#include "shared/timebase.h"
#include "va_display_with_cleanup.h"
+#include <movit/colorspace_conversion_effect.h>
+
#include <va/va.h>
#include <va/va_drm.h>
#include <va/va_x11.h>
+using namespace Eigen;
using namespace bmusb;
+using namespace movit;
using namespace std;
static VAImageFormat uyvy_format;
return buf_size;
}
+namespace {
+
+void add_video_stream(AVFormatContext *avctx)
+{
+ AVStream *stream = avformat_new_stream(avctx, nullptr);
+ if (stream == nullptr) {
+ fprintf(stderr, "avformat_new_stream() failed\n");
+ abort();
+ }
+
+ // FFmpeg is very picky about having audio at 1/48000 timebase,
+ // no matter what we write. Even though we'd prefer our usual 1/120000,
+ // put the video on the same one, so that we can have locked audio.
+ stream->time_base = AVRational{ 1, OUTPUT_FREQUENCY };
+ stream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+ stream->codecpar->codec_id = AV_CODEC_ID_MJPEG;
+
+ // Used for aspect ratio only. Can change without notice (the mux won't care).
+ stream->codecpar->width = global_flags.width;
+ stream->codecpar->height = global_flags.height;
+
+ // TODO: We could perhaps use the interpretation for each card here
+ // (or at least the command-line flags) instead of the defaults,
+ // but what would we do when they change?
+ stream->codecpar->color_primaries = AVCOL_PRI_BT709;
+ stream->codecpar->color_trc = AVCOL_TRC_IEC61966_2_1;
+ stream->codecpar->color_space = AVCOL_SPC_BT709;
+ stream->codecpar->color_range = AVCOL_RANGE_MPEG;
+ stream->codecpar->chroma_location = AVCHROMA_LOC_LEFT;
+ stream->codecpar->field_order = AV_FIELD_PROGRESSIVE;
+}
+
+void add_audio_stream(AVFormatContext *avctx)
+{
+ AVStream *stream = avformat_new_stream(avctx, nullptr);
+ if (stream == nullptr) {
+ fprintf(stderr, "avformat_new_stream() failed\n");
+ abort();
+ }
+ stream->time_base = AVRational{ 1, OUTPUT_FREQUENCY };
+ stream->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+ stream->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
+ stream->codecpar->channel_layout = AV_CH_LAYOUT_STEREO;
+ stream->codecpar->channels = 2;
+ stream->codecpar->sample_rate = OUTPUT_FREQUENCY;
+}
+
+void finalize_mux(AVFormatContext *avctx)
+{
+ AVDictionary *options = NULL;
+ vector<pair<string, string>> opts = MUX_OPTS;
+ for (pair<string, string> opt : opts) {
+ av_dict_set(&options, opt.first.c_str(), opt.second.c_str(), 0);
+ }
+ if (avformat_write_header(avctx, &options) < 0) {
+ fprintf(stderr, "avformat_write_header() failed\n");
+ abort();
+ }
+}
+
+} // namespace
+
MJPEGEncoder::MJPEGEncoder(HTTPD *httpd, const string &va_display)
: httpd(httpd)
{
// a situation with only one video stream (and possibly one audio stream)
// with known width/height, and we don't need the extra functionality it provides.
avctx.reset(avformat_alloc_context());
- avctx->oformat = av_guess_format("mp4", nullptr, nullptr);
+ avctx->oformat = av_guess_format("nut", nullptr, nullptr);
uint8_t *buf = (uint8_t *)av_malloc(MUX_BUFFER_SIZE);
avctx->pb = avio_alloc_context(buf, MUX_BUFFER_SIZE, 1, this, nullptr, nullptr, nullptr);
avctx->flags = AVFMT_FLAG_CUSTOM_IO;
for (unsigned card_idx = 0; card_idx < global_flags.card_to_mjpeg_stream_export.size(); ++card_idx) {
- AVStream *stream = avformat_new_stream(avctx.get(), nullptr);
- if (stream == nullptr) {
- fprintf(stderr, "avformat_new_stream() failed\n");
- exit(1);
- }
- stream->time_base = AVRational{ 1, TIMEBASE };
- stream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
- stream->codecpar->codec_id = AV_CODEC_ID_MJPEG;
-
- // Used for aspect ratio only. Can change without notice (the mux won't care).
- stream->codecpar->width = global_flags.width;
- stream->codecpar->height = global_flags.height;
-
- // TODO: We could perhaps use the interpretation for each card here
- // (or at least the command-line flags) instead of the defaults,
- // but what would we do when they change?
- stream->codecpar->color_primaries = AVCOL_PRI_BT709;
- stream->codecpar->color_trc = AVCOL_TRC_IEC61966_2_1;
- stream->codecpar->color_space = AVCOL_SPC_BT709;
- stream->codecpar->color_range = AVCOL_RANGE_MPEG;
- stream->codecpar->chroma_location = AVCHROMA_LOC_LEFT;
- stream->codecpar->field_order = AV_FIELD_PROGRESSIVE;
+ add_video_stream(avctx.get());
}
-
- AVDictionary *options = NULL;
- vector<pair<string, string>> opts = MUX_OPTS;
- for (pair<string, string> opt : opts) {
- av_dict_set(&options, opt.first.c_str(), opt.second.c_str(), 0);
- }
- if (avformat_write_header(avctx.get(), &options) < 0) {
- fprintf(stderr, "avformat_write_header() failed\n");
- exit(1);
+ for (unsigned card_idx = 0; card_idx < global_flags.card_to_mjpeg_stream_export.size(); ++card_idx) {
+ add_audio_stream(avctx.get());
}
+ finalize_mux(avctx.get());
// Initialize VA-API.
string error;
return va_dpy;
}
-void MJPEGEncoder::upload_frame(int64_t pts, unsigned card_index, RefCountedFrame frame, const bmusb::VideoFormat &video_format, size_t y_offset, size_t cbcr_offset)
+void MJPEGEncoder::upload_frame(int64_t pts, unsigned card_index, RefCountedFrame frame, const bmusb::VideoFormat &video_format, size_t y_offset, size_t cbcr_offset, vector<int32_t> audio, const RGBTriplet &white_balance)
{
PBOFrameAllocator::Userdata *userdata = (PBOFrameAllocator::Userdata *)frame->userdata;
if (video_format.width == 0 || video_format.height == 0) {
return;
}
++metric_mjpeg_overrun_submitted;
- frames_to_be_encoded.push(QueuedFrame{ pts, card_index, frame, video_format, y_offset, cbcr_offset });
+ frames_to_be_encoded.push(QueuedFrame{ pts, card_index, frame, video_format, y_offset, cbcr_offset, move(audio), white_balance });
any_frames_to_be_encoded.notify_all();
}
-void MJPEGEncoder::finish_frame(RefCountedFrame frame)
-{
- PBOFrameAllocator::Userdata *userdata = (PBOFrameAllocator::Userdata *)frame->userdata;
-
- if (userdata->data_copy_current_src == PBOFrameAllocator::Userdata::FROM_VA_API) {
- VAResources resources __attribute__((unused)) = move(userdata->va_resources);
- ReleaseVAResources release = move(userdata->va_resources_release);
-
- VAStatus va_status = vaUnmapBuffer(va_dpy->va_dpy, resources.image.buf);
- CHECK_VASTATUS(va_status, "vaUnmapBuffer");
- }
-}
-
int MJPEGEncoder::get_mjpeg_stream_for_card(unsigned card_index)
{
// Only bother doing MJPEG encoding if there are any connected clients
// Will call back in the receiver thread.
encode_jpeg_va(move(qf));
} else {
+ // Write audio before video, since Futatabi expects it.
+ if (qf.audio.size() > 0) {
+ write_audio_packet(qf.pts, qf.card_index, qf.audio);
+ }
+
// Encode synchronously, in the same thread.
vector<uint8_t> jpeg = encode_jpeg_libjpeg(qf);
write_mjpeg_packet(qf.pts, qf.card_index, jpeg.data(), jpeg.size());
pkt.flags = AV_PKT_FLAG_KEY;
AVRational time_base = avctx->streams[pkt.stream_index]->time_base;
pkt.pts = pkt.dts = av_rescale_q(pts, AVRational{ 1, TIMEBASE }, time_base);
+ pkt.duration = 0;
if (av_write_frame(avctx.get(), &pkt) < 0) {
fprintf(stderr, "av_write_frame() failed\n");
- exit(1);
+ abort();
+ }
+}
+
+void MJPEGEncoder::write_audio_packet(int64_t pts, unsigned card_index, const vector<int32_t> &audio)
+{
+ AVPacket pkt;
+ memset(&pkt, 0, sizeof(pkt));
+ pkt.buf = nullptr;
+ pkt.data = reinterpret_cast<uint8_t *>(const_cast<int32_t *>(&audio[0]));
+ pkt.size = audio.size() * sizeof(audio[0]);
+ pkt.stream_index = card_index + global_flags.card_to_mjpeg_stream_export.size();
+ pkt.flags = AV_PKT_FLAG_KEY;
+ AVRational time_base = avctx->streams[pkt.stream_index]->time_base;
+ pkt.pts = pkt.dts = av_rescale_q(pts, AVRational{ 1, TIMEBASE }, time_base);
+ size_t num_stereo_samples = audio.size() / 2;
+ pkt.duration = av_rescale_q(num_stereo_samples, AVRational{ 1, OUTPUT_FREQUENCY }, time_base);
+
+ if (av_write_frame(avctx.get(), &pkt) < 0) {
+ fprintf(stderr, "av_write_frame() failed\n");
+ abort();
}
}
va_status = vaDestroySurfaces(va_dpy->va_dpy, &it->surface, 1);
CHECK_VASTATUS(va_status, "vaDestroySurfaces");
+ va_status = vaDestroyImage(va_dpy->va_dpy, it->image.image_id);
+ CHECK_VASTATUS(va_status, "vaDestroyImage");
+
va_resources_freelist.erase(it);
}
va_resources_freelist.push_front(resources);
}
-void MJPEGEncoder::init_jpeg_422(unsigned width, unsigned height, VectorDestinationManager *dest, jpeg_compress_struct *cinfo)
+namespace {
+
+void push16(uint16_t val, string *str)
+{
+ str->push_back(val >> 8);
+ str->push_back(val & 0xff);
+}
+
+void push32(uint32_t val, string *str)
+{
+ str->push_back(val >> 24);
+ str->push_back((val >> 16) & 0xff);
+ str->push_back((val >> 8) & 0xff);
+ str->push_back(val & 0xff);
+}
+
+} // namespace
+
+void MJPEGEncoder::init_jpeg_422(unsigned width, unsigned height, const RGBTriplet &white_balance, VectorDestinationManager *dest, jpeg_compress_struct *cinfo)
{
jpeg_error_mgr jerr;
cinfo->err = jpeg_std_error(&jerr);
cinfo->CCIR601_sampling = true; // Seems to be mostly ignored by libjpeg, though.
jpeg_start_compress(cinfo, true);
+ if (fabs(white_balance.r - 1.0f) > 1e-3 ||
+ fabs(white_balance.g - 1.0f) > 1e-3 ||
+ fabs(white_balance.b - 1.0f) > 1e-3) {
+ // Convert from (linear) RGB to XYZ.
+ Matrix3d rgb_to_xyz_matrix = movit::ColorspaceConversionEffect::get_xyz_matrix(COLORSPACE_sRGB);
+ Vector3d xyz = rgb_to_xyz_matrix * Vector3d(white_balance.r, white_balance.g, white_balance.b);
+
+ // Convert from XYZ to xyz by normalizing.
+ xyz /= (xyz[0] + xyz[1] + xyz[2]);
+
+ // Create a very rudimentary EXIF header to hold our white point.
+ string exif;
+
+ // Exif header, followed by some padding.
+ exif = "Exif";
+ push16(0, &exif);
+
+ // TIFF header first:
+ exif += "MM"; // Big endian.
+
+ // Magic number.
+ push16(42, &exif);
+
+ // Offset of first IFD (relative to the MM, immediately after the header).
+ push32(exif.size() - 6 + 4, &exif);
+
+ // Now the actual IFD.
+
+ // One entry.
+ push16(1, &exif);
+
+ // WhitePoint tag ID.
+ push16(0x13e, &exif);
+
+ // Rational type.
+ push16(5, &exif);
+
+ // Two values (x and y; z is implicit due to normalization).
+ push32(2, &exif);
+
+ // Offset (relative to the MM, immediately after the last IFD).
+ push32(exif.size() - 6 + 8, &exif);
+
+ // No more IFDs.
+ push32(0, &exif);
+
+ // The actual values.
+ push32(lrintf(xyz[0] * 10000.0f), &exif);
+ push32(10000, &exif);
+ push32(lrintf(xyz[1] * 10000.0f), &exif);
+ push32(10000, &exif);
+
+ jpeg_write_marker(cinfo, JPEG_APP0 + 1, (const JOCTET *)exif.data(), exif.size());
+ }
+
// This comment marker is private to FFmpeg. It signals limited Y'CbCr range
// (and nothing else).
jpeg_write_marker(cinfo, JPEG_COM, (const JOCTET *)"CS=ITU601", strlen("CS=ITU601"));
}
-vector<uint8_t> MJPEGEncoder::get_jpeg_header(unsigned width, unsigned height, jpeg_compress_struct *cinfo)
+vector<uint8_t> MJPEGEncoder::get_jpeg_header(unsigned width, unsigned height, const RGBTriplet &white_balance, jpeg_compress_struct *cinfo)
{
VectorDestinationManager dest;
- init_jpeg_422(width, height, &dest, cinfo);
+ init_jpeg_422(width, height, white_balance, &dest, cinfo);
// Make a dummy black image; there's seemingly no other easy way of
// making libjpeg outputting all of its headers.
return dest.dest;
}
-MJPEGEncoder::VAData MJPEGEncoder::get_va_data_for_resolution(unsigned width, unsigned height)
+MJPEGEncoder::VAData MJPEGEncoder::get_va_data_for_resolution(unsigned width, unsigned height, const RGBTriplet &white_balance)
{
pair<unsigned, unsigned> key(width, height);
if (va_data_for_resolution.count(key)) {
// Use libjpeg to generate a header and set sane defaults for e.g.
// quantization tables. Then do the actual encode with VA-API.
jpeg_compress_struct cinfo;
- vector<uint8_t> jpeg_header = get_jpeg_header(width, height, &cinfo);
+ vector<uint8_t> jpeg_header = get_jpeg_header(width, height, white_balance, &cinfo);
// Picture parameters.
VAEncPictureParameterBufferJPEG pic_param;
release = ReleaseVAResources(this, resources);
}
- VAData va_data = get_va_data_for_resolution(width, height);
+ VAData va_data = get_va_data_for_resolution(width, height, qf.white_balance);
va_data.pic_param.coded_buf = resources.data_buffer;
VABufferID pic_param_buffer;
VABufferDestroyer destroy_slice_param(va_dpy->va_dpy, slice_param_buffer);
if (userdata->data_copy_current_src == PBOFrameAllocator::Userdata::FROM_VA_API) {
+ // The pixel data is already put into the image by the caller.
va_status = vaUnmapBuffer(va_dpy->va_dpy, resources.image.buf);
CHECK_VASTATUS(va_status, "vaUnmapBuffer");
- // The pixel data is already put into the image by the caller.
} else {
assert(userdata->data_copy_current_src == PBOFrameAllocator::Userdata::FROM_MALLOC);
CHECK_VASTATUS(va_status, "vaUnmapBuffer");
}
+ qf.frame->data_copy = nullptr;
+
// Seemingly vaPutImage() (which triggers a GPU copy) is much nicer to the
// CPU than vaDeriveImage() and copying directly into the GPU's buffers.
// Exactly why is unclear, but it seems to involve L3 cache usage when there
frames_encoding.pop();
}
+ // Write audio before video, since Futatabi expects it.
+ if (qf.audio.size() > 0) {
+ write_audio_packet(qf.pts, qf.card_index, qf.audio);
+ }
+
VAStatus va_status = vaSyncSurface(va_dpy->va_dpy, qf.resources.surface);
CHECK_VASTATUS(va_status, "vaSyncSurface");
VectorDestinationManager dest;
jpeg_compress_struct cinfo;
- init_jpeg_422(width, height, &dest, &cinfo);
+ init_jpeg_422(width, height, qf.white_balance, &dest, &cinfo);
size_t field_start_line = qf.video_format.extra_lines_top; // No interlacing support.
size_t field_start = qf.cbcr_offset * 2 + qf.video_format.width * field_start_line * 2;
for (unsigned y = 0; y < qf.video_format.height; y += 8) {
const uint8_t *src = qf.frame->data_copy + field_start + y * qf.video_format.width * 2;
- memcpy_interleaved(tmp_y, tmp_cbcr, src, qf.video_format.width * 8 * 2);
+ memcpy_interleaved(tmp_cbcr, tmp_y, src, qf.video_format.width * 8 * 2);
memcpy_interleaved(tmp_cb, tmp_cr, tmp_cbcr, qf.video_format.width * 8);
for (unsigned yy = 0; yy < 8; ++yy) {
yptr[yy] = tmp_y + yy * width;
projects / nageru / blobdiff