#include "defs.h"
#include "flags.h"
#include "httpd.h"
+#include "mux.h"
#include "timebase.h"
#include "x264encode.h"
return make_pair(-pts, storage.second); // Re-invert pts (see reorder_frame()).
}
-class H264EncoderImpl {
+class H264EncoderImpl : public KeyFrameSignalReceiver {
public:
H264EncoderImpl(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd);
~H264EncoderImpl();
void open_output_file(const std::string &filename);
void close_output_file();
+ virtual void signal_keyframe() override {
+ stream_mux_writing_keyframes = true;
+ }
+
private:
struct storage_task {
unsigned long long display_order;
int64_t audio_pts,
AVCodecContext *ctx,
AVAudioResampleContext *resampler,
- const vector<PacketDestination *> &destinations);
+ const vector<Mux *> &muxes);
void encode_audio_one_frame(const float *audio,
size_t num_samples, // In each channel.
int64_t audio_pts,
AVCodecContext *ctx,
AVAudioResampleContext *resampler,
- const vector<PacketDestination *> &destinations);
+ const vector<Mux *> &muxes);
void storage_task_enqueue(storage_task task);
void save_codeddata(storage_task task);
int render_packedsequence();
int release_encode();
void update_ReferenceFrames(int frame_type);
int update_RefPicList(int frame_type);
+ void open_output_stream();
+ void close_output_stream();
+ static int write_packet_thunk(void *opaque, uint8_t *buf, int buf_size);
+ int write_packet(uint8_t *buf, int buf_size);
bool is_shutdown = false;
bool use_zerocopy;
int frame_width_mbaligned;
int frame_height_mbaligned;
+ unique_ptr<Mux> stream_mux; // To HTTP.
unique_ptr<Mux> file_mux; // To local disk.
+
+ // While Mux object is constructing, <stream_mux_writing_header> is true,
+ // and the header is being collected into stream_mux_header.
+ bool stream_mux_writing_header;
+ string stream_mux_header;
+
+ bool stream_mux_writing_keyframes = false;
};
// Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
}
if (!global_flags.uncompressed_video_to_http &&
!global_flags.x264_video_to_http) {
- httpd->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
+ stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
}
}
// Encode and add all audio frames up to and including the pts of this video frame.
if (context_audio_stream) {
encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { file_mux.get() });
- encode_audio(audio, &audio_queue_stream, audio_pts, context_audio_stream, resampler_audio_stream, { httpd });
+ encode_audio(audio, &audio_queue_stream, audio_pts, context_audio_stream, resampler_audio_stream, { stream_mux.get() });
} else {
- encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { httpd, file_mux.get() });
+ encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { stream_mux.get(), file_mux.get() });
}
if (audio_pts == task.pts) break;
int64_t audio_pts,
AVCodecContext *ctx,
AVAudioResampleContext *resampler,
- const vector<PacketDestination *> &destinations)
+ const vector<Mux *> &muxes)
{
if (ctx->frame_size == 0) {
// No queueing needed.
assert(audio_queue->empty());
assert(audio.size() % 2 == 0);
- encode_audio_one_frame(&audio[0], audio.size() / 2, audio_pts, ctx, resampler, destinations);
+ encode_audio_one_frame(&audio[0], audio.size() / 2, audio_pts, ctx, resampler, muxes);
return;
}
adjusted_audio_pts,
ctx,
resampler,
- destinations);
+ muxes);
}
audio_queue->erase(audio_queue->begin(), audio_queue->begin() + sample_num);
}
int64_t audio_pts,
AVCodecContext *ctx,
AVAudioResampleContext *resampler,
- const vector<PacketDestination *> &destinations)
+ const vector<Mux *> &muxes)
{
audio_frame->nb_samples = num_samples;
audio_frame->channel_layout = AV_CH_LAYOUT_STEREO;
avcodec_encode_audio2(ctx, &pkt, audio_frame, &got_output);
if (got_output) {
pkt.stream_index = 1;
- pkt.flags = AV_PKT_FLAG_KEY;
- for (PacketDestination *dest : destinations) {
- dest->add_packet(pkt, audio_pts + global_delay(), audio_pts + global_delay());
+ pkt.flags = 0;
+ for (Mux *mux : muxes) {
+ mux->add_packet(pkt, audio_pts + global_delay(), audio_pts + global_delay());
}
}
} // namespace
H264EncoderImpl::H264EncoderImpl(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd)
- : current_storage_frame(0), surface(surface), httpd(httpd)
+ : current_storage_frame(0), surface(surface), httpd(httpd), frame_width(width), frame_height(height)
{
init_audio_encoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, &context_audio_file, &resampler_audio_file);
global_flags.stream_audio_codec_bitrate, &context_audio_stream, &resampler_audio_stream);
}
- audio_frame = av_frame_alloc();
-
- frame_width = width;
- frame_height = height;
frame_width_mbaligned = (frame_width + 15) & (~15);
frame_height_mbaligned = (frame_height + 15) & (~15);
+ open_output_stream();
+
+ audio_frame = av_frame_alloc();
+
//print_input();
if (global_flags.uncompressed_video_to_http ||
reorderer.reset(new FrameReorderer(ip_period - 1, frame_width, frame_height));
}
if (global_flags.x264_video_to_http) {
- x264_encoder.reset(new X264Encoder(httpd));
+ x264_encoder.reset(new X264Encoder(stream_mux.get()));
}
init_va(va_display);
avresample_free(&resampler_audio_stream);
avcodec_free_context(&context_audio_file);
avcodec_free_context(&context_audio_stream);
+ close_output_stream();
}
bool H264EncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
exit(1);
}
- file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, context_audio_file->codec, TIMEBASE, DEFAULT_AUDIO_OUTPUT_BIT_RATE));
+ file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, context_audio_file->codec, TIMEBASE, DEFAULT_AUDIO_OUTPUT_BIT_RATE, nullptr));
}
void H264EncoderImpl::close_output_file()
file_mux.reset();
}
+void H264EncoderImpl::open_output_stream()
+{
+ AVFormatContext *avctx = avformat_alloc_context();
+ AVOutputFormat *oformat = av_guess_format(global_flags.stream_mux_name.c_str(), nullptr, nullptr);
+ assert(oformat != nullptr);
+ avctx->oformat = oformat;
+
+ string codec_name;
+ int bit_rate;
+
+ if (global_flags.stream_audio_codec_name.empty()) {
+ codec_name = AUDIO_OUTPUT_CODEC_NAME;
+ bit_rate = DEFAULT_AUDIO_OUTPUT_BIT_RATE;
+ } else {
+ codec_name = global_flags.stream_audio_codec_name;
+ bit_rate = global_flags.stream_audio_codec_bitrate;
+ }
+
+ uint8_t *buf = (uint8_t *)av_malloc(MUX_BUFFER_SIZE);
+ avctx->pb = avio_alloc_context(buf, MUX_BUFFER_SIZE, 1, this, nullptr, &H264EncoderImpl::write_packet_thunk, nullptr);
+
+ Mux::Codec video_codec;
+ if (global_flags.uncompressed_video_to_http) {
+ video_codec = Mux::CODEC_NV12;
+ } else {
+ video_codec = Mux::CODEC_H264;
+ }
+
+ avctx->flags = AVFMT_FLAG_CUSTOM_IO;
+ AVCodec *codec_audio = avcodec_find_encoder_by_name(codec_name.c_str());
+ if (codec_audio == nullptr) {
+ fprintf(stderr, "ERROR: Could not find codec '%s'\n", codec_name.c_str());
+ exit(1);
+ }
+
+ int time_base = global_flags.stream_coarse_timebase ? COARSE_TIMEBASE : TIMEBASE;
+ stream_mux_writing_header = true;
+ stream_mux.reset(new Mux(avctx, frame_width, frame_height, video_codec, codec_audio, time_base, bit_rate, this));
+ stream_mux_writing_header = false;
+ httpd->set_header(stream_mux_header);
+ stream_mux_header.clear();
+}
+
+void H264EncoderImpl::close_output_stream()
+{
+ stream_mux.reset();
+}
+
+int H264EncoderImpl::write_packet_thunk(void *opaque, uint8_t *buf, int buf_size)
+{
+ H264EncoderImpl *h264_encoder = (H264EncoderImpl *)opaque;
+ return h264_encoder->write_packet(buf, buf_size);
+}
+
+int H264EncoderImpl::write_packet(uint8_t *buf, int buf_size)
+{
+ if (stream_mux_writing_header) {
+ stream_mux_header.append((char *)buf, buf_size);
+ } else {
+ httpd->add_data((char *)buf, buf_size, stream_mux_writing_keyframes);
+ stream_mux_writing_keyframes = false;
+ }
+ return buf_size;
+}
+
void H264EncoderImpl::encode_thread_func()
{
int64_t last_dts = -1;
pkt.size = frame_width * frame_height * 2;
pkt.stream_index = 0;
pkt.flags = AV_PKT_FLAG_KEY;
- httpd->add_packet(pkt, pts, pts);
+ stream_mux->add_packet(pkt, pts, pts);
}
namespace {
projects / nageru / blobdiff