/*
- Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
#include "dcpomatic_log.h"
#include "ffmpeg_examiner.h"
#include "ffmpeg_content.h"
#include "ffmpeg_audio_stream.h"
#include "ffmpeg_subtitle_stream.h"
#include "util.h"
-#include "warnings.h"
-DCPOMATIC_DISABLE_WARNINGS
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/pixfmt.h>
#include <libavutil/pixdesc.h>
-#include <libavutil/eval.h>
+#include <libavutil/channel_layout.h>
#include <libavutil/display.h>
+#include <libavutil/eval.h>
}
-DCPOMATIC_ENABLE_WARNINGS
-#include <boost/foreach.hpp>
+LIBDCP_ENABLE_WARNINGS
#include <iostream>
#include "i18n.h"
-using std::string;
+
using std::cout;
+using std::make_shared;
using std::max;
+using std::shared_ptr;
+using std::string;
using std::vector;
-using boost::shared_ptr;
using boost::optional;
using namespace dcpomatic;
/* Find audio and subtitle streams */
for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
- AVStream* s = _format_context->streams[i];
-DCPOMATIC_DISABLE_WARNINGS
- if (s->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
+ auto s = _format_context->streams[i];
+ auto codec = _codec_context[i] ? _codec_context[i]->codec : nullptr;
+ if (s->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && codec) {
/* This is a hack; sometimes it seems that _audio_codec_context->channel_layout isn't set up,
so bodge it here. No idea why we should have to do this.
*/
- if (s->codec->channel_layout == 0) {
- s->codec->channel_layout = av_get_default_channel_layout (s->codec->channels);
+ if (s->codecpar->channel_layout == 0) {
+ s->codecpar->channel_layout = av_get_default_channel_layout (s->codecpar->channels);
}
DCPOMATIC_ASSERT (_format_context->duration != AV_NOPTS_VALUE);
- DCPOMATIC_ASSERT (s->codec->codec);
- DCPOMATIC_ASSERT (s->codec->codec->name);
+ DCPOMATIC_ASSERT (codec->name);
_audio_streams.push_back (
- shared_ptr<FFmpegAudioStream> (
- 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
- )
+ make_shared<FFmpegAudioStream>(
+ stream_name (s),
+ codec->name,
+ s->id,
+ s->codecpar->sample_rate,
+ llrint ((double(_format_context->duration) / AV_TIME_BASE) * s->codecpar->sample_rate),
+ s->codecpar->channels,
+ s->codecpar->bits_per_raw_sample ? s->codecpar->bits_per_raw_sample : s->codecpar->bits_per_coded_sample
)
);
- } else if (s->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (subtitle_stream_name (s), s->id)));
+ } else if (s->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
+ _subtitle_streams.push_back (make_shared<FFmpegSubtitleStream>(subtitle_stream_name (s), s->id));
}
}
*/
string temporal_reference;
while (true) {
- int r = av_read_frame (_format_context, &_packet);
+ auto packet = av_packet_alloc ();
+ DCPOMATIC_ASSERT (packet);
+ int r = av_read_frame (_format_context, packet);
if (r < 0) {
+ av_packet_free (&packet);
break;
}
}
}
- AVCodecContext* context = _format_context->streams[_packet.stream_index]->codec;
-DCPOMATIC_ENABLE_WARNINGS
+ auto context = _codec_context[packet->stream_index];
- if (_video_stream && _packet.stream_index == _video_stream.get()) {
- video_packet (context, temporal_reference);
+ if (_video_stream && packet->stream_index == _video_stream.get()) {
+ video_packet (context, temporal_reference, packet);
}
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]->uses_index(_format_context, packet->stream_index)) {
+ audio_packet (context, _audio_streams[i], packet);
}
if (!_audio_streams[i]->first_audio) {
got_all_audio = false;
}
}
- av_packet_unref (&_packet);
+ av_packet_free (&packet);
- if (_first_video && got_all_audio && temporal_reference.size() >= PULLDOWN_CHECK_FRAMES) {
+ if (_first_video && got_all_audio && temporal_reference.size() >= (PULLDOWN_CHECK_FRAMES * 2)) {
/* All done */
break;
}
}
+ if (_video_stream) {
+ auto context = _codec_context[_video_stream.get()];
+ while (video_packet(context, temporal_reference, nullptr)) {}
+ }
+
+ for (auto i: _audio_streams) {
+ auto context = _codec_context[i->index(_format_context)];
+ audio_packet(context, i, nullptr);
+ }
+
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);
+ auto stream = _format_context->streams[*_video_stream];
+ auto 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_display_rotation_get ((int32_t*) displaymatrix);
}
- _rotation = *_rotation - 360 * floor (*_rotation / 360 + 0.9 / 360);
-
- DCPOMATIC_ASSERT (fabs (*_rotation - 90 * round (*_rotation / 90)) < 2);
+ if (_rotation) {
+ _rotation = *_rotation - 360 * floor (*_rotation / 360 + 0.9 / 360);
+ }
}
LOG_GENERAL("Temporal reference was %1", temporal_reference);
- if (temporal_reference.find("T2T3B2B3T2T3B2B3") || temporal_reference.find("B2B3T2T3B2B3T2T3")) {
+ if (temporal_reference.find("T2T3B2B3T2T3B2B3") != string::npos || temporal_reference.find("B2B3T2T3B2B3T2T3") != string::npos) {
/* The magical sequence (taken from mediainfo) suggests that 2:3 pull-down is in use */
_pulldown = true;
LOG_GENERAL_NC("Suggest that this may be 2:3 pull-down (soft telecine)");
}
-
-#ifdef DCPOMATIC_VARIANT_SWAROOP
- AVDictionaryEntry* e = av_dict_get (_format_context->metadata, SWAROOP_ID_TAG, 0, 0);
- if (e) {
- _id = e->value;
- }
-#endif
}
/** @param temporal_reference A string to which we should add two characters per frame;
* the first is T or B depending on whether it's top- or bottom-field first,
- * ths seconds is 3 or 2 depending on whether "repeat_pict" is true or not.
+ * the second is 3 or 2 depending on whether "repeat_pict" is true or not.
+ * @return true if some video was decoded, otherwise false.
*/
-void
-FFmpegExaminer::video_packet (AVCodecContext* context, string& temporal_reference)
+bool
+FFmpegExaminer::video_packet (AVCodecContext* context, string& temporal_reference, AVPacket* packet)
{
DCPOMATIC_ASSERT (_video_stream);
- if (_first_video && !_need_video_length && temporal_reference.size() >= PULLDOWN_CHECK_FRAMES) {
- return;
+ if (_first_video && !_need_video_length && temporal_reference.size() >= (PULLDOWN_CHECK_FRAMES * 2)) {
+ return false;
}
- int frame_finished;
-DCPOMATIC_DISABLE_WARNINGS
- if (avcodec_decode_video2 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) {
-DCPOMATIC_ENABLE_WARNINGS
- 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 ());
+ bool pending = false;
+ do {
+ int r = avcodec_send_packet (context, packet);
+ if (r < 0) {
+ LOG_WARNING("avcodec_send_packet returned %1 for a video packet", r);
}
- if (temporal_reference.size() < PULLDOWN_CHECK_FRAMES) {
- temporal_reference += (_frame->top_field_first ? "T" : "B");
- temporal_reference += (_frame->repeat_pict ? "3" : "2");
+
+ /* EAGAIN means we should call avcodec_receive_frame and then re-send the same packet */
+ pending = r == AVERROR(EAGAIN);
+
+ r = avcodec_receive_frame (context, _video_frame);
+ if (r == AVERROR(EAGAIN)) {
+ /* More input is required */
+ return true;
+ } else if (r == AVERROR_EOF) {
+ /* No more output is coming */
+ return false;
}
+ } while (pending);
+
+ if (!_first_video) {
+ _first_video = frame_time (_video_frame, _format_context->streams[_video_stream.get()]);
+ }
+ if (_need_video_length) {
+ _video_length = frame_time (
+ _video_frame,
+ _format_context->streams[_video_stream.get()]
+ ).get_value_or (ContentTime ()).frames_round (video_frame_rate().get ());
}
+ if (temporal_reference.size() < (PULLDOWN_CHECK_FRAMES * 2)) {
+ temporal_reference += (_video_frame->top_field_first ? "T" : "B");
+ temporal_reference += (_video_frame->repeat_pict ? "3" : "2");
+ }
+
+ return true;
}
void
-FFmpegExaminer::audio_packet (AVCodecContext* context, shared_ptr<FFmpegAudioStream> stream)
+FFmpegExaminer::audio_packet (AVCodecContext* context, shared_ptr<FFmpegAudioStream> stream, AVPacket* packet)
{
if (stream->first_audio) {
return;
}
- int frame_finished;
-DCPOMATIC_DISABLE_WARNINGS
- if (avcodec_decode_audio4 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) {
-DCPOMATIC_ENABLE_WARNINGS
- stream->first_audio = frame_time (stream->stream (_format_context));
+ int r = avcodec_send_packet (context, packet);
+ if (r < 0) {
+ LOG_WARNING("avcodec_send_packet returned %1 for an audio packet", r);
+ return;
+ }
+
+ auto frame = audio_frame (stream);
+
+ if (avcodec_receive_frame (context, frame) < 0) {
+ return;
}
+
+ stream->first_audio = frame_time (frame, stream->stream(_format_context));
}
optional<ContentTime>
-FFmpegExaminer::frame_time (AVStream* s) const
+FFmpegExaminer::frame_time (AVFrame* frame, AVStream* stream) const
{
optional<ContentTime> t;
-DCPOMATIC_DISABLE_WARNINGS
- int64_t const bet = av_frame_get_best_effort_timestamp (_frame);
-DCPOMATIC_ENABLE_WARNINGS
+ int64_t const bet = frame->best_effort_timestamp;
if (bet != AV_NOPTS_VALUE) {
- t = ContentTime::from_seconds (bet * av_q2d (s->time_base));
+ t = ContentTime::from_seconds (bet * av_q2d(stream->time_base));
}
return t;
return av_q2d(av_guess_frame_rate(_format_context, _format_context->streams[_video_stream.get()], 0));
}
-dcp::Size
+
+optional<dcp::Size>
FFmpegExaminer::video_size () const
{
return dcp::Size (video_codec_context()->width, video_codec_context()->height);
}
+
/** @return Length according to our content's header */
Frame
FFmpegExaminer::video_length () const
return max (Frame (1), _video_length);
}
+
optional<double>
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);
+ auto 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<double> ();
+ return {};
}
return double (sar.num) / sar.den;
}
+
string
FFmpegExaminer::subtitle_stream_name (AVStream* s) const
{
- string n = stream_name (s);
+ auto n = stream_name (s);
if (n.empty()) {
n = _("unknown");
return n;
}
+
string
FFmpegExaminer::stream_name (AVStream* s) const
{
string n;
if (s->metadata) {
- AVDictionaryEntry const * lang = av_dict_get (s->metadata, "language", 0, 0);
+ auto const lang = av_dict_get (s->metadata, "language", 0, 0);
if (lang) {
n = lang->value;
}
- AVDictionaryEntry const * title = av_dict_get (s->metadata, "title", 0, 0);
+ auto const title = av_dict_get (s->metadata, "title", 0, 0);
if (title) {
if (!n.empty()) {
n += " ";
return n;
}
+
optional<int>
FFmpegExaminer::bits_per_pixel () const
{
if (video_codec_context()->pix_fmt == -1) {
- return optional<int>();
+ return {};
}
- AVPixFmtDescriptor const * d = av_pix_fmt_desc_get (video_codec_context()->pix_fmt);
+ auto const d = av_pix_fmt_desc_get (video_codec_context()->pix_fmt);
DCPOMATIC_ASSERT (d);
return av_get_bits_per_pixel (d);
}
+
+bool
+FFmpegExaminer::has_alpha() const
+{
+ if (video_codec_context()->pix_fmt == -1) {
+ return false;
+ }
+
+ auto const d = av_pix_fmt_desc_get(video_codec_context()->pix_fmt);
+ DCPOMATIC_ASSERT(d);
+ return d->flags & AV_PIX_FMT_FLAG_ALPHA;
+}
+
+
bool
FFmpegExaminer::yuv () const
{
}
}
+
bool
FFmpegExaminer::has_video () const
{
- return static_cast<bool> (_video_stream);
+ return static_cast<bool>(_video_stream);
}
+
VideoRange
FFmpegExaminer::range () const
{
switch (color_range()) {
case AVCOL_RANGE_MPEG:
case AVCOL_RANGE_UNSPECIFIED:
- return VIDEO_RANGE_VIDEO;
+ return VideoRange::VIDEO;
case AVCOL_RANGE_JPEG:
default:
- return VIDEO_RANGE_FULL;
+ return VideoRange::FULL;
}
}
+
+
+PixelQuanta
+FFmpegExaminer::pixel_quanta () const
+{
+ auto const desc = av_pix_fmt_desc_get(video_codec_context()->pix_fmt);
+ DCPOMATIC_ASSERT (desc);
+ return { 1 << desc->log2_chroma_w, 1 << desc->log2_chroma_h };
+}
+
projects / dcpomatic.git / blobdiff