avformatdecoder.cpp File Reference

#include "avformatdecoder.h"
#include <unistd.h>
#include <algorithm>
#include <array>
#include <cmath>
#include <cstdint>
#include <iostream>
#include <set>
#include "libavutil/avutil.h"
#include "libavutil/error.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavformat/avio.h"
#include "libswscale/swscale.h"
#include "libavutil/stereo3d.h"
#include "libavutil/imgutils.h"
#include "libavutil/display.h"
#include <QFileInfo>
#include <QStringDecoder>
#include "libmyth/audio/audiooutput.h"
#include "libmyth/audio/audiooutpututil.h"
#include "libmythbase/iso639.h"
#include "libmythbase/lcddevice.h"
#include "libmythbase/mythchrono.h"
#include "libmythbase/mythconfig.h"
#include "libmythbase/mythcorecontext.h"
#include "libmythbase/mythdate.h"
#include "libmythbase/mythdbcon.h"
#include "libmythbase/stringutil.h"
#include "libmythui/mythuihelper.h"
#include "mythtvexp.h"
#include "Bluray/mythbdbuffer.h"
#include "DVD/mythdvdbuffer.h"
#include "captions/cc608decoder.h"
#include "captions/cc708decoder.h"
#include "captions/subtitlereader.h"
#include "captions/teletextdecoder.h"
#include "io/mythmediabuffer.h"
#include "mheg/interactivetv.h"
#include "mpeg/atscdescriptors.h"
#include "mpeg/dvbdescriptors.h"
#include "mpeg/mpegtables.h"
#include "bytereader.h"
#include "mythavutil.h"
#include "mythframe.h"
#include "mythhdrvideometadata.h"
#include "mythvideoprofile.h"
#include "remoteencoder.h"

Include dependency graph for avformatdecoder.cpp:

Go to the source code of this file.

Macros
#define	LOC   QString("AFD: ")
#define	FAIL(errmsg)

Enumerations
enum	V4L2_MPEG_LINE_TYPES { V4L2_MPEG_VBI_IVTV_TELETEXT_B = 1, V4L2_MPEG_VBI_IVTV_CAPTION_525 = 4, V4L2_MPEG_VBI_IVTV_WSS_625 = 5, V4L2_MPEG_VBI_IVTV_VPS = 7 }

Functions
static QSize	get_video_dim (const AVCodecContext &ctx)
static float	get_aspect (const AVCodecContext &ctx)
static float	get_aspect (AVCParser &p)
int	get_avf_buffer (struct AVCodecContext *c, AVFrame *pic, int flags)
int	get_avf_buffer_dxva2 (struct AVCodecContext *c, AVFrame *pic, int flags)
static bool	StreamHasRequiredParameters (AVCodecContext *Context, AVStream *Stream)
	Determine if we have enough live TV data to initialize hardware decoders. More...
static void	myth_av_log (void *ptr, int level, const char *fmt, va_list vl)
static int	get_canonical_lang (const char *lang_cstr)
static const char *	AVMediaTypeToString (enum AVMediaType codec_type)
	returns a human readable string for the AVMediaType enum. More...
static int64_t	lsb3full (int64_t lsb, int64_t base_ts, int lsb_bits)
void	HandleStreamChange (void *data)
static enum AVPixelFormat	get_format_dxva2 (struct AVCodecContext *, const enum AVPixelFormat *)
static bool	cc608_good_parity (uint16_t data)
static std::vector< int >	filter_lang (const sinfo_vec_t &tracks, int lang_key, const std::vector< int > &ftype)
static std::vector< int >	filter_type (const sinfo_vec_t &tracks, AudioTrackType type)
static void	extract_mono_channel (uint channel, AudioInfo *audioInfo, char *buffer, int bufsize)

Variables
static constexpr int	SEQ_PKT_ERR_MAX { 50 }
static constexpr ssize_t	kMaxVideoQueueSize = 220
static bool	silence_ffmpeg_logging = false
static constexpr uint32_t	SEQ_START { 0x000001b3 }
static constexpr uint32_t	GOP_START { 0x000001b8 }
static constexpr uint32_t	SLICE_MIN { 0x00000101 }
static constexpr uint32_t	SLICE_MAX { 0x000001af }

Macro Definition Documentation

LOC

#define LOC   QString("AFD: ")

Definition at line 121 of file avformatdecoder.cpp.

FAIL

#define FAIL

(

errmsg

)

Value:

    do {                       \
    LOG(VB_PLAYBACK, LOG_INFO, LOC + (errmsg)); \
    return false;                                   \
} while (false)

Definition at line 211 of file avformatdecoder.cpp.

Enumeration Type Documentation

V4L2_MPEG_LINE_TYPES

enum V4L2_MPEG_LINE_TYPES

Enumerator
V4L2_MPEG_VBI_IVTV_TELETEXT_B	Teletext (uses lines 6-22 for PAL, 10-21 for NTSC)
V4L2_MPEG_VBI_IVTV_CAPTION_525	Closed Captions (line 21 NTSC, line 22 PAL)
V4L2_MPEG_VBI_IVTV_WSS_625	Wide Screen Signal (line 20 NTSC, line 23 PAL)
V4L2_MPEG_VBI_IVTV_VPS	Video Programming System (PAL) (line 16)

Definition at line 55 of file avformatdecoder.cpp.

Function Documentation

get_video_dim()

static QSize get_video_dim ( const AVCodecContext &  ctx )

static

Definition at line 139 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::InitVideoCodec(), AvFormatDecoder::ProcessVideoFrame(), and AvFormatDecoder::ScanStreams().

get_aspect() [1/2]

static float get_aspect ( const AVCodecContext &  ctx )

static

Definition at line 143 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::H264PreProcessPkt(), and AvFormatDecoder::InitVideoCodec().

get_aspect() [2/2]

static float get_aspect ( AVCParser &  p )

static

Definition at line 164 of file avformatdecoder.cpp.

get_avf_buffer()

int get_avf_buffer	(	struct AVCodecContext *	c,
		AVFrame *	pic,
		int	flags
	)

Definition at line 2702 of file avformatdecoder.cpp.

get_avf_buffer_dxva2()

int get_avf_buffer_dxva2	(	struct AVCodecContext *	c,
		AVFrame *	pic,
		int	flags
	)

Definition at line 2766 of file avformatdecoder.cpp.

StreamHasRequiredParameters()

static bool StreamHasRequiredParameters ( AVCodecContext *  Context, AVStream *  Stream  )

static

Determine if we have enough live TV data to initialize hardware decoders.

This was based on what is now the static int has_codec_parameters() from libavformat/demux.c

Definition at line 221 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::OpenFile().

myth_av_log()

static void myth_av_log ( void *  ptr, int  level, const char *  fmt, va_list  vl  )

static

Definition at line 277 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::AvFormatDecoder().

get_canonical_lang()

static int get_canonical_lang ( const char *  lang_cstr )

static

Definition at line 339 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::GetSubtitleLanguage(), and AvFormatDecoder::ScanRawTextCaptions().

AVMediaTypeToString()

static const char* AVMediaTypeToString ( enum AVMediaType  codec_type )

static

returns a human readable string for the AVMediaType enum.

av_get_media_type_string() from <libavutil/avutil.h> returns NULL for unknown or invalid codec_type, so use this instead.

Definition at line 361 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::GetFrame(), AvFormatDecoder::InitVideoCodec(), AvFormatDecoder::OpenAVCodec(), and AvFormatDecoder::ScanStreams().

lsb3full()

static int64_t lsb3full ( int64_t  lsb, int64_t  base_ts, int  lsb_bits  )

static

Definition at line 469 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::NormalizeVideoTimecode().

HandleStreamChange()

void HandleStreamChange

(

void *

data

)

Definition at line 889 of file avformatdecoder.cpp.

get_format_dxva2()

enum AVPixelFormat get_format_dxva2 ( struct AVCodecContext *  avctx, const enum AVPixelFormat *  valid_fmts  )

static

Definition at line 1376 of file avformatdecoder.cpp.

cc608_good_parity()

static bool cc608_good_parity ( uint16_t  data )

static

Definition at line 1589 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::DecodeCCx08(), and AvFormatDecoder::ProcessVBIDataPacket().

filter_lang()

static std::vector<int> filter_lang ( const sinfo_vec_t &  tracks, int  lang_key, const std::vector< int > &  ftype  )

static

Definition at line 4228 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::AutoSelectAudioTrack().

filter_type()

static std::vector<int> filter_type ( const sinfo_vec_t &  tracks, AudioTrackType  type  )

static

Definition at line 4242 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::AutoSelectAudioTrack().

extract_mono_channel()

static void extract_mono_channel ( uint  channel, AudioInfo *  audioInfo, char *  buffer, int  bufsize  )

static

Definition at line 4546 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::ProcessAudioPacket().

Variable Documentation

SEQ_PKT_ERR_MAX

constexpr int SEQ_PKT_ERR_MAX { 50 }

staticconstexpr

Definition at line 129 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::InitVideoCodec(), AvFormatDecoder::ProcessVideoPacket(), and AvFormatDecoder::ScanStreams().

kMaxVideoQueueSize

constexpr ssize_t kMaxVideoQueueSize = 220

staticconstexpr

Definition at line 134 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::GetFrame().

silence_ffmpeg_logging

bool silence_ffmpeg_logging = false

static

Definition at line 137 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::FindStreamInfo(), and myth_av_log().

SEQ_START

constexpr uint32_t SEQ_START { 0x000001b3 }

staticconstexpr

Definition at line 3067 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::MpegPreProcessPkt().

GOP_START

constexpr uint32_t GOP_START { 0x000001b8 }

staticconstexpr

Definition at line 3068 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::MpegPreProcessPkt().

SLICE_MIN

constexpr uint32_t SLICE_MIN { 0x00000101 }

staticconstexpr

Definition at line 3070 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::MpegPreProcessPkt().

SLICE_MAX

constexpr uint32_t SLICE_MAX { 0x000001af }

staticconstexpr

Definition at line 3071 of file avformatdecoder.cpp.

Referenced by AvFormatDecoder::MpegPreProcessPkt().