X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fffmpeg_examiner.cc;h=18a87f40e591ab0e27d66b88d2677ea75043bae4;hp=5ca05dd55e780080b421b24c44a49cc694604e5f;hb=a8a0dfd1b21de6c0facf965ab119833ff6f790bf;hpb=475d5986b7ba3796eb0aa93ec0b536f45e15b0a5 diff --git a/src/lib/ffmpeg_examiner.cc b/src/lib/ffmpeg_examiner.cc index 5ca05dd55..18a87f40e 100644 --- a/src/lib/ffmpeg_examiner.cc +++ b/src/lib/ffmpeg_examiner.cc @@ -1,32 +1,38 @@ /* - Copyright (C) 2013-2014 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 "ffmpeg_examiner.h" #include "ffmpeg_content.h" +#include "job.h" #include "ffmpeg_audio_stream.h" #include "ffmpeg_subtitle_stream.h" #include "util.h" #include "safe_stringstream.h" +#include +#include #include "i18n.h" @@ -36,8 +42,11 @@ using std::max; using boost::shared_ptr; using boost::optional; -FFmpegExaminer::FFmpegExaminer (shared_ptr c) +/** @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 */ @@ -52,10 +61,21 @@ 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 (audio_stream_name (s), s->id, s->codec->sample_rate, s->codec->channels) + new FFmpegAudioStream ( + stream_name (s), + s->codec->codec->name, + s->id, + s->codec->sample_rate, + (double (_format_context->duration) / AV_TIME_BASE) * s->codec->sample_rate, + s->codec->channels + ) ) ); @@ -64,6 +84,24 @@ FFmpegExaminer::FFmpegExaminer (shared_ptr c) } } + 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 = (double (_format_context->duration) / AV_TIME_BASE) * video_frame_rate().get (); + } + } + + if (job) { + if (_need_video_length) { + job->sub (_("Finding length and subtitles")); + } else if (!_subtitle_streams.empty()) { + job->sub (_("Finding subtitles")); + } else { + job->sub (_("Finding length")); + } + } + /* Run through until we find: * - the first video. * - the first audio for each stream. @@ -73,22 +111,37 @@ FFmpegExaminer::FFmpegExaminer (shared_ptr c) * where we should look for subtitles (video and audio are always present, * so they are ok). */ + + int64_t const len = _file_group.length (); while (true) { int r = av_read_frame (_format_context, &_packet); if (r < 0) { break; } + 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) { + 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]); } + if (!_audio_streams[i]->first_audio) { + got_all_audio = false; + } } for (size_t i = 0; i < _subtitle_streams.size(); ++i) { @@ -97,20 +150,67 @@ FFmpegExaminer::FFmpegExaminer (shared_ptr c) } } - av_free_packet (&_packet); + av_packet_unref (&_packet); + + if (_first_video && got_all_audio && _subtitle_streams.empty ()) { + /* All done */ + break; + } + } + + /* Finish off any hanging subtitles at the end */ + for (LastSubtitleMap::const_iterator i = _last_subtitle_start.begin(); i != _last_subtitle_start.end(); ++i) { + if (i->second) { + if (i->second->image) { + i->first->add_image_subtitle ( + i->second->id, + ContentTimePeriod ( + i->second->time, + ContentTime::from_frames (video_length(), video_frame_rate().get_value_or (24)) + ) + ); + } else { + i->first->add_text_subtitle ( + i->second->id, + ContentTimePeriod ( + i->second->time, + ContentTime::from_frames (video_length(), video_frame_rate().get_value_or (24)) + ) + ); + } + } + } + + /* We just added subtitles to our streams without taking the PTS offset into account; + this is because we might not know the PTS offset when the first subtitle is seen. + Now we know the PTS offset so we can apply it to those subtitles. + */ + if (has_video() && video_frame_rate()) { + BOOST_FOREACH (shared_ptr i, _subtitle_streams) { + i->add_offset (pts_offset (_audio_streams, _first_video, video_frame_rate().get())); + } } } void FFmpegExaminer::video_packet (AVCodecContext* context) { - if (_first_video) { + 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) { - _first_video = frame_time (_format_context->streams[_video_stream]); + 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 ()); + } } } @@ -133,13 +233,69 @@ FFmpegExaminer::subtitle_packet (AVCodecContext* context, shared_ptr= 0 && frame_finished) { - ContentTimePeriod const period = subtitle_period (sub); - if (sub.num_rects == 0 && !stream->periods.empty () && stream->periods.back().to > period.from) { - /* Finish the last subtitle */ - stream->periods.back().to = period.from; + string id = subtitle_id (sub); + FFmpegSubtitlePeriod const period = subtitle_period (sub); + bool const starts_image = subtitle_starts_image (sub); + + LastSubtitleMap::iterator last = _last_subtitle_start.find (stream); + if (last != _last_subtitle_start.end() && last->second) { + /* We have seen the start of a subtitle but not yet the end. Whatever this is + finishes the previous subtitle, so add it */ + if (last->second->image) { + stream->add_image_subtitle (last->second->id, ContentTimePeriod (last->second->time, period.from)); + } else { + stream->add_text_subtitle (last->second->id, ContentTimePeriod (last->second->time, period.from)); + } + if (sub.num_rects == 0) { + /* This is a `proper' end-of-subtitle */ + _last_subtitle_start[stream] = optional (); + } else { + /* This is just another subtitle, so we start again */ + _last_subtitle_start[stream] = SubtitleStart (id, starts_image, period.from); + } } else if (sub.num_rects == 1) { - stream->periods.push_back (period); + if (period.to) { + if (starts_image) { + stream->add_image_subtitle (id, ContentTimePeriod (period.from, period.to.get ())); + } else { + stream->add_text_subtitle (id, ContentTimePeriod (period.from, period.to.get ())); + } + } else { + _last_subtitle_start[stream] = SubtitleStart (id, starts_image, period.from); + } + } + + for (unsigned int i = 0; i < sub.num_rects; ++i) { + if (sub.rects[i]->type == SUBTITLE_BITMAP) { +#ifdef DCPOMATIC_HAVE_AVSUBTITLERECT_PICT + uint32_t* palette = (uint32_t *) sub.rects[i]->pict.data[1]; + for (int j = 0; j < sub.rects[i]->nb_colors; ++j) { + RGBA rgba ( + (palette[j] & 0x00ff0000) >> 16, + (palette[j] & 0x0000ff00) >> 8, + (palette[j] & 0x000000ff) >> 0, + (palette[j] & 0xff000000) >> 24 + ); + + stream->set_colour (rgba, rgba); + } +#else + uint32_t* palette = (uint32_t *) sub.rects[i]->data[1]; + for (int j = 0; j < sub.rects[i]->nb_colors; ++j) { + RGBA rgba ( + (palette[j] & 0x00ff0000) >> 16, + (palette[j] & 0x0000ff00) >> 8, + (palette[j] & 0x000000ff) >> 0, + (palette[j] & 0xff000000) >> 24 + ); + + stream->set_colour (rgba, rgba); + } +#endif + } } + + avsubtitle_free (&sub); } } @@ -147,7 +303,7 @@ 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 = ContentTime::from_seconds (bet * av_q2d (s->time_base)); @@ -156,14 +312,15 @@ FFmpegExaminer::frame_time (AVStream* s) const return t; } -float +optional FFmpegExaminer::video_frame_rate () const { + DCPOMATIC_ASSERT (_video_stream); /* This use of r_frame_rate is debateable; there's a few different * frame rates in the format context, but this one seems to be the most * reliable. */ - return av_q2d (av_stream_get_r_frame_rate (_format_context->streams[_video_stream])); + return av_q2d (av_stream_get_r_frame_rate (_format_context->streams[_video_stream.get()])); } dcp::Size @@ -173,38 +330,22 @@ FFmpegExaminer::video_size () const } /** @return Length according to our content's header */ -ContentTime +Frame FFmpegExaminer::video_length () const { - ContentTime const length = ContentTime::from_seconds (double (_format_context->duration) / AV_TIME_BASE); - return ContentTime (max (ContentTime::Type (1), length.get ())); + return max (Frame (1), _video_length); } -optional +optional FFmpegExaminer::sample_aspect_ratio () const { - AVRational sar = av_guess_sample_aspect_ratio (_format_context, _format_context->streams[_video_stream], 0); + 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 optional (); } - return float (sar.num) / sar.den; -} - -string -FFmpegExaminer::audio_stream_name (AVStream* s) const -{ - SafeStringStream n; - - n << stream_name (s); - - if (!n.str().empty()) { - n << "; "; - } - - n << s->codec->channels << " channels"; - - return n.str (); + return double (sar.num) / sar.den; } string @@ -231,7 +372,7 @@ FFmpegExaminer::stream_name (AVStream* s) const if (lang) { n << lang->value; } - + AVDictionaryEntry const * title = av_dict_get (s->metadata, "title", 0, 0); if (title) { if (!n.str().empty()) { @@ -243,3 +384,102 @@ FFmpegExaminer::stream_name (AVStream* s) const return n.str (); } + +int +FFmpegExaminer::bits_per_pixel () const +{ + if (video_codec_context()->pix_fmt == -1) { + throw DecodeError (_("Could not find pixel format for video.")); + } + + 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; + } +} + +bool +FFmpegExaminer::has_video () const +{ + return static_cast (_video_stream); +}