::Sample> output)
} }
buffer_.ConsumeBytes([&](cpp::span<std::byte> buf) -> size_t { buffer_.ConsumeBytes([&](cpp::span<std::byte> buf) -> size_t {
mad_stream_buffer(&stream_, mad_stream_buffer(stream_,
reinterpret_cast<const unsigned char*>(buf.data()), reinterpret_cast<const unsigned char*>(buf.data()),
buf.size()); buf.size());
// Decode the next frame. To signal errors, this returns -1 and // Decode the next frame. To signal errors, this returns -1 and
// stashes an error code in the stream structure. // stashes an error code in the stream structure.
while (mad_frame_decode(&frame_, &stream_) < 0) { while (mad_frame_decode(frame_, stream_) < 0) {
if (MAD_RECOVERABLE(stream_.error)) { if (MAD_RECOVERABLE(stream_->error)) {
// Recoverable errors are usually malformed parts of the stream. // Recoverable errors are usually malformed parts of the stream.
// We can recover from them by just retrying the decode. // We can recover from them by just retrying the decode.
continue; continue;
} }
if (stream_.error == MAD_ERROR_BUFLEN) { if (stream_->error == MAD_ERROR_BUFLEN) {
if (is_eof_) { if (is_eof_) {
is_eos_ = true; is_eos_ = true;
} }
@ -146,7 +168,7 @@ auto MadMp3Decoder::DecodeTo(cpp::span<sample::Sample> output)
// We've successfully decoded a frame! Now synthesize samples to write // We've successfully decoded a frame! Now synthesize samples to write
// out. // out.
mad_synth_frame(&synth_, &frame_); mad_synth_frame(synth_, frame_);
current_sample_ = 0; current_sample_ = 0;
return GetBytesUsed(); return GetBytesUsed();
}); });
@ -154,16 +176,16 @@ auto MadMp3Decoder::DecodeTo(cpp::span<sample::Sample> output)
size_t output_sample = 0; size_t output_sample = 0;
if (current_sample_ >= 0) { if (current_sample_ >= 0) {
while (current_sample_ < synth_.pcm.length) { while (current_sample_ < synth_->pcm.length) {
if (output_sample + synth_.pcm.channels >= output.size()) { if (output_sample + synth_->pcm.channels >= output.size()) {
// We can't fit the next full frame into the buffer. // We can't fit the next full frame into the buffer.
return OutputInfo{.samples_written = output_sample, return OutputInfo{.samples_written = output_sample,
.is_stream_finished = false}; .is_stream_finished = false};
} }
for (int channel = 0; channel < synth_.pcm.channels; channel++) { for (int channel = 0; channel < synth_->pcm.channels; channel++) {
output[output_sample++] = output[output_sample++] =
sample::FromMad(synth_.pcm.samples[channel][current_sample_]); sample::FromMad(synth_->pcm.samples[channel][current_sample_]);
} }
current_sample_++; current_sample_++;
} }
@ -212,13 +234,13 @@ auto MadMp3Decoder::SkipID3Tags(IStream& stream) -> void {
*/ */
auto MadMp3Decoder::GetVbrLength(const mad_header& header) auto MadMp3Decoder::GetVbrLength(const mad_header& header)
-> std::optional<uint32_t> { -> std::optional<uint32_t> {
if (!stream_.this_frame || !stream_.next_frame || if (!stream_->this_frame || !stream_->next_frame ||
stream_.next_frame <= stream_.this_frame || stream_->next_frame <= stream_->this_frame ||
(stream_.next_frame - stream_.this_frame) < 48) { (stream_->next_frame - stream_->this_frame) < 48) {
return {}; return {};
} }
int mpeg_version = (stream_.this_frame[1] >> 3) & 0x03; int mpeg_version = (stream_->this_frame[1] >> 3) & 0x03;
int xing_offset = 0; int xing_offset = 0;
switch (mpeg_version) { switch (mpeg_version) {
@ -244,17 +266,17 @@ auto MadMp3Decoder::GetVbrLength(const mad_header& header)
uint32_t frames_count = 0; uint32_t frames_count = 0;
// TODO(jacqueline): we should also look up any toc fields here, to make // TODO(jacqueline): we should also look up any toc fields here, to make
// seeking faster. // seeking faster.
if (std::memcmp(stream_.this_frame + xing_offset, "Xing", 4) == 0 || if (std::memcmp(stream_->this_frame + xing_offset, "Xing", 4) == 0 ||
std::memcmp(stream_.this_frame + xing_offset, "Info", 4) == 0) { std::memcmp(stream_->this_frame + xing_offset, "Info", 4) == 0) {
/* Xing header to get the count of frames for VBR */ /* Xing header to get the count of frames for VBR */
frames_count_raw = stream_.this_frame + xing_offset + 8; frames_count_raw = stream_->this_frame + xing_offset + 8;
frames_count = ((uint32_t)frames_count_raw[0] << 24) + frames_count = ((uint32_t)frames_count_raw[0] << 24) +
((uint32_t)frames_count_raw[1] << 16) + ((uint32_t)frames_count_raw[1] << 16) +
((uint32_t)frames_count_raw[2] << 8) + ((uint32_t)frames_count_raw[2] << 8) +
((uint32_t)frames_count_raw[3]); ((uint32_t)frames_count_raw[3]);
} else if (std::memcmp(stream_.this_frame + xing_offset, "VBRI", 4) == 0) { } else if (std::memcmp(stream_->this_frame + xing_offset, "VBRI", 4) == 0) {
/* VBRI header to get the count of frames for VBR */ /* VBRI header to get the count of frames for VBR */
frames_count_raw = stream_.this_frame + xing_offset + 14; frames_count_raw = stream_->this_frame + xing_offset + 14;
frames_count = ((uint32_t)frames_count_raw[0] << 24) + frames_count = ((uint32_t)frames_count_raw[0] << 24) +
((uint32_t)frames_count_raw[1] << 16) + ((uint32_t)frames_count_raw[1] << 16) +
((uint32_t)frames_count_raw[2] << 8) + ((uint32_t)frames_count_raw[2] << 8) +

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