X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_examiner.cc;h=3fb9a53e4618f49e6f4aedb82780e9f10de541b3;hb=3f9b394d57e750624d361f5daae6db77079f862a;hp=4d10aabbb85daf819f127a6946888446e56121ec;hpb=28387574433feaa828b8f2fce8ac55c1ac4b3b4e;p=dcpomatic.git diff --git a/src/lib/ffmpeg_examiner.cc b/src/lib/ffmpeg_examiner.cc index 4d10aabbb..3fb9a53e4 100644 --- a/src/lib/ffmpeg_examiner.cc +++ b/src/lib/ffmpeg_examiner.cc @@ -1,38 +1,54 @@ /* - Copyright (C) 2013 Carl Hetherington + Copyright (C) 2013-2015 Carl Hetherington - This program is free software; you can redistribute it and/or modify + This file is part of DCP-o-matic. + + DCP-o-matic is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + DCP-o-matic is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + along with DCP-o-matic. If not, see . */ extern "C" { #include #include +#include +#include +#include +#include } #include "ffmpeg_examiner.h" #include "ffmpeg_content.h" +#include "job.h" +#include "ffmpeg_audio_stream.h" +#include "ffmpeg_subtitle_stream.h" +#include "util.h" +#include +#include + +#include "i18n.h" using std::string; using std::cout; using std::max; -using std::stringstream; using boost::shared_ptr; using boost::optional; +using namespace dcpomatic; -FFmpegExaminer::FFmpegExaminer (shared_ptr c) - : FFmpeg (c, true) +/** @param job job that the examiner is operating in, or 0 */ +FFmpegExaminer::FFmpegExaminer (shared_ptr c, shared_ptr job) + : FFmpeg (c) + , _video_length (0) + , _need_video_length (false) { /* Find audio and subtitle streams */ @@ -47,124 +63,341 @@ FFmpegExaminer::FFmpegExaminer (shared_ptr c) if (s->codec->channel_layout == 0) { s->codec->channel_layout = av_get_default_channel_layout (s->codec->channels); } - + + DCPOMATIC_ASSERT (_format_context->duration != AV_NOPTS_VALUE); + DCPOMATIC_ASSERT (s->codec->codec); + DCPOMATIC_ASSERT (s->codec->codec->name); + _audio_streams.push_back ( shared_ptr ( - new FFmpegAudioStream (stream_name (s), i, s->codec->sample_rate, s->codec->channels) + new FFmpegAudioStream ( + stream_name (s), + s->codec->codec->name, + s->id, + s->codec->sample_rate, + llrint ((double (_format_context->duration) / AV_TIME_BASE) * s->codec->sample_rate), + s->codec->channels + ) ) ); } else if (s->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) { - _subtitle_streams.push_back (shared_ptr (new FFmpegSubtitleStream (stream_name (s), i))); + _subtitle_streams.push_back (shared_ptr (new FFmpegSubtitleStream (subtitle_stream_name (s), s->id))); + } + } + + if (has_video ()) { + /* See if the header has duration information in it */ + _need_video_length = _format_context->duration == AV_NOPTS_VALUE; + if (!_need_video_length) { + _video_length = llrint ((double (_format_context->duration) / AV_TIME_BASE) * video_frame_rate().get()); } } - /* Run through until we find the first audio (for each stream) and video */ + if (job && _need_video_length) { + job->sub (_("Finding length")); + } - while (1) { + /* Run through until we find: + * - the first video. + * - the first audio for each stream. + */ + + int64_t const len = _file_group.length (); + while (true) { int r = av_read_frame (_format_context, &_packet); if (r < 0) { break; } - int frame_finished; - avcodec_get_frame_defaults (_frame); + if (job) { + if (len > 0) { + job->set_progress (float (_format_context->pb->pos) / len); + } else { + job->set_progress_unknown (); + } + } AVCodecContext* context = _format_context->streams[_packet.stream_index]->codec; - if (_packet.stream_index == _video_stream && !_first_video) { - if (avcodec_decode_video2 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) { - _first_video = frame_time (_video_stream); + if (_video_stream && _packet.stream_index == _video_stream.get()) { + video_packet (context); + } + + bool got_all_audio = true; + + for (size_t i = 0; i < _audio_streams.size(); ++i) { + if (_audio_streams[i]->uses_index (_format_context, _packet.stream_index)) { + audio_packet (context, _audio_streams[i]); } - } else { - for (size_t i = 0; i < _audio_streams.size(); ++i) { - if (_packet.stream_index == _audio_streams[i]->id && !_audio_streams[i]->first_audio) { - if (avcodec_decode_audio4 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) { - _audio_streams[i]->first_audio = frame_time (_audio_streams[i]->id); - } - } + if (!_audio_streams[i]->first_audio) { + got_all_audio = false; } } - bool have_all_audio = true; - size_t i = 0; - while (i < _audio_streams.size() && have_all_audio) { - have_all_audio = _audio_streams[i]->first_audio; - ++i; - } + av_packet_unref (&_packet); - av_free_packet (&_packet); - - if (_first_video && have_all_audio) { + if (_first_video && got_all_audio) { + /* All done */ break; } } + + if (_video_stream) { + /* This code taken from get_rotation() in ffmpeg:cmdutils.c */ + AVStream* stream = _format_context->streams[*_video_stream]; + AVDictionaryEntry* rotate_tag = av_dict_get (stream->metadata, "rotate", 0, 0); + uint8_t* displaymatrix = av_stream_get_side_data (stream, AV_PKT_DATA_DISPLAYMATRIX, 0); + _rotation = 0; + + if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) { + char *tail; + _rotation = av_strtod (rotate_tag->value, &tail); + if (*tail) { + _rotation = 0; + } + } + + if (displaymatrix && !_rotation) { + _rotation = - av_display_rotation_get ((int32_t*) displaymatrix); + } + + _rotation = *_rotation - 360 * floor (*_rotation / 360 + 0.9 / 360); + + DCPOMATIC_ASSERT (fabs (*_rotation - 90 * round (*_rotation / 90)) < 2); + } + +#ifdef DCPOMATIC_VARIANT_SWAROOP + AVDictionaryEntry* e = av_dict_get (_format_context->metadata, SWAROOP_ID_TAG, 0, 0); + if (e) { + _id = e->value; + } +#endif } -optional -FFmpegExaminer::frame_time (int stream) const +void +FFmpegExaminer::video_packet (AVCodecContext* context) +{ + DCPOMATIC_ASSERT (_video_stream); + + if (_first_video && !_need_video_length) { + return; + } + + int frame_finished; + if (avcodec_decode_video2 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) { + if (!_first_video) { + _first_video = frame_time (_format_context->streams[_video_stream.get()]); + } + if (_need_video_length) { + _video_length = frame_time ( + _format_context->streams[_video_stream.get()] + ).get_value_or (ContentTime ()).frames_round (video_frame_rate().get ()); + } + } +} + +void +FFmpegExaminer::audio_packet (AVCodecContext* context, shared_ptr stream) { - optional t; - + if (stream->first_audio) { + return; + } + + int frame_finished; + if (avcodec_decode_audio4 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) { + stream->first_audio = frame_time (stream->stream (_format_context)); + } +} + +optional +FFmpegExaminer::frame_time (AVStream* s) const +{ + optional t; + int64_t const bet = av_frame_get_best_effort_timestamp (_frame); if (bet != AV_NOPTS_VALUE) { - t = bet * av_q2d (_format_context->streams[stream]->time_base); + t = ContentTime::from_seconds (bet * av_q2d (s->time_base)); } return t; } -float +optional FFmpegExaminer::video_frame_rate () const { - AVStream* s = _format_context->streams[_video_stream]; - - if (s->avg_frame_rate.num && s->avg_frame_rate.den) { - return av_q2d (s->avg_frame_rate); - } - - return av_q2d (s->r_frame_rate); + DCPOMATIC_ASSERT (_video_stream); + return av_q2d(av_guess_frame_rate(_format_context, _format_context->streams[_video_stream.get()], 0)); } -libdcp::Size +dcp::Size FFmpegExaminer::video_size () const { - return libdcp::Size (video_codec_context()->width, video_codec_context()->height); + return dcp::Size (video_codec_context()->width, video_codec_context()->height); } -/** @return Length (in video frames) according to our content's header */ -VideoContent::Frame +/** @return Length according to our content's header */ +Frame FFmpegExaminer::video_length () const { - VideoContent::Frame const length = (double (_format_context->duration) / AV_TIME_BASE) * video_frame_rate(); - return max (1, length); + return max (Frame (1), _video_length); +} + +optional +FFmpegExaminer::sample_aspect_ratio () const +{ + DCPOMATIC_ASSERT (_video_stream); + AVRational sar = av_guess_sample_aspect_ratio (_format_context, _format_context->streams[_video_stream.get()], 0); + if (sar.num == 0) { + /* I assume this means that we don't know */ + return optional (); + } + return double (sar.num) / sar.den; +} + +string +FFmpegExaminer::subtitle_stream_name (AVStream* s) const +{ + string n = stream_name (s); + + if (n.empty()) { + n = _("unknown"); + } + + return n; } string FFmpegExaminer::stream_name (AVStream* s) const { - stringstream n; + string n; if (s->metadata) { AVDictionaryEntry const * lang = av_dict_get (s->metadata, "language", 0, 0); if (lang) { - n << lang->value; + n = lang->value; } - + AVDictionaryEntry const * title = av_dict_get (s->metadata, "title", 0, 0); if (title) { - if (!n.str().empty()) { - n << " "; + if (!n.empty()) { + n += " "; } - n << title->value; + n += title->value; } } - if (!n.str().empty()) { - n << "; "; + return n; +} + +optional +FFmpegExaminer::bits_per_pixel () const +{ + if (video_codec_context()->pix_fmt == -1) { + return optional(); + } + + AVPixFmtDescriptor const * d = av_pix_fmt_desc_get (video_codec_context()->pix_fmt); + DCPOMATIC_ASSERT (d); + return av_get_bits_per_pixel (d); +} + +bool +FFmpegExaminer::yuv () const +{ + switch (video_codec_context()->pix_fmt) { + case AV_PIX_FMT_YUV420P: + case AV_PIX_FMT_YUYV422: + case AV_PIX_FMT_YUV422P: + case AV_PIX_FMT_YUV444P: + case AV_PIX_FMT_YUV410P: + case AV_PIX_FMT_YUV411P: + case AV_PIX_FMT_YUVJ420P: + case AV_PIX_FMT_YUVJ422P: + case AV_PIX_FMT_YUVJ444P: + case AV_PIX_FMT_UYVY422: + case AV_PIX_FMT_UYYVYY411: + case AV_PIX_FMT_NV12: + case AV_PIX_FMT_NV21: + case AV_PIX_FMT_YUV440P: + case AV_PIX_FMT_YUVJ440P: + case AV_PIX_FMT_YUVA420P: + case AV_PIX_FMT_YUV420P16LE: + case AV_PIX_FMT_YUV420P16BE: + case AV_PIX_FMT_YUV422P16LE: + case AV_PIX_FMT_YUV422P16BE: + case AV_PIX_FMT_YUV444P16LE: + case AV_PIX_FMT_YUV444P16BE: + case AV_PIX_FMT_YUV420P9BE: + case AV_PIX_FMT_YUV420P9LE: + case AV_PIX_FMT_YUV420P10BE: + case AV_PIX_FMT_YUV420P10LE: + case AV_PIX_FMT_YUV422P10BE: + case AV_PIX_FMT_YUV422P10LE: + case AV_PIX_FMT_YUV444P9BE: + case AV_PIX_FMT_YUV444P9LE: + case AV_PIX_FMT_YUV444P10BE: + case AV_PIX_FMT_YUV444P10LE: + case AV_PIX_FMT_YUV422P9BE: + case AV_PIX_FMT_YUV422P9LE: + case AV_PIX_FMT_YUVA420P9BE: + case AV_PIX_FMT_YUVA420P9LE: + case AV_PIX_FMT_YUVA422P9BE: + case AV_PIX_FMT_YUVA422P9LE: + case AV_PIX_FMT_YUVA444P9BE: + case AV_PIX_FMT_YUVA444P9LE: + case AV_PIX_FMT_YUVA420P10BE: + case AV_PIX_FMT_YUVA420P10LE: + case AV_PIX_FMT_YUVA422P10BE: + case AV_PIX_FMT_YUVA422P10LE: + case AV_PIX_FMT_YUVA444P10BE: + case AV_PIX_FMT_YUVA444P10LE: + case AV_PIX_FMT_YUVA420P16BE: + case AV_PIX_FMT_YUVA420P16LE: + case AV_PIX_FMT_YUVA422P16BE: + case AV_PIX_FMT_YUVA422P16LE: + case AV_PIX_FMT_YUVA444P16BE: + case AV_PIX_FMT_YUVA444P16LE: + case AV_PIX_FMT_NV16: + case AV_PIX_FMT_NV20LE: + case AV_PIX_FMT_NV20BE: + case AV_PIX_FMT_YVYU422: + case AV_PIX_FMT_YUVA444P: + case AV_PIX_FMT_YUVA422P: + case AV_PIX_FMT_YUV420P12BE: + case AV_PIX_FMT_YUV420P12LE: + case AV_PIX_FMT_YUV420P14BE: + case AV_PIX_FMT_YUV420P14LE: + case AV_PIX_FMT_YUV422P12BE: + case AV_PIX_FMT_YUV422P12LE: + case AV_PIX_FMT_YUV422P14BE: + case AV_PIX_FMT_YUV422P14LE: + case AV_PIX_FMT_YUV444P12BE: + case AV_PIX_FMT_YUV444P12LE: + case AV_PIX_FMT_YUV444P14BE: + case AV_PIX_FMT_YUV444P14LE: + case AV_PIX_FMT_YUVJ411P: + return true; + default: + return false; } +} - n << s->codec->channels << " channels"; +bool +FFmpegExaminer::has_video () const +{ + return static_cast (_video_stream); +} - return n.str (); +VideoRange +FFmpegExaminer::range () const +{ + switch (color_range()) { + case AVCOL_RANGE_MPEG: + case AVCOL_RANGE_UNSPECIFIED: + return VIDEO_RANGE_VIDEO; + case AVCOL_RANGE_JPEG: + default: + return VIDEO_RANGE_FULL; + } }