d71a231c49
Note: some of these warnings are enabled by a combination of -Wunused (added earlier) and -Wextra. Cherry-picked from aomedia/master: 4790a69 Change-Id: I322a1366bd4fd6c0dec9e758c2d5e88e003b1cbf
97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include "./webmenc.h"
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#include <string>
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#include "third_party/libwebm/mkvmuxer/mkvmuxer.h"
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#include "third_party/libwebm/mkvmuxer/mkvmuxerutil.h"
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#include "third_party/libwebm/mkvmuxer/mkvwriter.h"
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namespace {
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const uint64_t kDebugTrackUid = 0xDEADBEEF;
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const int kVideoTrackNumber = 1;
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} // namespace
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void write_webm_file_header(struct WebmOutputContext *webm_ctx,
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const aom_codec_enc_cfg_t *cfg,
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stereo_format_t stereo_fmt, unsigned int fourcc,
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const struct AvxRational *par) {
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mkvmuxer::MkvWriter *const writer = new mkvmuxer::MkvWriter(webm_ctx->stream);
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mkvmuxer::Segment *const segment = new mkvmuxer::Segment();
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segment->Init(writer);
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segment->set_mode(mkvmuxer::Segment::kFile);
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segment->OutputCues(true);
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mkvmuxer::SegmentInfo *const info = segment->GetSegmentInfo();
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const uint64_t kTimecodeScale = 1000000;
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info->set_timecode_scale(kTimecodeScale);
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std::string version = "aomenc";
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if (!webm_ctx->debug) {
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version.append(std::string(" ") + aom_codec_version_str());
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}
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info->set_writing_app(version.c_str());
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const uint64_t video_track_id =
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segment->AddVideoTrack(static_cast<int>(cfg->g_w),
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static_cast<int>(cfg->g_h), kVideoTrackNumber);
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mkvmuxer::VideoTrack *const video_track = static_cast<mkvmuxer::VideoTrack *>(
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segment->GetTrackByNumber(video_track_id));
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video_track->SetStereoMode(stereo_fmt);
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const char *codec_id;
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switch (fourcc) {
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case AV1_FOURCC: codec_id = "V_AV1"; break;
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default: codec_id = "V_AV1"; break;
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}
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video_track->set_codec_id(codec_id);
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if (par->numerator > 1 || par->denominator > 1) {
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// TODO(fgalligan): Add support of DisplayUnit, Display Aspect Ratio type
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// to WebM format.
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const uint64_t display_width = static_cast<uint64_t>(
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((cfg->g_w * par->numerator * 1.0) / par->denominator) + .5);
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video_track->set_display_width(display_width);
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video_track->set_display_height(cfg->g_h);
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}
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if (webm_ctx->debug) {
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video_track->set_uid(kDebugTrackUid);
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}
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webm_ctx->writer = writer;
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webm_ctx->segment = segment;
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}
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void write_webm_block(struct WebmOutputContext *webm_ctx,
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const aom_codec_enc_cfg_t *cfg,
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const aom_codec_cx_pkt_t *pkt) {
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mkvmuxer::Segment *const segment =
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reinterpret_cast<mkvmuxer::Segment *>(webm_ctx->segment);
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int64_t pts_ns = pkt->data.frame.pts * 1000000000ll * cfg->g_timebase.num /
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cfg->g_timebase.den;
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if (pts_ns <= webm_ctx->last_pts_ns) pts_ns = webm_ctx->last_pts_ns + 1000000;
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webm_ctx->last_pts_ns = pts_ns;
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segment->AddFrame(static_cast<uint8_t *>(pkt->data.frame.buf),
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pkt->data.frame.sz, kVideoTrackNumber, pts_ns,
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pkt->data.frame.flags & AOM_FRAME_IS_KEY);
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}
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void write_webm_file_footer(struct WebmOutputContext *webm_ctx) {
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mkvmuxer::MkvWriter *const writer =
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reinterpret_cast<mkvmuxer::MkvWriter *>(webm_ctx->writer);
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mkvmuxer::Segment *const segment =
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reinterpret_cast<mkvmuxer::Segment *>(webm_ctx->segment);
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segment->Finalize();
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delete segment;
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delete writer;
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webm_ctx->writer = NULL;
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webm_ctx->segment = NULL;
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}
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