blob: 489cff999bdd2600f010f8d87cebbb9519b1808a [file] [log] [blame]
// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "codec_adapter_h264_multi.h"
#include <lib/fidl/cpp/clone.h>
#include <lib/trace/event.h>
#include <lib/zx/bti.h>
#include "device_ctx.h"
#include "h264_multi_decoder.h"
#include "macros.h"
#include "pts_manager.h"
#include "vdec1.h"
namespace {
static inline constexpr uint32_t make_fourcc(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
return (static_cast<uint32_t>(d) << 24) | (static_cast<uint32_t>(c) << 16) |
(static_cast<uint32_t>(b) << 8) | static_cast<uint32_t>(a);
}
// A client using the min shouldn't necessarily expect performance to be
// acceptable when running higher bit-rates.
//
// TODO(MTWN-249): Set this to ~8k or so. For now, we have to boost the
// per-packet buffer size up to fit the largest AUs we expect to decode, until
// MTWN-249 is fixed, in case avcC format is used.
constexpr uint32_t kInputPerPacketBufferBytesMin = 512 * 1024;
// This is an arbitrary cap for now.
constexpr uint32_t kInputPerPacketBufferBytesMax = 4 * 1024 * 1024;
} // namespace
CodecAdapterH264Multi::CodecAdapterH264Multi(std::mutex& lock,
CodecAdapterEvents* codec_adapter_events,
DeviceCtx* device)
: CodecAdapter(lock, codec_adapter_events),
device_(device),
video_(device_->video()),
core_loop_(&kAsyncLoopConfigNoAttachToCurrentThread) {
// input_processing_loop_(&kAsyncLoopConfigNoAttachToCurrentThread) {
ZX_DEBUG_ASSERT(device_);
ZX_DEBUG_ASSERT(video_);
ZX_DEBUG_ASSERT(secure_memory_mode_[kInputPort] == fuchsia::mediacodec::SecureMemoryMode::OFF);
ZX_DEBUG_ASSERT(secure_memory_mode_[kOutputPort] == fuchsia::mediacodec::SecureMemoryMode::OFF);
zx_status_t status = core_loop_.StartThread("H264 Core loop");
ZX_ASSERT(status == ZX_OK);
}
CodecAdapterH264Multi::~CodecAdapterH264Multi() {
// nothing else to do here, at least not until we aren't calling PowerOff() in
// CoreCodecStopStream().
core_loop_.Shutdown();
}
bool CodecAdapterH264Multi::IsCoreCodecRequiringOutputConfigForFormatDetection() { return false; }
bool CodecAdapterH264Multi::IsCoreCodecMappedBufferUseful(CodecPort port) {
if (port == kInputPort) {
// Returning true here essentially means that we may be able to make use of mapped buffers if
// they're possible. However if is_secure true, we won't get a mapping and we don't really need
// a mapping, other than for avcC. If avcC shows up on input, we'll fail then.
//
// TODO(35200): Add the failure when avcC shows up when is_secure, as described above.
return true;
} else {
ZX_DEBUG_ASSERT(port == kOutputPort);
return false;
}
}
bool CodecAdapterH264Multi::IsCoreCodecHwBased(CodecPort port) { return true; }
zx::unowned_bti CodecAdapterH264Multi::CoreCodecBti() { return zx::unowned_bti(video_->bti()); }
void CodecAdapterH264Multi::CoreCodecInit(
const fuchsia::media::FormatDetails& initial_input_format_details) {
initial_input_format_details_ = fidl::Clone(initial_input_format_details);
latest_input_format_details_ = fidl::Clone(initial_input_format_details);
// TODO(dustingreen): We do most of the setup in CoreCodecStartStream()
// currently, but we should do more here and less there.
}
void CodecAdapterH264Multi::CoreCodecSetSecureMemoryMode(
CodecPort port, fuchsia::mediacodec::SecureMemoryMode secure_memory_mode) {
// TODO(40198): Ideally a codec list from the main CodecFactory would avoid reporting support for
// secure output or input when !is_tee_available(), which likely will mean reporting that in list
// from driver's local codec factory up to main factory. The main CodecFactory could also avoid
// handing out a codec that can't do secure output / input when the TEE isn't available, so we
// wouldn't end up here.
if (secure_memory_mode != fuchsia::mediacodec::SecureMemoryMode::OFF &&
!video_->is_tee_available()) {
events_->onCoreCodecFailCodec(
"BUG 40198 - Codec factory should catch earlier when secure requested without TEE.");
return;
}
secure_memory_mode_[port] = secure_memory_mode;
}
void CodecAdapterH264Multi::OnFrameReady(std::shared_ptr<VideoFrame> frame) {
TRACE_DURATION("media", "CodecAdapterH264Multi::OnFrameReady", "index", frame->index);
// The Codec interface requires that emitted frames are cache clean. We invalidate without
// skipping over stride-width per line, at least partly because stride - width is small (possibly
// always 0) for this decoder. But we do invalidate the UV section separately in case
// uv_plane_offset happens to leave significant space after the Y section (regardless of whether
// there's actually ever much padding there).
//
// TODO(dustingreen): Probably there's not ever any significant
// padding between Y and UV for this decoder, so probably can make one
// invalidate call here instead of two with no downsides.
// TODO(jbauman): avoid unnecessary cache ops when in RAM domain or when the buffer isn't
// mappable.
{
TRACE_DURATION("media", "cache invalidate");
io_buffer_cache_flush_invalidate(&frame->buffer, 0, frame->stride * frame->coded_height);
io_buffer_cache_flush_invalidate(&frame->buffer, frame->uv_plane_offset,
frame->stride * frame->coded_height / 2);
}
output_stride_ = frame->stride;
const CodecBuffer* buffer = frame->codec_buffer;
ZX_DEBUG_ASSERT(buffer);
// We intentionally _don't_ use the packet with same index as the buffer (in
// general - it's fine that they sometimes match), to avoid clients building
// up inappropriate dependency on buffer index being the same as packet
// index (as nice as that would be, VP9, and maybe others, don't get along
// with that in general, so ... force clients to treat packet index and
// buffer index as separate things).
CodecPacket* packet = GetFreePacket();
// With h.264, we know that an emitted buffer implies an available output
// packet, because h.264 doesn't put the same output buffer in flight more
// than once concurrently, and we have as many output packets as buffers.
// This contrasts with VP9 which has unbounded show_existing_frame.
ZX_DEBUG_ASSERT(packet);
// Associate the packet with the buffer while the packet is in-flight.
packet->SetBuffer(buffer);
packet->SetStartOffset(0);
uint64_t total_size_bytes = frame->stride * frame->coded_height * 3 / 2;
packet->SetValidLengthBytes(total_size_bytes);
if (frame->has_pts) {
packet->SetTimstampIsh(frame->pts);
} else {
packet->ClearTimestampIsh();
}
events_->onCoreCodecOutputPacket(packet, false, false);
}
void CodecAdapterH264Multi::OnError() {
LOG(ERROR, "OnError()");
OnCoreCodecFailStream(fuchsia::media::StreamError::DECODER_UNKNOWN);
}
// TODO(dustingreen): A lot of the stuff created in this method should be able
// to get re-used from stream to stream. We'll probably want to factor out
// create/init from stream init further down.
void CodecAdapterH264Multi::CoreCodecStartStream() {
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
is_input_format_details_pending_ = true;
// At least until proven otherwise.
is_avcc_ = false;
is_input_end_of_stream_queued_ = false;
is_stream_failed_ = false;
} // ~lock
// The output port is the one we really care about for is_secure of the
// decoder, since the HW can read from secure or non-secure even when in
// secure mode, but can only write to secure memory when in secure mode.
auto decoder = std::make_unique<H264MultiDecoder>(video_, this, this, IsOutputSecure());
{ // scope lock
std::lock_guard<std::mutex> lock(*video_->video_decoder_lock());
if (decoder->InitializeBuffers() != ZX_OK) {
events_->onCoreCodecFailCodec("InitializeBuffers() failed");
return;
}
decoder_ = decoder.get();
auto decoder_instance =
std::make_unique<DecoderInstance>(std::move(decoder), video_->vdec1_core());
StreamBuffer* buffer = decoder_instance->stream_buffer();
video_->AddNewDecoderInstance(std::move(decoder_instance));
if (video_->AllocateStreamBuffer(buffer, PAGE_SIZE * 1024, /*use_parser=*/IsOutputSecure(),
IsOutputSecure()) != ZX_OK) {
events_->onCoreCodecFailCodec("AllocateStreamBuffer() failed");
return;
}
} // ~lock
}
void CodecAdapterH264Multi::CoreCodecQueueInputFormatDetails(
const fuchsia::media::FormatDetails& per_stream_override_format_details) {
// TODO(dustingreen): Consider letting the client specify profile/level info
// in the FormatDetails at least optionally, and possibly sizing input
// buffer constraints and/or other buffers based on that.
QueueInputItem(CodecInputItem::FormatDetails(per_stream_override_format_details));
}
void CodecAdapterH264Multi::CoreCodecQueueInputPacket(CodecPacket* packet) {
QueueInputItem(CodecInputItem::Packet(packet));
}
void CodecAdapterH264Multi::CoreCodecQueueInputEndOfStream() {
// This queues a marker, but doesn't force the HW to necessarily decode all
// the way up to the marker, depending on whether the client closes the stream
// or switches to a different stream first - in those cases it's fine for the
// marker to never show up as output EndOfStream.
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
is_input_end_of_stream_queued_ = true;
} // ~lock
QueueInputItem(CodecInputItem::EndOfStream());
}
// TODO(dustingreen): See comment on CoreCodecStartStream() re. not deleting
// creating as much stuff for each stream.
void CodecAdapterH264Multi::CoreCodecStopStream() {
std::list<CodecInputItem> leftover_input_items = CoreCodecStopStreamInternal();
for (auto& input_item : leftover_input_items) {
if (input_item.is_packet()) {
events_->onCoreCodecInputPacketDone(std::move(input_item.packet()));
}
}
}
// TODO(dustingreen): See comment on CoreCodecStartStream() re. not deleting
// creating as much stuff for each stream.
std::list<CodecInputItem> CodecAdapterH264Multi::CoreCodecStopStreamInternal() {
std::list<CodecInputItem> leftover_input_items;
// TODO: start cancellation of input processing before acquiring decoder lock, in case decoder is
// stuck decoding and is trying to use onCoreCodecResetStreamAfterCurrentFrame().
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
leftover_input_items = std::move(input_queue_);
}
LOG(TRACE, "RemoveDecoder()...");
{
std::lock_guard<std::mutex> decoder_lock(*video_->video_decoder_lock());
video_->RemoveDecoderLocked(decoder_);
decoder_ = nullptr;
}
LOG(TRACE, "RemoveDecoder() done.");
return leftover_input_items;
}
void CodecAdapterH264Multi::CoreCodecAddBuffer(CodecPort port, const CodecBuffer* buffer) {
if (port == kInputPort) {
const char* kInputBufferName = "H264InputBuffer";
buffer->vmo().set_property(ZX_PROP_NAME, kInputBufferName, strlen(kInputBufferName));
} else if (port == kOutputPort) {
const char* kOutputBufferName = "H264OutputBuffer";
buffer->vmo().set_property(ZX_PROP_NAME, kOutputBufferName, strlen(kOutputBufferName));
}
if (port != kOutputPort) {
return;
}
ZX_DEBUG_ASSERT(port == kOutputPort);
all_output_buffers_.push_back(buffer);
}
void CodecAdapterH264Multi::CoreCodecConfigureBuffers(
CodecPort port, const std::vector<std::unique_ptr<CodecPacket>>& packets) {
if (port != kOutputPort) {
return;
}
ZX_DEBUG_ASSERT(port == kOutputPort);
// output
ZX_DEBUG_ASSERT(all_output_packets_.empty());
ZX_DEBUG_ASSERT(free_output_packets_.empty());
ZX_DEBUG_ASSERT(!all_output_buffers_.empty());
ZX_DEBUG_ASSERT(all_output_buffers_.size() <= packets.size());
for (auto& packet : packets) {
all_output_packets_.push_back(packet.get());
free_output_packets_.push_back(packet.get()->packet_index());
}
// This should prevent any inadvertent dependence by clients on the ordering
// of packet_index values in the output stream or any assumptions re. the
// relationship between packet_index and buffer_index.
std::shuffle(free_output_packets_.begin(), free_output_packets_.end(), not_for_security_prng_);
}
void CodecAdapterH264Multi::CoreCodecRecycleOutputPacket(CodecPacket* packet) {
if (packet->is_new()) {
packet->SetIsNew(false);
return;
}
ZX_DEBUG_ASSERT(!packet->is_new());
// A recycled packet will have a buffer set because the packet is in-flight
// until put on the free list, and has a buffer associated while in-flight.
const CodecBuffer* buffer = packet->buffer();
ZX_DEBUG_ASSERT(buffer);
// Getting the buffer is all we needed the packet for. The packet won't get
// re-used until it goes back on the free list below.
packet->SetBuffer(nullptr);
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
free_output_packets_.push_back(packet->packet_index());
} // ~lock
async::PostTask(core_loop_.dispatcher(), [this, video_frame = buffer->video_frame()]() {
std::lock_guard<std::mutex> lock(*video_->video_decoder_lock());
std::shared_ptr<VideoFrame> frame = video_frame.lock();
if (!frame) {
// EndOfStream seen at the output, or a new InitializeFrames(), can cause
// !frame, which is fine. In that case, any new stream will request
// allocation of new frames.
return;
}
if (!decoder_)
return;
// Potentially this also pumps the decoder under video_decoder_lock.
decoder_->ReturnFrame(std::move(frame));
});
}
void CodecAdapterH264Multi::CoreCodecEnsureBuffersNotConfigured(CodecPort port) {
std::lock_guard<std::mutex> lock(lock_);
// This adapter should ensure that zero old CodecPacket* or CodecBuffer*
// remain in this adapter (or below).
if (port == kInputPort) {
// There shouldn't be any queued input at this point, but if there is any,
// fail here even in a release build.
ZX_ASSERT(input_queue_.empty());
} else {
ZX_DEBUG_ASSERT(port == kOutputPort);
// The old all_output_buffers_ are no longer valid.
all_output_buffers_.clear();
all_output_packets_.clear();
free_output_packets_.clear();
}
buffer_settings_[port].reset();
}
std::unique_ptr<const fuchsia::media::StreamOutputConstraints>
CodecAdapterH264Multi::CoreCodecBuildNewOutputConstraints(
uint64_t stream_lifetime_ordinal, uint64_t new_output_buffer_constraints_version_ordinal,
bool buffer_constraints_action_required) {
// This decoder produces NV12.
// Fairly arbitrary. The client should set a higher value if the client needs
// to camp on more frames than this.
constexpr uint32_t kDefaultPacketCountForClient = 1;
uint32_t per_packet_buffer_bytes = min_stride_ * height_ * 3 / 2;
std::unique_ptr<fuchsia::media::StreamOutputConstraints> config =
std::make_unique<fuchsia::media::StreamOutputConstraints>();
config->set_stream_lifetime_ordinal(stream_lifetime_ordinal);
auto* constraints = config->mutable_buffer_constraints();
auto* default_settings = constraints->mutable_default_settings();
// For the moment, we always require buffer reallocation for any output constraints change.
ZX_DEBUG_ASSERT(buffer_constraints_action_required);
config->set_buffer_constraints_action_required(buffer_constraints_action_required);
constraints->set_buffer_constraints_version_ordinal(
new_output_buffer_constraints_version_ordinal);
// 0 is intentionally invalid - the client must fill out this field.
default_settings->set_buffer_lifetime_ordinal(0);
default_settings->set_buffer_constraints_version_ordinal(
new_output_buffer_constraints_version_ordinal);
default_settings->set_packet_count_for_server(min_buffer_count_[kOutputPort]);
default_settings->set_packet_count_for_client(kDefaultPacketCountForClient);
// Packed NV12 (no extra padding, min UV offset, min stride).
default_settings->set_per_packet_buffer_bytes(per_packet_buffer_bytes);
default_settings->set_single_buffer_mode(false);
// For the moment, let's tell the client to allocate this exact size, though sysmem constraints
// will override.
constraints->set_per_packet_buffer_bytes_min(per_packet_buffer_bytes);
constraints->set_per_packet_buffer_bytes_recommended(per_packet_buffer_bytes);
constraints->set_per_packet_buffer_bytes_max(per_packet_buffer_bytes);
// The hardware only needs min_buffer_count_ buffers - more aren't better. The sysmem constrain
// will override this anyway.
constraints->set_packet_count_for_server_min(min_buffer_count_[kOutputPort]);
constraints->set_packet_count_for_server_recommended(min_buffer_count_[kOutputPort]);
constraints->set_packet_count_for_server_recommended_max(min_buffer_count_[kOutputPort]);
constraints->set_packet_count_for_server_max(min_buffer_count_[kOutputPort]);
constraints->set_packet_count_for_client_min(0);
// Ensure that if the client allocates its max + the server max that it won't go over the hardware
// limit (max_buffer_count).
if (max_buffer_count_[kOutputPort] <= min_buffer_count_[kOutputPort]) {
events_->onCoreCodecFailCodec("Impossible for client to satisfy buffer counts");
return nullptr;
}
constraints->set_packet_count_for_client_max(max_buffer_count_[kOutputPort] -
min_buffer_count_[kOutputPort]);
// False because it's not required and not encouraged for a video decoder
// output to allow single buffer mode.
constraints->set_single_buffer_mode_allowed(false);
constraints->set_is_physically_contiguous_required(true);
return config;
}
fuchsia::sysmem::BufferCollectionConstraints
CodecAdapterH264Multi::CoreCodecGetBufferCollectionConstraints(
CodecPort port, const fuchsia::media::StreamBufferConstraints& stream_buffer_constraints,
const fuchsia::media::StreamBufferPartialSettings& partial_settings) {
fuchsia::sysmem::BufferCollectionConstraints result;
// For now, we didn't report support for single_buffer_mode, and CodecImpl
// will have failed the codec already by this point if the client tried to
// use single_buffer_mode.
//
// TODO(dustingreen): Support single_buffer_mode on input (only).
ZX_DEBUG_ASSERT(!partial_settings.has_single_buffer_mode() ||
!partial_settings.single_buffer_mode());
// The CodecImpl won't hand us the sysmem token, so we shouldn't expect to
// have the token here.
ZX_DEBUG_ASSERT(!partial_settings.has_sysmem_token());
// The CodecImpl already checked that these are set and that they're
// consistent with packet count constraints.
ZX_DEBUG_ASSERT(partial_settings.has_packet_count_for_server());
ZX_DEBUG_ASSERT(partial_settings.has_packet_count_for_client());
if (port == kInputPort) {
// We don't override CoreCodecBuildNewInputConstraints() for now, so pick these up from what was
// set by default implementation of CoreCodecBuildNewInputConstraints().
min_buffer_count_[kInputPort] = stream_buffer_constraints.packet_count_for_server_min();
max_buffer_count_[kInputPort] = stream_buffer_constraints.packet_count_for_server_max();
}
ZX_DEBUG_ASSERT(min_buffer_count_[port] != 0);
ZX_DEBUG_ASSERT(max_buffer_count_[port] != 0);
result.min_buffer_count_for_camping = min_buffer_count_[port];
// Some slack is nice overall, but avoid having each participant ask for
// dedicated slack. Using sysmem the client will ask for it's own buffers for
// camping and any slack, so the codec doesn't need to ask for any extra on
// behalf of the client.
ZX_DEBUG_ASSERT(result.min_buffer_count_for_dedicated_slack == 0);
ZX_DEBUG_ASSERT(result.min_buffer_count_for_shared_slack == 0);
result.max_buffer_count = max_buffer_count_[port];
uint32_t per_packet_buffer_bytes_min;
uint32_t per_packet_buffer_bytes_max;
if (port == kInputPort) {
per_packet_buffer_bytes_min = kInputPerPacketBufferBytesMin;
per_packet_buffer_bytes_max = kInputPerPacketBufferBytesMax;
} else {
ZX_DEBUG_ASSERT(port == kOutputPort);
// NV12, based on min stride.
per_packet_buffer_bytes_min = min_stride_ * height_ * 3 / 2;
// At least for now, don't cap the per-packet buffer size for output. The
// HW only cares about the portion we set up for output anyway, and the
// client has no way to force output to occur into portions of the output
// buffer beyond what's implied by the max supported image dimensions.
per_packet_buffer_bytes_max = 0xFFFFFFFF;
}
result.has_buffer_memory_constraints = true;
result.buffer_memory_constraints.min_size_bytes = per_packet_buffer_bytes_min;
result.buffer_memory_constraints.max_size_bytes = per_packet_buffer_bytes_max;
// amlogic requires physically contiguous on both input and output
result.buffer_memory_constraints.physically_contiguous_required = true;
result.buffer_memory_constraints.secure_required = IsPortSecureRequired(port);
result.buffer_memory_constraints.cpu_domain_supported = !IsPortSecureRequired(port);
result.buffer_memory_constraints.ram_domain_supported =
!IsPortSecureRequired(port) && (port == kOutputPort);
if (IsPortSecurePermitted(port)) {
result.buffer_memory_constraints.inaccessible_domain_supported = true;
fuchsia::sysmem::HeapType secure_heap = (port == kInputPort)
? fuchsia::sysmem::HeapType::AMLOGIC_SECURE_VDEC
: fuchsia::sysmem::HeapType::AMLOGIC_SECURE;
result.buffer_memory_constraints
.heap_permitted[result.buffer_memory_constraints.heap_permitted_count++] = secure_heap;
}
if (!IsPortSecureRequired(port)) {
result.buffer_memory_constraints
.heap_permitted[result.buffer_memory_constraints.heap_permitted_count++] =
fuchsia::sysmem::HeapType::SYSTEM_RAM;
}
if (port == kOutputPort) {
result.image_format_constraints_count = 1;
fuchsia::sysmem::ImageFormatConstraints& image_constraints = result.image_format_constraints[0];
image_constraints.pixel_format.type = fuchsia::sysmem::PixelFormatType::NV12;
image_constraints.pixel_format.has_format_modifier = true;
image_constraints.pixel_format.format_modifier.value = fuchsia::sysmem::FORMAT_MODIFIER_LINEAR;
// TODO(MTWN-251): confirm that REC709 is always what we want here, or plumb
// actual YUV color space if it can ever be REC601_*. Since 2020 and 2100
// are minimum 10 bits per Y sample and we're outputting NV12, 601 is the
// only other potential possibility here.
image_constraints.color_spaces_count = 1;
image_constraints.color_space[0].type = fuchsia::sysmem::ColorSpaceType::REC709;
// The non-"required_" fields indicate the decoder's ability to potentially
// output frames at various dimensions as coded in the stream. Aside from
// the current stream being somewhere in these bounds, these have nothing to
// do with the current stream in particular.
image_constraints.min_coded_width = 16;
image_constraints.max_coded_width = 4096;
image_constraints.min_coded_height = 16;
// This intentionally isn't the _height_ of a 4096x2176 frame, it's
// intentionally the _width_ of a 4096x2176 frame assigned to
// max_coded_height.
//
// See max_coded_width_times_coded_height. We intentionally constrain the
// max dimension in width or height to the width of a 4096x2176 frame.
// While the HW might be able to go bigger than that as long as the other
// dimension is smaller to compensate, we don't really need to enable any
// larger than 4096x2176's width in either dimension, so we don't.
image_constraints.max_coded_height = 4096;
image_constraints.min_bytes_per_row = 16;
// no hard-coded max stride, at least for now
image_constraints.max_bytes_per_row = 0xFFFFFFFF;
image_constraints.max_coded_width_times_coded_height = 4096 * 2176;
image_constraints.layers = 1;
image_constraints.coded_width_divisor = 16;
image_constraints.coded_height_divisor = 16;
image_constraints.bytes_per_row_divisor = 32;
// TODO(dustingreen): Since this is a producer that will always produce at
// offset 0 of a physical page, we don't really care if this field is
// consistent with any constraints re. what the HW can do.
image_constraints.start_offset_divisor = 1;
// Odd display dimensions are permitted, but these don't imply odd NV12
// dimensions - those are constrainted by coded_width_divisor and
// coded_height_divisor which are both 16.
image_constraints.display_width_divisor = 1;
image_constraints.display_height_divisor = 1;
// The decoder is producing frames and the decoder has no choice but to
// produce frames at their coded size. The decoder wants to potentially be
// able to support a stream with dynamic resolution, potentially including
// dimensions both less than and greater than the dimensions that led to the
// current need to allocate a BufferCollection. For this reason, the
// required_ fields are set to the exact current dimensions, and the
// permitted (non-required_) fields is set to the full potential range that
// the decoder could potentially output. If an initiator wants to require a
// larger range of dimensions that includes the required range indicated
// here (via a-priori knowledge of the potential stream dimensions), an
// initiator is free to do so.
image_constraints.required_min_coded_width = width_;
image_constraints.required_max_coded_width = width_;
image_constraints.required_min_coded_height = height_;
image_constraints.required_max_coded_height = height_;
} else {
ZX_DEBUG_ASSERT(result.image_format_constraints_count == 0);
}
// We don't have to fill out usage - CodecImpl takes care of that.
ZX_DEBUG_ASSERT(!result.usage.cpu);
ZX_DEBUG_ASSERT(!result.usage.display);
ZX_DEBUG_ASSERT(!result.usage.vulkan);
ZX_DEBUG_ASSERT(!result.usage.video);
return result;
}
void CodecAdapterH264Multi::CoreCodecSetBufferCollectionInfo(
CodecPort port, const fuchsia::sysmem::BufferCollectionInfo_2& buffer_collection_info) {
ZX_DEBUG_ASSERT(buffer_collection_info.settings.buffer_settings.is_physically_contiguous);
if (port == kOutputPort) {
ZX_DEBUG_ASSERT(buffer_collection_info.settings.has_image_format_constraints);
ZX_DEBUG_ASSERT(buffer_collection_info.settings.image_format_constraints.pixel_format.type ==
fuchsia::sysmem::PixelFormatType::NV12);
}
buffer_settings_[port].emplace(buffer_collection_info.settings);
ZX_DEBUG_ASSERT(IsPortSecure(port) || !IsPortSecureRequired(port));
ZX_DEBUG_ASSERT(!IsPortSecure(port) || IsPortSecurePermitted(port));
// TODO(dustingreen): Remove after secure video decode works e2e.
LOG(TRACE,
"CodecAdapterH264Multi::CoreCodecSetBufferCollectionInfo() - IsPortSecure(): %u port: %u",
IsPortSecure(port), port);
}
fuchsia::media::StreamOutputFormat CodecAdapterH264Multi::CoreCodecGetOutputFormat(
uint64_t stream_lifetime_ordinal, uint64_t new_output_format_details_version_ordinal) {
fuchsia::media::StreamOutputFormat result;
result.set_stream_lifetime_ordinal(stream_lifetime_ordinal);
result.mutable_format_details()->set_format_details_version_ordinal(
new_output_format_details_version_ordinal);
result.mutable_format_details()->set_mime_type("video/raw");
// For the moment, we'll memcpy to NV12 without any extra padding.
fuchsia::media::VideoUncompressedFormat video_uncompressed;
video_uncompressed.fourcc = make_fourcc('N', 'V', '1', '2');
video_uncompressed.primary_width_pixels = width_;
video_uncompressed.primary_height_pixels = height_;
video_uncompressed.secondary_width_pixels = width_ / 2;
video_uncompressed.secondary_height_pixels = height_ / 2;
// TODO(dustingreen): remove this field from the VideoUncompressedFormat or
// specify separately for primary / secondary.
video_uncompressed.planar = true;
video_uncompressed.swizzled = false;
video_uncompressed.primary_line_stride_bytes = output_stride_;
video_uncompressed.secondary_line_stride_bytes = output_stride_;
video_uncompressed.primary_start_offset = 0;
video_uncompressed.secondary_start_offset = output_stride_ * height_;
video_uncompressed.tertiary_start_offset = output_stride_ * height_ + 1;
video_uncompressed.primary_pixel_stride = 1;
video_uncompressed.secondary_pixel_stride = 2;
video_uncompressed.primary_display_width_pixels = display_width_;
video_uncompressed.primary_display_height_pixels = display_height_;
video_uncompressed.has_pixel_aspect_ratio = has_sar_;
video_uncompressed.pixel_aspect_ratio_width = sar_width_;
video_uncompressed.pixel_aspect_ratio_height = sar_height_;
video_uncompressed.image_format.pixel_format.type = fuchsia::sysmem::PixelFormatType::NV12;
video_uncompressed.image_format.coded_width = width_;
video_uncompressed.image_format.coded_height = height_;
video_uncompressed.image_format.bytes_per_row = output_stride_;
video_uncompressed.image_format.display_width = display_width_;
video_uncompressed.image_format.display_height = display_height_;
video_uncompressed.image_format.layers = 1;
video_uncompressed.image_format.color_space.type = fuchsia::sysmem::ColorSpaceType::REC709;
video_uncompressed.image_format.has_pixel_aspect_ratio = has_sar_;
video_uncompressed.image_format.pixel_aspect_ratio_width = sar_width_;
video_uncompressed.image_format.pixel_aspect_ratio_height = sar_height_;
fuchsia::media::VideoFormat video_format;
video_format.set_uncompressed(std::move(video_uncompressed));
result.mutable_format_details()->mutable_domain()->set_video(std::move(video_format));
return result;
}
void CodecAdapterH264Multi::CoreCodecMidStreamOutputBufferReConfigPrepare() {
// For this adapter, the core codec just needs us to get new frame buffers
// set up, so nothing to do here.
//
// CoreCodecEnsureBuffersNotConfigured() will run soon.
}
void CodecAdapterH264Multi::CoreCodecMidStreamOutputBufferReConfigFinish() {
// Now that the client has configured output buffers, we need to hand those
// back to the core codec via InitializedFrames.
std::vector<CodecFrame> frames;
uint32_t width;
uint32_t height;
uint32_t stride;
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
// Now we need to populate the frames_out vector.
for (uint32_t i = 0; i < all_output_buffers_.size(); i++) {
ZX_DEBUG_ASSERT(all_output_buffers_[i]->index() == i);
ZX_DEBUG_ASSERT(all_output_buffers_[i]->codec_buffer().buffer_index() == i);
frames.emplace_back(CodecFrame{
.codec_buffer_spec = fidl::Clone(all_output_buffers_[i]->codec_buffer()),
.codec_buffer_ptr = all_output_buffers_[i],
});
}
width = width_;
height = height_;
// TODO(dustingreen): Get stride from sysmem.
stride = min_stride_;
} // ~lock
{
std::lock_guard<std::mutex> lock(*video_->video_decoder_lock());
decoder_->InitializedFrames(std::move(frames), width, height, stride);
}
async::PostTask(core_loop_.dispatcher(), [this] {
std::lock_guard<std::mutex> lock(*video_->video_decoder_lock());
if (!decoder_)
return;
// Something else may have come along since InitializedFrames and pumped the decoder, but that's
// ok.
decoder_->PumpOrReschedule();
});
}
void CodecAdapterH264Multi::QueueInputItem(CodecInputItem input_item) {
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
// For now we don't worry about avoiding a trigger if we happen to queue
// when ProcessInput() has removed the last item but ProcessInput() is still
// running.
input_queue_.emplace_back(std::move(input_item));
if (!have_queued_trigger_decoder_) {
have_queued_trigger_decoder_ = true;
async::PostTask(core_loop_.dispatcher(), [this]() {
{
std::lock_guard<std::mutex> lock(lock_);
have_queued_trigger_decoder_ = false;
}
std::lock_guard<std::mutex> lock(*video_->video_decoder_lock());
if (!decoder_)
return;
decoder_->ReceivedNewInput();
});
}
} // ~lock
}
CodecInputItem CodecAdapterH264Multi::DequeueInputItem() {
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
if (is_stream_failed_ || input_queue_.empty()) {
return CodecInputItem::Invalid();
}
CodecInputItem to_ret = std::move(input_queue_.front());
input_queue_.pop_front();
return to_ret;
} // ~lock
}
H264MultiDecoder::DataInput CodecAdapterH264Multi::ReadMoreInputData(H264MultiDecoder* decoder) {
H264MultiDecoder::DataInput result;
while (true) {
CodecInputItem item = DequeueInputItem();
if (!item.is_valid()) {
return result;
}
if (item.is_format_details()) {
// TODO(dustingreen): Be more strict about what the input format actually
// is, and less strict about it matching the initial format.
ZX_ASSERT(fidl::Equals(item.format_details(), initial_input_format_details_));
latest_input_format_details_ = fidl::Clone(item.format_details());
is_input_format_details_pending_ = true;
continue;
}
if (item.is_end_of_stream()) {
decoder_->QueueInputEos();
is_input_end_of_stream_queued_to_core_ = true;
return result;
}
ZX_DEBUG_ASSERT(item.is_packet());
auto return_input_packet =
fit::defer([this, &item] { events_->onCoreCodecInputPacketDone(item.packet()); });
if (is_input_format_details_pending_) {
is_input_format_details_pending_ = false;
std::vector<uint8_t> oob_bytes = ParseAndDeliverCodecOobBytes();
if (!oob_bytes.empty()) {
result.data = std::move(oob_bytes);
return result;
}
}
uint8_t* data = item.packet()->buffer()->base() + item.packet()->start_offset();
uint32_t len = item.packet()->valid_length_bytes();
auto parsed_input_data = ParseVideo(nullptr, data, len);
if (!parsed_input_data)
continue;
result = *std::move(parsed_input_data);
if (item.packet()->has_timestamp_ish())
result.pts = item.packet()->timestamp_ish();
return result;
// At this point CodecInputItem is holding a packet pointer which may get
// re-used in a new CodecInputItem, but that's ok since CodecInputItem is
// going away here.
//
// ~return_input_packet, ~item
}
}
bool CodecAdapterH264Multi::HasMoreInputData() {
std::lock_guard<std::mutex> lock(lock_);
return !input_queue_.empty();
}
std::vector<uint8_t> CodecAdapterH264Multi::ParseAndDeliverCodecOobBytes() {
// Our latest oob_bytes may contain SPS/PPS info. If we have any
// such info, the core codec needs it (possibly converted first).
// If there's no OOB info, then there's nothing to do, as all such info will
// be in-band in normal packet-based AnnexB NALs (including start codes and
// start code emulation prevention bytes).
if (!latest_input_format_details_.has_oob_bytes() ||
latest_input_format_details_.oob_bytes().empty()) {
// success
return {};
}
const std::vector<uint8_t>* oob = &latest_input_format_details_.oob_bytes();
// We need to deliver Annex B style SPS/PPS to this core codec, regardless of
// what format the oob_bytes is in.
// The oob_bytes can be in two different forms, which can be detected by
// the value of the first byte:
//
// 0 - Annex B form already. The 0 is the first byte of a start code.
// 1 - AVCC form, which we'll convert to Annex B form. AVCC version 1. There
// is no AVCC version 0.
// anything else - fail.
//
// In addition, we need to know if AVCC or not since we need to know whether
// to add start code emulation prevention bytes or not. And if it's AVCC,
// how many bytes long the pseudo_nal_length field is - that field is before
// each input NAL.
// We already checked empty() above.
ZX_DEBUG_ASSERT(oob->size() >= 1);
switch ((*oob)[0]) {
case 0:
is_avcc_ = false;
return *oob;
case 1: {
// This applies to both the oob data and the input packet payload data.
// Both are AVCC, or both are AnnexB.
is_avcc_ = true;
/*
AVCC OOB data layout (bits):
[0] (8) - version 1
[1] (8) - h264 profile #
[2] (8) - compatible profile bits
[3] (8) - h264 level (eg. 31 == "3.1")
[4] (6) - reserved, can be set to all 1s
(2) - pseudo_nal_length_field_bytes_ - 1
[5] (3) - reserved, can be set to all 1s
(5) - sps_count
(16) - sps_bytes
(8*sps_bytes) - SPS nal_unit_type (that byte) + SPS data as RBSP.
(8) - pps_count
(16) - pps_bytes
(8*pps_bytes) - PPS nal_unit_type (that byte) + PPS data as RBSP.
*/
// We accept 0 SPS and/or 0 PPS, but typically there's one of each. At
// minimum the oob buffer needs to be large enough to contain both the
// sps_count and pps_count fields, which is a min of 7 bytes.
if (oob->size() < 7) {
LOG(ERROR, "oob->size() < 7");
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
uint32_t stashed_pseudo_nal_length_bytes = ((*oob)[4] & 0x3) + 1;
// Temporarily, the pseudo_nal_length_field_bytes_ is 2 so we can
// ParseVideo() directly out of "oob".
pseudo_nal_length_field_bytes_ = 2;
uint32_t sps_count = (*oob)[5] & 0x1F;
uint32_t offset = 6;
std::vector<uint8_t> accumulation;
for (uint32_t i = 0; i < sps_count; ++i) {
if (offset + 2 > oob->size()) {
LOG(ERROR, "offset + 2 > oob->size()");
;
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
uint32_t sps_length = (*oob)[offset] * 256 + (*oob)[offset + 1];
if (offset + 2 + sps_length > oob->size()) {
LOG(ERROR, "offset + 2 + sps_length > oob->size()");
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
for (uint32_t i = 0; i < 2 + sps_length; i++) {
accumulation.push_back(oob->data()[offset + i]);
}
offset += 2 + sps_length;
}
if (offset + 1 > oob->size()) {
LOG(ERROR, "offset + 1 > oob->size()");
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
uint32_t pps_count = (*oob)[offset++];
for (uint32_t i = 0; i < pps_count; ++i) {
if (offset + 2 > oob->size()) {
LOG(ERROR, "offset + 2 > oob->size()");
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
uint32_t pps_length = (*oob)[offset] * 256 + (*oob)[offset + 1];
if (offset + 2 + pps_length > oob->size()) {
LOG(ERROR, "offset + 2 + pps_length > oob->size()");
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
for (uint32_t i = 0; i < 2 + pps_length; i++) {
accumulation.push_back(oob->data()[offset + i]);
}
offset += 2 + pps_length;
}
// All pseudo-NALs in input packet payloads will use the
// parsed count of bytes of the length field.
pseudo_nal_length_field_bytes_ = stashed_pseudo_nal_length_bytes;
return accumulation;
}
default:
LOG(ERROR, "unexpected first oob byte");
OnCoreCodecFailStream(fuchsia::media::StreamError::INVALID_INPUT_FORMAT_DETAILS);
return {};
}
}
std::optional<H264MultiDecoder::DataInput> CodecAdapterH264Multi::ParseVideo(
const CodecBuffer* buffer, const uint8_t* data, uint32_t length) {
if (is_avcc_) {
ZX_DEBUG_ASSERT(!buffer);
return ParseVideoAvcc(data, length);
} else {
return ParseVideoAnnexB(buffer, data, length);
}
}
std::optional<H264MultiDecoder::DataInput> CodecAdapterH264Multi::ParseVideoAvcc(
const uint8_t* data, uint32_t length) {
// We don't necessarily know that is_avcc_ is true on entry to this method.
// We use this method to send the decoder a bunch of 0x00 sometimes, which
// will call this method regardless of is_avcc_ or not.
// So far, the "avcC"/"AVCC" we've seen has emulation prevention bytes on it
// already. So we don't add those here. But if we did need to add them, we'd
// add them here.
// For now we assume the heap is pretty fast and doesn't mind the size thrash,
// but maybe we'll want to keep a buffer around (we'll optimize only if/when
// we determine this is actually a problem). We only actually use this buffer
// if is_avcc_ (which is not uncommon).
// We do parse more than one pseudo_nal per input packet.
//
// No splitting NALs across input packets, for now.
//
// TODO(dustingreen): Allow splitting NALs across input packets (not a small
// change). Probably also move into a source_set for sharing with other
// CodecAdapter(s).
// Count the input pseudo_nal(s)
uint32_t pseudo_nal_count = 0;
uint32_t i = 0;
while (i < length) {
if (i + pseudo_nal_length_field_bytes_ > length) {
LOG(ERROR, "i + pseudo_nal_length_field_bytes_ > length");
OnCoreCodecFailStream(fuchsia::media::StreamError::DECODER_UNKNOWN);
return {};
}
// Read pseudo_nal_length field, which is a field which can be 1-4 bytes
// long because AVCC/avcC.
uint32_t pseudo_nal_length = 0;
for (uint32_t length_byte = 0; length_byte < pseudo_nal_length_field_bytes_; ++length_byte) {
pseudo_nal_length = pseudo_nal_length * 256 + data[i + length_byte];
}
i += pseudo_nal_length_field_bytes_;
if (i + pseudo_nal_length > length) {
LOG(ERROR, "i + pseudo_nal_length > length");
OnCoreCodecFailStream(fuchsia::media::StreamError::DECODER_UNKNOWN);
return {};
}
i += pseudo_nal_length;
++pseudo_nal_count;
}
static constexpr uint32_t kStartCodeBytes = 4;
uint32_t local_length = length - pseudo_nal_count * pseudo_nal_length_field_bytes_ +
pseudo_nal_count * kStartCodeBytes;
std::unique_ptr<uint8_t[]> local_buffer = std::make_unique<uint8_t[]>(local_length);
uint8_t* local_data = local_buffer.get();
i = 0;
uint32_t o = 0;
while (i < length) {
if (i + pseudo_nal_length_field_bytes_ > length) {
LOG(ERROR, "i + pseudo_nal_length_field_bytes_ > length");
OnCoreCodecFailStream(fuchsia::media::StreamError::DECODER_UNKNOWN);
return {};
}
uint32_t pseudo_nal_length = 0;
for (uint32_t length_byte = 0; length_byte < pseudo_nal_length_field_bytes_; ++length_byte) {
pseudo_nal_length = pseudo_nal_length * 256 + data[i + length_byte];
}
i += pseudo_nal_length_field_bytes_;
if (i + pseudo_nal_length > length) {
LOG(ERROR, "i + pseudo_nal_length > length");
OnCoreCodecFailStream(fuchsia::media::StreamError::DECODER_UNKNOWN);
return {};
}
local_data[o++] = 0;
local_data[o++] = 0;
local_data[o++] = 0;
local_data[o++] = 1;
memcpy(&local_data[o], &data[i], pseudo_nal_length);
o += pseudo_nal_length;
i += pseudo_nal_length;
}
ZX_DEBUG_ASSERT(o == local_length);
ZX_DEBUG_ASSERT(i == length);
return ParseVideoAnnexB(nullptr, local_data, local_length);
}
std::optional<H264MultiDecoder::DataInput> CodecAdapterH264Multi::ParseVideoAnnexB(
const CodecBuffer* buffer, const uint8_t* data, uint32_t length) {
H264MultiDecoder::DataInput result;
result.data = std::vector<uint8_t>(data, data + length);
return std::move(result);
}
void CodecAdapterH264Multi::OnEos() { events_->onCoreCodecOutputEndOfStream(false); }
zx_status_t CodecAdapterH264Multi::InitializeFrames(::zx::bti bti, uint32_t min_frame_count,
uint32_t max_frame_count, uint32_t width,
uint32_t height, uint32_t stride,
uint32_t display_width, uint32_t display_height,
bool has_sar, uint32_t sar_width,
uint32_t sar_height) {
// This is called on a core codec thread, ordered with respect to emitted
// output frames. This method needs to block until either:
// * Format details have been delivered to the Codec client and the Codec
// client has configured corresponding output buffers.
// * The client has moved on by closing the current stream, in which case
// this method needs to fail quickly so the core codec can be stopped.
//
// The video_decoder_lock_ is held during this method. We don't release the
// video_decoder_lock_ while waiting for the client, because we want close of
// the current stream to wait for this method to return before starting the
// portion of stream close protected by video_decoder_lock_.
//
// The signalling to un-block this thread uses lock_.
//
// TODO(dustingreen): It can happen that the current set of buffers is already
// suitable for use under the new buffer constraints. However, some of the
// buffers can still be populated with data and used by other parts of the
// system, so to re-use buffers, we'll need a way to communicate which buffers
// are not presently available to decode into, even for what h264_decoder.cc
// sees as a totally new set of buffers. The h264_decoder.cc doesn't seem to
// separate configuration of a buffer from marking that buffer ready to fill.
// It seems like "new" buffers are immediately ready to fill. At the moment,
// the AmlogicVideo code doesn't appear to show any way to tell the HW which
// frames are presently still in use (not yet available to decode into),
// during InitializeStream(). Maybe delaying configuring of a canvas would
// work, but in that case would the delayed configuring adversely impact
// decoding performance consistency? If we can do this, detect when we can,
// and call onCoreCodecMidStreamOutputConstraintsChange() but pass false
// instead of true, and don't expect a response or block in here. Still have
// to return the vector of buffers, and will need to indicate which are
// actually available to decode into. The rest will get indicated via
// CoreCodecRecycleOutputPacket(), despite not necessarily getting signalled
// to the HW by H264Decoder::ReturnFrame further down. For now, we always
// re-allocate buffers. Old buffers still active elsewhere in the system can
// continue to be referenced by those parts of the system - the important
// thing for now is we avoid overwriting the content of those buffers by using
// an entirely new set of buffers for each stream for now.
// First stash some format and buffer count info needed to initialize frames
// before triggering mid-stream format change. Later, frames satisfying these
// stashed parameters will be handed to the decoder via InitializedFrames(),
// unless CoreCodecStopStream() happens first.
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
min_buffer_count_[kOutputPort] = min_frame_count;
max_buffer_count_[kOutputPort] = max_frame_count;
width_ = width;
height_ = height;
min_stride_ = stride;
display_width_ = display_width;
display_height_ = display_height;
has_sar_ = has_sar;
sar_width_ = sar_width;
sar_height_ = sar_height;
} // ~lock
// This will snap the current stream_lifetime_ordinal_, and call
// CoreCodecMidStreamOutputBufferReConfigPrepare() and
// CoreCodecMidStreamOutputBufferReConfigFinish() from the StreamControl
// thread, _iff_ the client hasn't already moved on to a new stream by then.
events_->onCoreCodecMidStreamOutputConstraintsChange(true);
return ZX_OK;
}
void CodecAdapterH264Multi::AsyncResetStreamAfterCurrentFrame() {
LOG(ERROR, "async reset stream (after current frame) triggered");
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
// The current stream is temporarily failed, until CoreCodecResetStreamAfterCurrentFrame() soon
// on the StreamControl thread. This prevents ReadMoreInputData() from queueing any more input
// data after any currently-running iteration.
//
// While Vp9Decoder::needs_more_input_data() may already be returning false which may serve a
// similar purpose depending on how/when Vp9Decoder calls this method, it's nice to directly
// mute queing any more input in this layer.
is_stream_failed_ = true;
} // ~lock
events_->onCoreCodecResetStreamAfterCurrentFrame();
}
void CodecAdapterH264Multi::CoreCodecResetStreamAfterCurrentFrame() {
// Currently this takes ~20-40ms per reset. We might be able to improve the performance by having
// a stop that doesn't deallocate followed by a start that doesn't allocate, but since we'll
// fairly soon only be using this method during watchdog processing, it's not worth optimizing for
// the temporary time interval during which we might potentially use this on multiple
// non-keyframes in a row before a keyframe, only in the case of protected input.
//
// If we were to optimize in that way, it'd increase the complexity of init and de-init code. The
// current way we use that code exactly the same way for reset as for init and de-init, which is
// good from a test coverage point of view.
// This fences and quiesces the input processing thread, and the current StreamControl thread is
// the only other thread that modifies is_input_end_of_stream_queued_to_core_, so we know
// is_input_end_of_stream_queued_to_core_ won't be changing.
LOG(TRACE, "before CoreCodecStopStreamInternal()");
std::list<CodecInputItem> input_items = CoreCodecStopStreamInternal();
auto return_any_input_items = fit::defer([this, &input_items] {
for (auto& input_item : input_items) {
if (input_item.is_packet()) {
events_->onCoreCodecInputPacketDone(std::move(input_item.packet()));
}
}
});
if (is_input_end_of_stream_queued_to_core_) {
// We don't handle this corner case of a corner case. Fail the stream instead.
events_->onCoreCodecFailStream(fuchsia::media::StreamError::EOS_PROCESSING);
return;
}
LOG(TRACE, "after stop; before CoreCodecStartStream()");
CoreCodecStartStream();
LOG(TRACE, "re-queueing items...");
while (!input_items.empty()) {
QueueInputItem(std::move(input_items.front()));
input_items.pop_front();
}
LOG(TRACE, "done re-queueing items.");
}
void CodecAdapterH264Multi::OnCoreCodecFailStream(fuchsia::media::StreamError error) {
{ // scope lock
std::lock_guard<std::mutex> lock(lock_);
is_stream_failed_ = true;
}
LOG(ERROR, "calling events_->onCoreCodecFailStream()");
events_->onCoreCodecFailStream(error);
}
CodecPacket* CodecAdapterH264Multi::GetFreePacket() {
std::lock_guard<std::mutex> lock(lock_);
// The h264 decoder won't repeatedly output a buffer multiple times
// concurrently, so a free buffer (for which the caller needs a packet)
// implies a free packet.
ZX_DEBUG_ASSERT(!free_output_packets_.empty());
uint32_t free_index = free_output_packets_.back();
free_output_packets_.pop_back();
return all_output_packets_[free_index];
}
bool CodecAdapterH264Multi::IsPortSecureRequired(CodecPort port) {
return secure_memory_mode_[port] == fuchsia::mediacodec::SecureMemoryMode::ON;
}
bool CodecAdapterH264Multi::IsPortSecurePermitted(CodecPort port) {
return secure_memory_mode_[port] != fuchsia::mediacodec::SecureMemoryMode::OFF;
}
bool CodecAdapterH264Multi::IsPortSecure(CodecPort port) {
ZX_DEBUG_ASSERT(buffer_settings_[port]);
return buffer_settings_[port]->buffer_settings.is_secure;
}
bool CodecAdapterH264Multi::IsOutputSecure() {
// We need to know whether output is secure or not before we start accepting input, which means
// we need to know before output buffers are allocated, which means we can't rely on the result
// of sysmem BufferCollection allocation is_secure for output.
ZX_DEBUG_ASSERT(IsPortSecurePermitted(kOutputPort) == IsPortSecureRequired(kOutputPort));
return IsPortSecureRequired(kOutputPort);
}