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OMXReader.cpp
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/*
* Copyright (C) 2005-2008 Team XBMC
* http://www.xbmc.org
*
* This Program 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, or (at your option)
* any later version.
*
* This Program 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 XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#if (defined HAVE_CONFIG_H) && (!defined WIN32)
#include "config.h"
#elif defined(_WIN32)
#include "system.h"
#endif
#include "OMXReader.h"
#include "OMXClock.h"
#include <stdio.h>
#include <unistd.h>
#include "linux/XMemUtils.h"
#define MAX_DATA_SIZE_VIDEO 8 * 1024 * 1024
#define MAX_DATA_SIZE_AUDIO 2 * 1024 * 1024
#define MAX_DATA_SIZE 10 * 1024 * 1024
static bool g_abort = false;
OMXReader::OMXReader()
{
m_open = false;
m_filename = "";
m_bMatroska = false;
m_bAVI = false;
g_abort = false;
m_pFile = NULL;
m_ioContext = NULL;
m_pFormatContext = NULL;
m_eof = false;
m_chapter_count = 0;
m_iCurrentPts = DVD_NOPTS_VALUE;
for(int i = 0; i < MAX_STREAMS; i++)
m_streams[i].extradata = NULL;
ClearStreams();
pthread_mutex_init(&m_lock, NULL);
}
OMXReader::~OMXReader()
{
Close();
pthread_mutex_destroy(&m_lock);
}
void OMXReader::Lock()
{
pthread_mutex_lock(&m_lock);
}
void OMXReader::UnLock()
{
pthread_mutex_unlock(&m_lock);
}
static int interrupt_cb(void *unused)
{
if(g_abort)
return 1;
return 0;
}
static int dvd_file_read(void *h, uint8_t* buf, int size)
{
if(interrupt_cb(NULL))
return -1;
XFILE::CFile *pFile = (XFILE::CFile *)h;
return pFile->Read(buf, size);
}
static offset_t dvd_file_seek(void *h, offset_t pos, int whence)
{
if(interrupt_cb(NULL))
return -1;
XFILE::CFile *pFile = (XFILE::CFile *)h;
if(whence == AVSEEK_SIZE)
return pFile->GetLength();
else
return pFile->Seek(pos, whence & ~AVSEEK_FORCE);
}
bool OMXReader::Open(std::string filename, bool dump_format, bool live /* =false */)
{
if (!m_dllAvUtil.Load() || !m_dllAvCodec.Load() || !m_dllAvFormat.Load())
return false;
m_iCurrentPts = DVD_NOPTS_VALUE;
m_filename = filename;
m_speed = DVD_PLAYSPEED_NORMAL;
m_program = UINT_MAX;
const AVIOInterruptCB int_cb = { interrupt_cb, NULL };
ClearStreams();
m_dllAvFormat.av_register_all();
m_dllAvFormat.avformat_network_init();
m_dllAvUtil.av_log_set_level(dump_format ? AV_LOG_INFO:AV_LOG_QUIET);
int result = -1;
AVInputFormat *iformat = NULL;
unsigned char *buffer = NULL;
unsigned int flags = READ_TRUNCATED | READ_BITRATE | READ_CHUNKED;
if(m_filename.substr(0, 8) == "shout://" )
m_filename.replace(0, 8, "http://");
if(m_filename.substr(0,6) == "mms://" || m_filename.substr(0,7) == "mmsh://" || m_filename.substr(0,7) == "mmst://" || m_filename.substr(0,7) == "mmsu://" ||
m_filename.substr(0,7) == "http://" ||
m_filename.substr(0,7) == "rtmp://" || m_filename.substr(0,6) == "udp://" ||
m_filename.substr(0,7) == "rtsp://" )
{
// ffmpeg dislikes the useragent from AirPlay urls
//int idx = m_filename.Find("|User-Agent=AppleCoreMedia");
size_t idx = m_filename.find("|");
if(idx != string::npos)
m_filename = m_filename.substr(0, idx);
AVDictionary *d = NULL;
// Enable seeking if http
if(m_filename.substr(0,7) == "http://")
{
av_dict_set(&d, "seekable", "1", 0);
}
CLog::Log(LOGDEBUG, "COMXPlayer::OpenFile - avformat_open_input %s ", m_filename.c_str());
result = m_dllAvFormat.avformat_open_input(&m_pFormatContext, m_filename.c_str(), iformat, &d);
if(av_dict_count(d) == 0)
{
CLog::Log(LOGDEBUG, "COMXPlayer::OpenFile - avformat_open_input enabled SEEKING ");
if(m_filename.substr(0,7) == "http://")
m_pFormatContext->pb->seekable = AVIO_SEEKABLE_NORMAL;
}
av_dict_free(&d);
if(result < 0)
{
CLog::Log(LOGERROR, "COMXPlayer::OpenFile - avformat_open_input %s ", m_filename.c_str());
Close();
return false;
}
}
else
{
m_pFile = new CFile();
if (!m_pFile->Open(m_filename, flags))
{
CLog::Log(LOGERROR, "COMXPlayer::OpenFile - %s ", m_filename.c_str());
Close();
return false;
}
buffer = (unsigned char*)m_dllAvUtil.av_malloc(FFMPEG_FILE_BUFFER_SIZE);
m_ioContext = m_dllAvFormat.avio_alloc_context(buffer, FFMPEG_FILE_BUFFER_SIZE, 0, m_pFile, dvd_file_read, NULL, dvd_file_seek);
m_ioContext->max_packet_size = 6144;
if(m_ioContext->max_packet_size)
m_ioContext->max_packet_size *= FFMPEG_FILE_BUFFER_SIZE / m_ioContext->max_packet_size;
if(m_pFile->IoControl(IOCTRL_SEEK_POSSIBLE, NULL) == 0)
m_ioContext->seekable = 0;
m_dllAvFormat.av_probe_input_buffer(m_ioContext, &iformat, m_filename.c_str(), NULL, 0, 0);
if(!iformat)
{
CLog::Log(LOGERROR, "COMXPlayer::OpenFile - av_probe_input_buffer %s ", m_filename.c_str());
Close();
return false;
}
m_pFormatContext = m_dllAvFormat.avformat_alloc_context();
m_pFormatContext->pb = m_ioContext;
result = m_dllAvFormat.avformat_open_input(&m_pFormatContext, m_filename.c_str(), iformat, NULL);
if(result < 0)
{
Close();
return false;
}
}
// set the interrupt callback, appeared in libavformat 53.15.0
m_pFormatContext->interrupt_callback = int_cb;
m_bMatroska = strncmp(m_pFormatContext->iformat->name, "matroska", 8) == 0; // for "matroska.webm"
m_bAVI = strcmp(m_pFormatContext->iformat->name, "avi") == 0;
// if format can be nonblocking, let's use that
m_pFormatContext->flags |= AVFMT_FLAG_NONBLOCK;
// analyse very short to speed up mjpeg playback start
if (iformat && (strcmp(iformat->name, "mjpeg") == 0) && m_ioContext->seekable == 0)
m_pFormatContext->max_analyze_duration = 500000;
if(/*m_bAVI || */m_bMatroska)
m_pFormatContext->max_analyze_duration = 0;
if (live)
m_pFormatContext->flags |= AVFMT_FLAG_NOBUFFER;
result = m_dllAvFormat.avformat_find_stream_info(m_pFormatContext, NULL);
if(result < 0)
{
Close();
return false;
}
if(!GetStreams())
{
Close();
return false;
}
if(m_pFile)
{
int64_t len = m_pFile->GetLength();
int64_t tim = GetStreamLength();
if(len > 0 && tim > 0)
{
unsigned rate = len * 1000 / tim;
unsigned maxrate = rate + 1024 * 1024 / 8;
if(m_pFile->IoControl(IOCTRL_CACHE_SETRATE, &maxrate) >= 0)
CLog::Log(LOGDEBUG, "COMXPlayer::OpenFile - set cache throttle rate to %u bytes per second", maxrate);
}
}
m_speed = DVD_PLAYSPEED_NORMAL;
if(dump_format)
m_dllAvFormat.av_dump_format(m_pFormatContext, 0, m_filename.c_str(), 0);
UpdateCurrentPTS();
m_open = true;
return true;
}
void OMXReader::ClearStreams()
{
m_audio_index = -1;
m_video_index = -1;
m_subtitle_index = -1;
m_audio_count = 0;
m_video_count = 0;
m_subtitle_count = 0;
for(int i = 0; i < MAX_STREAMS; i++)
{
if(m_streams[i].extradata)
free(m_streams[i].extradata);
memset(m_streams[i].language, 0, sizeof(m_streams[i].language));
m_streams[i].codec_name = "";
m_streams[i].name = "";
m_streams[i].type = OMXSTREAM_NONE;
m_streams[i].stream = NULL;
m_streams[i].extradata = NULL;
m_streams[i].extrasize = 0;
m_streams[i].index = 0;
m_streams[i].id = 0;
}
m_program = UINT_MAX;
}
bool OMXReader::Close()
{
if (m_pFormatContext)
{
if (m_ioContext && m_pFormatContext->pb && m_pFormatContext->pb != m_ioContext)
{
CLog::Log(LOGWARNING, "CDVDDemuxFFmpeg::Dispose - demuxer changed our byte context behind our back, possible memleak");
m_ioContext = m_pFormatContext->pb;
}
m_dllAvFormat.avformat_close_input(&m_pFormatContext);
}
if(m_ioContext)
{
m_dllAvUtil.av_free(m_ioContext->buffer);
m_dllAvUtil.av_free(m_ioContext);
}
m_ioContext = NULL;
m_pFormatContext = NULL;
if(m_pFile)
{
m_pFile->Close();
delete m_pFile;
m_pFile = NULL;
}
m_dllAvFormat.avformat_network_deinit();
m_dllAvUtil.Unload();
m_dllAvCodec.Unload();
m_dllAvFormat.Unload();
m_open = false;
m_filename = "";
m_bMatroska = false;
m_bAVI = false;
m_video_count = 0;
m_audio_count = 0;
m_subtitle_count = 0;
m_audio_index = -1;
m_video_index = -1;
m_subtitle_index = -1;
m_eof = false;
m_chapter_count = 0;
m_iCurrentPts = DVD_NOPTS_VALUE;
m_speed = DVD_PLAYSPEED_NORMAL;
ClearStreams();
return true;
}
/*void OMXReader::FlushRead()
{
m_iCurrentPts = DVD_NOPTS_VALUE;
if(!m_pFormatContext)
return;
ff_read_frame_flush(m_pFormatContext);
}*/
bool OMXReader::SeekTime(int time, bool backwords, double *startpts)
{
if(time < 0)
time = 0;
if(!m_pFormatContext)
return false;
if(m_pFile && !m_pFile->IoControl(IOCTRL_SEEK_POSSIBLE, NULL))
{
CLog::Log(LOGDEBUG, "%s - input stream reports it is not seekable", __FUNCTION__);
return false;
}
Lock();
//FlushRead();
if(m_ioContext)
m_ioContext->buf_ptr = m_ioContext->buf_end;
int64_t seek_pts = (int64_t)time * (AV_TIME_BASE / 1000);
if (m_pFormatContext->start_time != (int64_t)AV_NOPTS_VALUE)
seek_pts += m_pFormatContext->start_time;
int ret = m_dllAvFormat.av_seek_frame(m_pFormatContext, -1, seek_pts, backwords ? AVSEEK_FLAG_BACKWARD : 0);
if(ret >= 0)
UpdateCurrentPTS();
// in this case the start time is requested time
if(startpts)
*startpts = DVD_MSEC_TO_TIME(time);
// demuxer will return failure, if you seek to eof
m_eof = false;
if (m_pFile && m_pFile->IsEOF() && ret <= 0)
{
m_eof = true;
ret = 0;
}
CLog::Log(LOGDEBUG, "OMXReader::SeekTime(%d) - seek ended up on time %d",time,(int)(m_iCurrentPts / DVD_TIME_BASE * 1000));
UnLock();
return (ret >= 0);
}
AVMediaType OMXReader::PacketType(OMXPacket *pkt)
{
if(!m_pFormatContext || !pkt)
return AVMEDIA_TYPE_UNKNOWN;
return m_pFormatContext->streams[pkt->stream_index]->codec->codec_type;
}
OMXPacket *OMXReader::Read()
{
AVPacket pkt;
OMXPacket *m_omx_pkt = NULL;
int result = -1;
if(!m_pFormatContext)
return NULL;
Lock();
// assume we are not eof
if(m_pFormatContext->pb)
m_pFormatContext->pb->eof_reached = 0;
// keep track if ffmpeg doesn't always set these
pkt.size = 0;
pkt.data = NULL;
pkt.stream_index = MAX_OMX_STREAMS;
result = m_dllAvFormat.av_read_frame(m_pFormatContext, &pkt);
if (result < 0)
{
m_eof = true;
//FlushRead();
//m_dllAvCodec.av_free_packet(&pkt);
UnLock();
return NULL;
}
else if (pkt.size < 0 || pkt.stream_index >= MAX_OMX_STREAMS)
{
// XXX, in some cases ffmpeg returns a negative packet size
if(m_pFormatContext->pb && !m_pFormatContext->pb->eof_reached)
{
CLog::Log(LOGERROR, "OMXReader::Read no valid packet");
//FlushRead();
}
m_dllAvCodec.av_free_packet(&pkt);
m_eof = true;
UnLock();
return NULL;
}
AVStream *pStream = m_pFormatContext->streams[pkt.stream_index];
/* only read packets for active streams */
/*
if(!IsActive(pkt.stream_index))
{
m_dllAvCodec.av_free_packet(&pkt);
UnLock();
return NULL;
}
*/
// lavf sometimes bugs out and gives 0 dts/pts instead of no dts/pts
// since this could only happens on initial frame under normal
// circomstances, let's assume it is wrong all the time
#if 0
if(pkt.dts == 0)
pkt.dts = AV_NOPTS_VALUE;
if(pkt.pts == 0)
pkt.pts = AV_NOPTS_VALUE;
#endif
if(m_bMatroska && pStream->codec && pStream->codec->codec_type == AVMEDIA_TYPE_VIDEO)
{ // matroska can store different timestamps
// for different formats, for native stored
// stuff it is pts, but for ms compatibility
// tracks, it is really dts. sadly ffmpeg
// sets these two timestamps equal all the
// time, so we select it here instead
if(pStream->codec->codec_tag == 0)
pkt.dts = AV_NOPTS_VALUE;
else
pkt.pts = AV_NOPTS_VALUE;
}
// we need to get duration slightly different for matroska embedded text subtitels
if(m_bMatroska && pStream->codec->codec_id == AV_CODEC_ID_SUBRIP && pkt.convergence_duration != 0)
pkt.duration = pkt.convergence_duration;
if(m_bAVI && pStream->codec && pStream->codec->codec_type == AVMEDIA_TYPE_VIDEO)
{
// AVI's always have borked pts, specially if m_pFormatContext->flags includes
// AVFMT_FLAG_GENPTS so always use dts
pkt.pts = AV_NOPTS_VALUE;
}
m_omx_pkt = AllocPacket(pkt.size);
/* oom error allocation av packet */
if(!m_omx_pkt)
{
m_eof = true;
m_dllAvCodec.av_free_packet(&pkt);
UnLock();
return NULL;
}
m_omx_pkt->codec_type = pStream->codec->codec_type;
/* copy content into our own packet */
m_omx_pkt->size = pkt.size;
if (pkt.data)
memcpy(m_omx_pkt->data, pkt.data, m_omx_pkt->size);
m_omx_pkt->stream_index = pkt.stream_index;
GetHints(pStream, &m_omx_pkt->hints);
m_omx_pkt->dts = ConvertTimestamp(pkt.dts, pStream->time_base.den, pStream->time_base.num);
m_omx_pkt->pts = ConvertTimestamp(pkt.pts, pStream->time_base.den, pStream->time_base.num);
m_omx_pkt->duration = DVD_SEC_TO_TIME((double)pkt.duration * pStream->time_base.num / pStream->time_base.den);
// used to guess streamlength
if (m_omx_pkt->dts != DVD_NOPTS_VALUE && (m_omx_pkt->dts > m_iCurrentPts || m_iCurrentPts == DVD_NOPTS_VALUE))
m_iCurrentPts = m_omx_pkt->dts;
// check if stream has passed full duration, needed for live streams
if(pkt.dts != (int64_t)AV_NOPTS_VALUE)
{
int64_t duration;
duration = pkt.dts;
if(pStream->start_time != (int64_t)AV_NOPTS_VALUE)
duration -= pStream->start_time;
if(duration > pStream->duration)
{
pStream->duration = duration;
duration = m_dllAvUtil.av_rescale_rnd(pStream->duration, (int64_t)pStream->time_base.num * AV_TIME_BASE,
pStream->time_base.den, AV_ROUND_NEAR_INF);
if ((m_pFormatContext->duration == (int64_t)AV_NOPTS_VALUE)
|| (m_pFormatContext->duration != (int64_t)AV_NOPTS_VALUE && duration > m_pFormatContext->duration))
m_pFormatContext->duration = duration;
}
}
m_dllAvCodec.av_free_packet(&pkt);
UnLock();
return m_omx_pkt;
}
bool OMXReader::GetStreams()
{
if(!m_pFormatContext)
return false;
unsigned int m_program = UINT_MAX;
ClearStreams();
if (m_pFormatContext->nb_programs)
{
// look for first non empty stream and discard nonselected programs
for (unsigned int i = 0; i < m_pFormatContext->nb_programs; i++)
{
if(m_program == UINT_MAX && m_pFormatContext->programs[i]->nb_stream_indexes > 0)
m_program = i;
if(i != m_program)
m_pFormatContext->programs[i]->discard = AVDISCARD_ALL;
}
if(m_program != UINT_MAX)
{
// add streams from selected program
for (unsigned int i = 0; i < m_pFormatContext->programs[m_program]->nb_stream_indexes; i++)
AddStream(m_pFormatContext->programs[m_program]->stream_index[i]);
}
}
// if there were no programs or they were all empty, add all streams
if (m_program == UINT_MAX)
{
for (unsigned int i = 0; i < m_pFormatContext->nb_streams; i++)
AddStream(i);
}
if(m_video_count)
SetActiveStreamInternal(OMXSTREAM_VIDEO, 0);
if(m_audio_count)
SetActiveStreamInternal(OMXSTREAM_AUDIO, 0);
if(m_subtitle_count)
SetActiveStreamInternal(OMXSTREAM_SUBTITLE, 0);
int i = 0;
for(i = 0; i < MAX_OMX_CHAPTERS; i++)
{
m_chapters[i].name = "";
m_chapters[i].seekto_ms = 0;
m_chapters[i].ts = 0;
}
m_chapter_count = 0;
if(m_video_index != -1)
{
//m_current_chapter = 0;
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52,14,0)
m_chapter_count = (m_pFormatContext->nb_chapters > MAX_OMX_CHAPTERS) ? MAX_OMX_CHAPTERS : m_pFormatContext->nb_chapters;
for(i = 0; i < m_chapter_count; i++)
{
if(i > MAX_OMX_CHAPTERS)
break;
AVChapter *chapter = m_pFormatContext->chapters[i];
if(!chapter)
continue;
m_chapters[i].seekto_ms = ConvertTimestamp(chapter->start, chapter->time_base.den, chapter->time_base.num) / 1000;
m_chapters[i].ts = m_chapters[i].seekto_ms / 1000;
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52,83,0)
AVDictionaryEntry *titleTag = m_dllAvUtil.av_dict_get(m_pFormatContext->chapters[i]->metadata,"title", NULL, 0);
if (titleTag)
m_chapters[i].name = titleTag->value;
#else
if(m_pFormatContext->chapters[i]->title)
m_chapters[i].name = m_pFormatContext->chapters[i]->title;
#endif
printf("Chapter : \t%d \t%s \t%8.2f\n", i, m_chapters[i].name.c_str(), m_chapters[i].ts);
}
}
#endif
return true;
}
void OMXReader::AddStream(int id)
{
if(id > MAX_STREAMS || !m_pFormatContext)
return;
AVStream *pStream = m_pFormatContext->streams[id];
// discard PNG stream as we don't support it, and it stops mp3 files playing with album art
if (pStream->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
(pStream->codec->codec_id == CODEC_ID_PNG))
return;
switch (pStream->codec->codec_type)
{
case AVMEDIA_TYPE_AUDIO:
m_streams[id].stream = pStream;
m_streams[id].type = OMXSTREAM_AUDIO;
m_streams[id].index = m_audio_count;
m_streams[id].codec_name = GetStreamCodecName(pStream);
m_streams[id].id = id;
m_audio_count++;
GetHints(pStream, &m_streams[id].hints);
break;
case AVMEDIA_TYPE_VIDEO:
m_streams[id].stream = pStream;
m_streams[id].type = OMXSTREAM_VIDEO;
m_streams[id].index = m_video_count;
m_streams[id].codec_name = GetStreamCodecName(pStream);
m_streams[id].id = id;
m_video_count++;
GetHints(pStream, &m_streams[id].hints);
break;
case AVMEDIA_TYPE_SUBTITLE:
m_streams[id].stream = pStream;
m_streams[id].type = OMXSTREAM_SUBTITLE;
m_streams[id].index = m_subtitle_count;
m_streams[id].codec_name = GetStreamCodecName(pStream);
m_streams[id].id = id;
m_subtitle_count++;
GetHints(pStream, &m_streams[id].hints);
break;
default:
return;
}
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52,83,0)
AVDictionaryEntry *langTag = m_dllAvUtil.av_dict_get(pStream->metadata, "language", NULL, 0);
if (langTag)
strncpy(m_streams[id].language, langTag->value, 3);
#else
strcpy( m_streams[id].language, pStream->language );
#endif
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52,83,0)
AVDictionaryEntry *titleTag = m_dllAvUtil.av_dict_get(pStream->metadata,"title", NULL, 0);
if (titleTag)
m_streams[id].name = titleTag->value;
#else
m_streams[id].name = pStream->title;
#endif
if( pStream->codec->extradata && pStream->codec->extradata_size > 0 )
{
m_streams[id].extrasize = pStream->codec->extradata_size;
m_streams[id].extradata = malloc(pStream->codec->extradata_size);
memcpy(m_streams[id].extradata, pStream->codec->extradata, pStream->codec->extradata_size);
}
}
bool OMXReader::SetActiveStreamInternal(OMXStreamType type, unsigned int index)
{
bool ret = false;
switch(type)
{
case OMXSTREAM_AUDIO:
if((int)index > (m_audio_count - 1))
index = (m_audio_count - 1);
break;
case OMXSTREAM_VIDEO:
if((int)index > (m_video_count - 1))
index = (m_video_count - 1);
break;
case OMXSTREAM_SUBTITLE:
if((int)index > (m_subtitle_count - 1))
index = (m_subtitle_count - 1);
break;
default:
break;
}
for(int i = 0; i < MAX_STREAMS; i++)
{
if(m_streams[i].type == type && m_streams[i].index == index)
{
switch(m_streams[i].type)
{
case OMXSTREAM_AUDIO:
m_audio_index = i;
ret = true;
break;
case OMXSTREAM_VIDEO:
m_video_index = i;
ret = true;
break;
case OMXSTREAM_SUBTITLE:
m_subtitle_index = i;
ret = true;
break;
default:
break;
}
}
}
if(!ret)
{
switch(type)
{
case OMXSTREAM_AUDIO:
m_audio_index = -1;
break;
case OMXSTREAM_VIDEO:
m_video_index = -1;
break;
case OMXSTREAM_SUBTITLE:
m_subtitle_index = -1;
break;
default:
break;
}
}
return ret;
}
bool OMXReader::IsActive(int stream_index)
{
if((m_audio_index != -1) && m_streams[m_audio_index].id == stream_index)
return true;
if((m_video_index != -1) && m_streams[m_video_index].id == stream_index)
return true;
if((m_subtitle_index != -1) && m_streams[m_subtitle_index].id == stream_index)
return true;
return false;
}
bool OMXReader::IsActive(OMXStreamType type, int stream_index)
{
if((m_audio_index != -1) && m_streams[m_audio_index].id == stream_index && m_streams[m_audio_index].type == type)
return true;
if((m_video_index != -1) && m_streams[m_video_index].id == stream_index && m_streams[m_video_index].type == type)
return true;
if((m_subtitle_index != -1) && m_streams[m_subtitle_index].id == stream_index && m_streams[m_subtitle_index].type == type)
return true;
return false;
}
bool OMXReader::GetHints(AVStream *stream, COMXStreamInfo *hints)
{
if(!hints || !stream)
return false;
hints->codec = stream->codec->codec_id;
hints->extradata = stream->codec->extradata;
hints->extrasize = stream->codec->extradata_size;
hints->channels = stream->codec->channels;
hints->samplerate = stream->codec->sample_rate;
hints->blockalign = stream->codec->block_align;
hints->bitrate = stream->codec->bit_rate;
hints->bitspersample = stream->codec->bits_per_coded_sample;
if(hints->bitspersample == 0)
hints->bitspersample = 16;
hints->width = stream->codec->width;
hints->height = stream->codec->height;
hints->profile = stream->codec->profile;
hints->orientation = 0;
if(stream->codec->codec_type == AVMEDIA_TYPE_VIDEO)
{
hints->fpsrate = stream->r_frame_rate.num;
hints->fpsscale = stream->r_frame_rate.den;
if(m_bMatroska && stream->avg_frame_rate.den && stream->avg_frame_rate.num)
{
hints->fpsrate = stream->avg_frame_rate.num;
hints->fpsscale = stream->avg_frame_rate.den;
}
else if(stream->r_frame_rate.num && stream->r_frame_rate.den)
{
hints->fpsrate = stream->r_frame_rate.num;
hints->fpsscale = stream->r_frame_rate.den;
}
else
{
hints->fpsscale = 0;
hints->fpsrate = 0;
}
if (stream->sample_aspect_ratio.num != 0)
hints->aspect = av_q2d(stream->sample_aspect_ratio) * stream->codec->width / stream->codec->height;
else if (stream->codec->sample_aspect_ratio.num != 0)
hints->aspect = av_q2d(stream->codec->sample_aspect_ratio) * stream->codec->width / stream->codec->height;
else
hints->aspect = 0.0f;
if (m_bAVI && stream->codec->codec_id == CODEC_ID_H264)
hints->ptsinvalid = true;
AVDictionaryEntry *rtag = m_dllAvUtil.av_dict_get(stream->metadata, "rotate", NULL, 0);
if (rtag)
hints->orientation = atoi(rtag->value);
}
return true;
}
bool OMXReader::GetHints(OMXStreamType type, unsigned int index, COMXStreamInfo &hints)
{
for(unsigned int i = 0; i < MAX_STREAMS; i++)
{
if(m_streams[i].type == type && m_streams[i].index == i)
{
hints = m_streams[i].hints;
return true;
}
}
return false;
}
bool OMXReader::GetHints(OMXStreamType type, COMXStreamInfo &hints)
{
bool ret = false;
switch (type)
{
case OMXSTREAM_AUDIO:
if(m_audio_index != -1)
{
ret = true;
hints = m_streams[m_audio_index].hints;
}
break;
case OMXSTREAM_VIDEO:
if(m_video_index != -1)
{
ret = true;
hints = m_streams[m_video_index].hints;
}
break;
case OMXSTREAM_SUBTITLE:
if(m_subtitle_index != -1)
{
ret = true;
hints = m_streams[m_subtitle_index].hints;
}
break;
default:
break;
}
return ret;
}
bool OMXReader::IsEof()
{
return m_eof;
}
void OMXReader::FreePacket(OMXPacket *pkt)
{
if(pkt)
{
if(pkt->data)
free(pkt->data);
free(pkt);
}
}
OMXPacket *OMXReader::AllocPacket(int size)
{
OMXPacket *pkt = (OMXPacket *)malloc(sizeof(OMXPacket));
if(pkt)
{
memset(pkt, 0, sizeof(OMXPacket));
pkt->data = (uint8_t*) malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
if(!pkt->data)
{
free(pkt);
pkt = NULL;
}
else
{
memset(pkt->data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
pkt->size = size;
pkt->dts = DVD_NOPTS_VALUE;
pkt->pts = DVD_NOPTS_VALUE;
pkt->now = DVD_NOPTS_VALUE;
pkt->duration = DVD_NOPTS_VALUE;
}
}
return pkt;
}
bool OMXReader::SetActiveStream(OMXStreamType type, unsigned int index)
{
bool ret = false;
Lock();
ret = SetActiveStreamInternal(type, index);
UnLock();
return ret;
}
bool OMXReader::SeekChapter(int chapter, double* startpts)
{
if(chapter < 1)
chapter = 1;
if(m_pFormatContext == NULL)
return false;
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52,14,0)
if(chapter < 1 || chapter > (int)m_pFormatContext->nb_chapters)
return false;
AVChapter *ch = m_pFormatContext->chapters[chapter-1];
double dts = ConvertTimestamp(ch->start, ch->time_base.den, ch->time_base.num);
return SeekTime(DVD_TIME_TO_MSEC(dts), 0, startpts);
#else
return false;
#endif
}
double OMXReader::ConvertTimestamp(int64_t pts, int den, int num)
{
if(m_pFormatContext == NULL)
return DVD_NOPTS_VALUE;
if (pts == (int64_t)AV_NOPTS_VALUE)
return DVD_NOPTS_VALUE;
// do calculations in floats as they can easily overflow otherwise
// we don't care for having a completly exact timestamp anyway
double timestamp = (double)pts * num / den;
double starttime = 0.0f;
if (m_pFormatContext->start_time != (int64_t)AV_NOPTS_VALUE)
starttime = (double)m_pFormatContext->start_time / AV_TIME_BASE;
if(timestamp > starttime)
timestamp -= starttime;
else if( timestamp + 0.1f > starttime )
timestamp = 0;