extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
+#include <libavutil/pixfmt.h>
+#include <libavutil/pixdesc.h>
}
#include "ffmpeg_examiner.h"
#include "ffmpeg_content.h"
#include "ffmpeg_subtitle_stream.h"
#include "util.h"
#include "safe_stringstream.h"
+#include <boost/foreach.hpp>
+#include <iostream>
#include "i18n.h"
_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 ();
- } else if (job) {
- job->sub (_("Finding length"));
- job->set_progress_unknown ();
}
if (job) {
- job->sub (_("Finding subtitles"));
+ if (_need_video_length) {
+ job->sub (_("Finding length and subtitles"));
+ } else {
+ job->sub (_("Finding subtitles"));
+ }
}
/* Run through until we find:
* 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) {
}
if (job) {
- job->set_progress_unknown ();
+ 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;
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) {
}
}
- 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 (video_frame_rate()) {
+ BOOST_FOREACH (shared_ptr<FFmpegSubtitleStream> i, _subtitle_streams) {
+ i->add_offset (pts_offset (_audio_streams, _first_video, video_frame_rate().get()));
+ }
}
}
if (_need_video_length) {
_video_length = frame_time (
_format_context->streams[_video_stream]
- ).get_value_or (ContentTime ()).frames (video_frame_rate().get ());
+ ).get_value_or (ContentTime ()).frames_round (video_frame_rate().get ());
}
}
}
int frame_finished;
AVSubtitle sub;
if (avcodec_decode_subtitle2 (context, &sub, &frame_finished, &_packet) >= 0 && frame_finished) {
+ string id = subtitle_id (sub);
FFmpegSubtitlePeriod const period = subtitle_period (sub);
- if (sub.num_rects <= 0 && _last_subtitle_start) {
- stream->add_subtitle (ContentTimePeriod (_last_subtitle_start.get (), period.from));
- _last_subtitle_start = optional<ContentTime> ();
+ 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<SubtitleStart> ();
+ } 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) {
if (period.to) {
- stream->add_subtitle (ContentTimePeriod (period.from, period.to.get ()));
+ 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 = period.from;
+ _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) {
+ 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);
+ }
+ }
+ }
+
avsubtitle_free (&sub);
}
}
return t;
}
-optional<float>
+optional<double>
FFmpegExaminer::video_frame_rate () const
{
/* This use of r_frame_rate is debateable; there's a few different
return max (Frame (1), _video_length);
}
-optional<float>
+optional<double>
FFmpegExaminer::sample_aspect_ratio () const
{
AVRational sar = av_guess_sample_aspect_ratio (_format_context, _format_context->streams[_video_stream], 0);
if (sar.num == 0) {
/* I assume this means that we don't know */
- return optional<float> ();
+ return optional<double> ();
}
- return float (sar.num) / sar.den;
+ return double (sar.num) / sar.den;
}
string
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;
+ }
+}
projects / dcpomatic.git / blobdiff