/// /// @file softhddev.c @brief A software HD device plugin for VDR. /// /// Copyright (c) 2011, 2012 by Johns. All Rights Reserved. /// /// Contributor(s): /// /// License: AGPLv3 /// /// This program is free software: you can redistribute it and/or modify /// it under the terms of the GNU Affero General Public License as /// published by the Free Software Foundation, either version 3 of the /// License. /// /// 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 Affero General Public License for more details. /// /// $Id$ ////////////////////////////////////////////////////////////////////////////// #include #include #include #include #include #include #include #include #define _(str) gettext(str) ///< gettext shortcut #define _N(str) str ///< gettext_noop shortcut #include #ifndef __USE_GNU #define __USE_GNU #endif #include #include "misc.h" #include "softhddev.h" #include "audio.h" #include "video.h" #include "codec.h" ////////////////////////////////////////////////////////////////////////////// // Variables ////////////////////////////////////////////////////////////////////////////// #ifdef USE_VDPAU static char ConfigVdpauDecoder = 1; ///< use vdpau decoder, if possible #else #define ConfigVdpauDecoder 0 ///< no vdpau decoder configured #endif static char ConfigStartSuspended; ///< flag to start in suspend mode static char ConfigFullscreen; ///< fullscreen modus static char ConfigStartX11Server; ///< flag start the x11 server static pthread_mutex_t SuspendLockMutex; ///< suspend lock mutex static volatile char StreamFreezed; ///< stream freezed ////////////////////////////////////////////////////////////////////////////// // Audio ////////////////////////////////////////////////////////////////////////////// static volatile char NewAudioStream; ///< new audio stream static volatile char SkipAudio; ///< skip audio stream static AudioDecoder *MyAudioDecoder; ///< audio decoder static enum CodecID AudioCodecID; ///< current codec id static int AudioChannelID; ///< current audio channel id /// Minimum free space in audio buffer 8 packets for 8 channels #define AUDIO_MIN_BUFFER_FREE (3072 * 8 * 8) #define AUDIO_BUFFER_SIZE (512 * 1024) ///< audio PES buffer default size static AVPacket AudioAvPkt[1]; ///< audio a/v packet ////////////////////////////////////////////////////////////////////////////// // Audio codec parser ////////////////////////////////////////////////////////////////////////////// /// /// Mpeg bitrate table. /// /// BitRateTable[Version][Layer][Index] /// static const uint16_t BitRateTable[2][4][16] = { // MPEG Version 1 {{}, {0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 0}, {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 0}, {0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 0}}, // MPEG Version 2 & 2.5 {{}, {0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 0}, {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0}, {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0} } }; /// /// Mpeg samperate table. /// static const uint16_t SampleRateTable[4] = { 44100, 48000, 32000, 0 }; /// /// Fast check for Mpeg audio. /// /// 4 bytes 0xFFExxxxx Mpeg audio /// static inline int FastMpegCheck(const uint8_t * p) { if (p[0] != 0xFF) { // 11bit frame sync return 0; } if ((p[1] & 0xE0) != 0xE0) { return 0; } if ((p[1] & 0x18) == 0x08) { // version ID - 01 reserved return 0; } if (!(p[1] & 0x06)) { // layer description - 00 reserved return 0; } if ((p[2] & 0xF0) == 0xF0) { // bitrate index - 1111 reserved return 0; } if ((p[2] & 0x0C) == 0x0C) { // sampling rate index - 11 reserved return 0; } return 1; } /// /// Check for Mpeg audio. /// /// 0xFFEx already checked. /// /// @param data incomplete PES packet /// @param size number of bytes /// /// @retval <0 possible mpeg audio, but need more data /// @retval 0 no valid mpeg audio /// @retval >0 valid mpeg audio /// /// From: http://www.mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm /// /// AAAAAAAA AAABBCCD EEEEFFGH IIJJKLMM /// /// o a 11x Frame sync /// o b 2x Mpeg audio version (2.5, reserved, 2, 1) /// o c 2x Layer (reserved, III, II, I) /// o e 2x BitRate index /// o f 2x SampleRate index (4100, 48000, 32000, 0) /// o g 1x Paddding bit /// o .. Doesn't care /// /// frame length: /// Layer I: /// FrameLengthInBytes = (12 * BitRate / SampleRate + Padding) * 4 /// Layer II & III: /// FrameLengthInBytes = 144 * BitRate / SampleRate + Padding /// static int MpegCheck(const uint8_t * data, int size) { int mpeg2; int mpeg25; int layer; int bit_rate_index; int sample_rate_index; int padding; int bit_rate; int sample_rate; int frame_size; mpeg2 = !(data[1] & 0x08) && (data[1] & 0x10); mpeg25 = !(data[1] & 0x08) && !(data[1] & 0x10); layer = 4 - ((data[1] >> 1) & 0x03); bit_rate_index = (data[2] >> 4) & 0x0F; sample_rate_index = (data[2] >> 2) & 0x03; padding = (data[2] >> 1) & 0x01; sample_rate = SampleRateTable[sample_rate_index]; if (!sample_rate) { // no valid sample rate try next // moved into fast check abort(); return 0; } sample_rate >>= mpeg2; // mpeg 2 half rate sample_rate >>= mpeg25; // mpeg 2.5 quarter rate bit_rate = BitRateTable[mpeg2 | mpeg25][layer][bit_rate_index]; if (!bit_rate) { // no valid bit-rate try next // FIXME: move into fast check? return 0; } bit_rate *= 1000; switch (layer) { case 1: frame_size = (12 * bit_rate) / sample_rate; frame_size = (frame_size + padding) * 4; break; case 2: case 3: default: frame_size = (144 * bit_rate) / sample_rate; frame_size = frame_size + padding; break; } if (0) { Debug(3, "pesdemux: mpeg%s layer%d bitrate=%d samplerate=%d %d bytes\n", mpeg25 ? "2.5" : mpeg2 ? "2" : "1", layer, bit_rate, sample_rate, frame_size); } if (frame_size + 4 > size) { return -frame_size - 4; } // check if after this frame a new mpeg frame starts if (FastMpegCheck(data + frame_size)) { return frame_size; } return 0; } /// /// Fast check for AAC LATM audio. /// /// 3 bytes 0x56Exxx AAC LATM audio /// static inline int FastLatmCheck(const uint8_t * p) { if (p[0] != 0x56) { // 11bit sync return 0; } if ((p[1] & 0xE0) != 0xE0) { return 0; } return 1; } /// /// Check for AAC LATM audio. /// /// 0x56Exxx already checked. /// /// @param data incomplete PES packet /// @param size number of bytes /// /// @retval <0 possible AAC LATM audio, but need more data /// @retval 0 no valid AAC LATM audio /// @retval >0 valid AAC LATM audio /// static int LatmCheck(const uint8_t * data, int size) { int frame_size; // 13 bit frame size without header frame_size = ((data[1] & 0x1F) << 8) + data[2]; frame_size += 3; if (frame_size + 2 > size) { return -frame_size - 2; } // check if after this frame a new AAC LATM frame starts if (FastLatmCheck(data + frame_size)) { return frame_size; } return 0; } /// /// Possible AC3 frame sizes. /// /// from ATSC A/52 table 5.18 frame size code table. /// const uint16_t Ac3FrameSizeTable[38][3] = { {64, 69, 96}, {64, 70, 96}, {80, 87, 120}, {80, 88, 120}, {96, 104, 144}, {96, 105, 144}, {112, 121, 168}, {112, 122, 168}, {128, 139, 192}, {128, 140, 192}, {160, 174, 240}, {160, 175, 240}, {192, 208, 288}, {192, 209, 288}, {224, 243, 336}, {224, 244, 336}, {256, 278, 384}, {256, 279, 384}, {320, 348, 480}, {320, 349, 480}, {384, 417, 576}, {384, 418, 576}, {448, 487, 672}, {448, 488, 672}, {512, 557, 768}, {512, 558, 768}, {640, 696, 960}, {640, 697, 960}, {768, 835, 1152}, {768, 836, 1152}, {896, 975, 1344}, {896, 976, 1344}, {1024, 1114, 1536}, {1024, 1115, 1536}, {1152, 1253, 1728}, {1152, 1254, 1728}, {1280, 1393, 1920}, {1280, 1394, 1920}, }; /// /// Fast check for AC3 audio. /// /// 5 bytes 0x0B77xxxxxx AC3 audio /// static inline int FastAc3Check(const uint8_t * p) { if (p[0] != 0x0B) { // 16bit sync return 0; } if (p[1] != 0x77) { return 0; } return 1; } /// /// Check for AC-3 audio. /// /// 0x0B77xxxxxx already checked. /// /// @param data incomplete PES packet /// @param size number of bytes /// /// @retval <0 possible AC-3 audio, but need more data /// @retval 0 no valid AC-3 audio /// @retval >0 valid AC-3 audio /// static int Ac3Check(const uint8_t * data, int size) { int fscod; int frmsizcod; int frame_size; // crc1 crc1 fscod|frmsizcod fscod = data[4] >> 6; frmsizcod = data[4] & 0x3F; frame_size = Ac3FrameSizeTable[frmsizcod][fscod] * 2; if (frame_size + 2 > size) { return -frame_size - 2; } // check if after this frame a new AC-3 frame starts if (FastAc3Check(data + frame_size)) { return frame_size; } return 0; } #ifndef NO_TS_AUDIO ////////////////////////////////////////////////////////////////////////////// // PES Demux ////////////////////////////////////////////////////////////////////////////// /// /// PES type. /// enum { PES_PROG_STREAM_MAP = 0xBC, PES_PRIVATE_STREAM1 = 0xBD, PES_PADDING_STREAM = 0xBE, ///< filler, padding stream PES_PRIVATE_STREAM2 = 0xBF, PES_AUDIO_STREAM_S = 0xC0, PES_AUDIO_STREAM_E = 0xDF, PES_VIDEO_STREAM_S = 0xE0, PES_VIDEO_STREAM_E = 0xEF, PES_ECM_STREAM = 0xF0, PES_EMM_STREAM = 0xF1, PES_DSM_CC_STREAM = 0xF2, PES_ISO13522_STREAM = 0xF3, PES_TYPE_E_STREAM = 0xF8, ///< ITU-T rec. h.222.1 type E stream PES_PROG_STREAM_DIR = 0xFF, }; /// /// PES parser state. /// enum { PES_INIT, ///< unknown codec PES_SKIP, ///< skip packet PES_SYNC, ///< search packet sync byte PES_HEADER, ///< copy header PES_START, ///< pes packet start found PES_PAYLOAD, ///< copy payload PES_LPCM_HEADER, ///< copy lcpm header PES_LPCM_PAYLOAD, ///< copy lcpm payload }; #define PES_START_CODE_SIZE 6 ///< size of pes start code with length #define PES_HEADER_SIZE 9 ///< size of pes header #define PES_MAX_HEADER_SIZE (PES_HEADER_SIZE + 256) ///< maximal header size #define PES_MAX_PAYLOAD (512 * 1024) ///< max pay load size /// /// PES demuxer. /// typedef struct _pes_demux_ { //int Pid; ///< packet id //int PcrPid; ///< program clock reference pid //int StreamType; ///< stream type int State; ///< parsing state uint8_t Header[PES_MAX_HEADER_SIZE]; ///< buffer for pes header int HeaderIndex; ///< header index int HeaderSize; ///< size of pes header uint8_t *Buffer; ///< payload buffer int Index; ///< buffer index int Skip; ///< buffer skip int Size; ///< size of payload buffer uint8_t StartCode; ///< pes packet start code int64_t PTS; ///< presentation time stamp int64_t DTS; ///< decode time stamp } PesDemux; /// /// Initialize a packetized elementary stream demuxer. /// /// @param pesdx packetized elementary stream demuxer /// void PesInit(PesDemux * pesdx) { memset(pesdx, 0, sizeof(*pesdx)); pesdx->Size = PES_MAX_PAYLOAD; pesdx->Buffer = av_malloc(PES_MAX_PAYLOAD + FF_INPUT_BUFFER_PADDING_SIZE); if (!pesdx->Buffer) { Fatal(_("pesdemux: out of memory\n")); } pesdx->PTS = AV_NOPTS_VALUE; // reset pesdx->DTS = AV_NOPTS_VALUE; } /// /// Reset packetized elementary stream demuxer. /// void PesReset(PesDemux * pesdx) { pesdx->State = PES_INIT; pesdx->Index = 0; pesdx->Skip = 0; pesdx->PTS = AV_NOPTS_VALUE; pesdx->DTS = AV_NOPTS_VALUE; } /// /// Parse packetized elementary stream. /// /// @param pesdx packetized elementary stream demuxer /// @param data payload data of transport stream /// @param size number of payload data bytes /// @param is_start flag, start of pes packet /// void PesParse(PesDemux * pesdx, const uint8_t * data, int size, int is_start) { const uint8_t *p; const uint8_t *q; if (is_start) { // start of pes packet if (pesdx->Index && pesdx->Skip) { // copy remaining bytes down pesdx->Index -= pesdx->Skip; memmove(pesdx->Buffer, pesdx->Buffer + pesdx->Skip, pesdx->Index); pesdx->Skip = 0; } pesdx->State = PES_SYNC; pesdx->HeaderIndex = 0; pesdx->PTS = AV_NOPTS_VALUE; // reset if not yet used pesdx->DTS = AV_NOPTS_VALUE; } // cleanup, if too much cruft if (pesdx->Skip > PES_MAX_PAYLOAD / 2) { // copy remaining bytes down pesdx->Index -= pesdx->Skip; memmove(pesdx->Buffer, pesdx->Buffer + pesdx->Skip, pesdx->Index); pesdx->Skip = 0; } p = data; do { int n; switch (pesdx->State) { case PES_SKIP: // skip this packet return; case PES_START: // at start of pes packet payload #if 0 // Played with PlayAudio // FIXME: need 0x80 -- 0xA0 state if (AudioCodecID == CODEC_ID_NONE) { if ((*p & 0xF0) == 0x80) { // AC-3 & DTS Debug(3, "pesdemux: dvd ac-3\n"); } else if ((*p & 0xFF) == 0xA0) { // LPCM Debug(3, "pesdemux: dvd lpcm\n"); pesdx->State = PES_LPCM_HEADER; pesdx->HeaderIndex = 0; pesdx->HeaderSize = 7; // FIXME: need harder LPCM check //break; } } #endif case PES_INIT: // find start of audio packet // FIXME: increase if needed the buffer // fill buffer n = pesdx->Size - pesdx->Index; if (n > size) { n = size; } memcpy(pesdx->Buffer + pesdx->Index, p, n); pesdx->Index += n; p += n; size -= n; q = pesdx->Buffer + pesdx->Skip; n = pesdx->Index - pesdx->Skip; while (n >= 5) { int r; unsigned codec_id; // 4 bytes 0xFFExxxxx Mpeg audio // 3 bytes 0x56Exxx AAC LATM audio // 5 bytes 0x0B77xxxxxx AC3 audio // PCM audio can't be found r = 0; if (FastMpegCheck(q)) { r = MpegCheck(q, n); codec_id = CODEC_ID_MP2; } if (!r && FastAc3Check(q)) { r = Ac3Check(q, n); codec_id = CODEC_ID_AC3; } if (!r && FastLatmCheck(q)) { r = LatmCheck(q, n); codec_id = CODEC_ID_AAC_LATM; } if (r < 0) { // need more bytes break; } if (r > 0) { AVPacket avpkt[1]; // new codec id, close and open new if (AudioCodecID != codec_id) { Debug(3, "pesdemux: new codec %#06x -> %#06x\n", AudioCodecID, codec_id); CodecAudioClose(MyAudioDecoder); CodecAudioOpen(MyAudioDecoder, NULL, codec_id); AudioCodecID = codec_id; } av_init_packet(avpkt); avpkt->data = (void *)q; avpkt->size = r; avpkt->pts = pesdx->PTS; avpkt->dts = pesdx->DTS; CodecAudioDecode(MyAudioDecoder, avpkt); pesdx->PTS = AV_NOPTS_VALUE; pesdx->DTS = AV_NOPTS_VALUE; pesdx->Skip += r; // FIXME: switch to decoder state //pesdx->State = PES_MPEG_DECODE; break; } // try next byte ++pesdx->Skip; ++q; --n; } break; case PES_SYNC: // wait for pes sync n = PES_START_CODE_SIZE - pesdx->HeaderIndex; if (n > size) { n = size; } memcpy(pesdx->Header + pesdx->HeaderIndex, p, n); pesdx->HeaderIndex += n; p += n; size -= n; // have complete packet start code if (pesdx->HeaderIndex >= PES_START_CODE_SIZE) { unsigned code; // bad mpeg pes packet start code prefix 0x00001xx if (pesdx->Header[0] || pesdx->Header[1] || pesdx->Header[2] != 0x01) { Debug(3, "pesdemux: bad pes packet\n"); pesdx->State = PES_SKIP; return; } code = pesdx->Header[3]; if (code != pesdx->StartCode) { Debug(3, "pesdemux: pes start code id %#02x\n", code); // FIXME: need to save start code id? pesdx->StartCode = code; } pesdx->State = PES_HEADER; pesdx->HeaderSize = PES_HEADER_SIZE; } break; case PES_HEADER: // parse PES header n = pesdx->HeaderSize - pesdx->HeaderIndex; if (n > size) { n = size; } memcpy(pesdx->Header + pesdx->HeaderIndex, p, n); pesdx->HeaderIndex += n; p += n; size -= n; // have header upto size bits if (pesdx->HeaderIndex == PES_HEADER_SIZE) { if ((pesdx->Header[6] & 0xC0) == 0x80) { pesdx->HeaderSize += pesdx->Header[8]; } else { Error(_("pesdemux: mpeg1 pes packet unsupported\n")); pesdx->State = PES_SKIP; return; } // have complete header } else if (pesdx->HeaderIndex == pesdx->HeaderSize) { int64_t pts; int64_t dts; if ((pesdx->Header[7] & 0xC0) == 0x80) { pts = (int64_t) (data[9] & 0x0E) << 29 | data[10] << 22 | (data[11] & 0xFE) << 14 | data[12] << 7 | (data[13] & 0xFE) >> 1; Debug(4, "pesdemux: pts %#012" PRIx64 "\n", pts); pesdx->PTS = pts; } else if ((pesdx->Header[7] & 0xC0) == 0xC0) { pts = (int64_t) (data[9] & 0x0E) << 29 | data[10] << 22 | (data[11] & 0xFE) << 14 | data[12] << 7 | (data[13] & 0xFE) >> 1; pesdx->PTS = pts; dts = (int64_t) (data[14] & 0x0E) << 29 | data[15] << 22 | (data[16] & 0xFE) << 14 | data[17] << 7 | (data[18] & 0xFE) >> 1; pesdx->DTS = dts; Debug(4, "pesdemux: pts %#012" PRIx64 " %#012" PRIx64 "\n", pts, dts); } pesdx->State = PES_INIT; if (pesdx->StartCode == PES_PRIVATE_STREAM1) { // only private stream 1, has sub streams pesdx->State = PES_START; } //pesdx->HeaderIndex = 0; //pesdx->Index = 0; } break; case PES_LPCM_HEADER: // lpcm header n = pesdx->HeaderSize - pesdx->HeaderIndex; if (n > size) { n = size; } memcpy(pesdx->Header + pesdx->HeaderIndex, p, n); pesdx->HeaderIndex += n; p += n; size -= n; if (pesdx->HeaderIndex == pesdx->HeaderSize) { static int samplerates[] = { 48000, 96000, 44100, 32000 }; int samplerate; int channels; int bits_per_sample; const uint8_t *q; if (AudioCodecID != CODEC_ID_PCM_DVD) { q = pesdx->Header; Debug(3, "pesdemux: LPCM %d sr:%d bits:%d chan:%d\n", q[0], q[5] >> 4, (((q[5] >> 6) & 0x3) + 4) * 4, (q[5] & 0x7) + 1); CodecAudioClose(MyAudioDecoder); bits_per_sample = (((q[5] >> 6) & 0x3) + 4) * 4; if (bits_per_sample != 16) { Error(_ ("softhddev: LPCM %d bits per sample aren't supported\n"), bits_per_sample); // FIXME: handle unsupported formats. } samplerate = samplerates[q[5] >> 4]; channels = (q[5] & 0x7) + 1; AudioSetup(&samplerate, &channels, 0); if (samplerate != samplerates[q[5] >> 4]) { Error(_ ("softhddev: LPCM %d sample-rate is unsupported\n"), samplerates[q[5] >> 4]); // FIXME: support resample } if (channels != (q[5] & 0x7) + 1) { Error(_ ("softhddev: LPCM %d channels are unsupported\n"), (q[5] & 0x7) + 1); // FIXME: support resample } //CodecAudioOpen(MyAudioDecoder, NULL, CODEC_ID_PCM_DVD); AudioCodecID = CODEC_ID_PCM_DVD; } pesdx->State = PES_LPCM_PAYLOAD; pesdx->Index = 0; pesdx->Skip = 0; } break; case PES_LPCM_PAYLOAD: // lpcm payload // fill buffer n = pesdx->Size - pesdx->Index; if (n > size) { n = size; } memcpy(pesdx->Buffer + pesdx->Index, p, n); pesdx->Index += n; p += n; size -= n; if (pesdx->PTS != (int64_t) AV_NOPTS_VALUE) { // FIXME: needs bigger buffer AudioSetClock(pesdx->PTS); pesdx->PTS = AV_NOPTS_VALUE; } swab(pesdx->Buffer, pesdx->Buffer, pesdx->Index); AudioEnqueue(pesdx->Buffer, pesdx->Index); pesdx->Index = 0; break; } } while (size > 0); } ////////////////////////////////////////////////////////////////////////////// // Transport stream demux ////////////////////////////////////////////////////////////////////////////// /// Transport stream packet size #define TS_PACKET_SIZE 188 /// Transport stream packet sync byte #define TS_PACKET_SYNC 0x47 /// /// transport stream demuxer typedef. /// typedef struct _ts_demux_ TsDemux; /// /// transport stream demuxer structure. /// struct _ts_demux_ { int Packets; ///< packets between PCR }; static PesDemux PesDemuxAudio[1]; ///< audio demuxer /// /// Transport stream demuxer. /// /// @param tsdx transport stream demuxer /// @param data buffer of transport stream packets /// @param size size of buffer /// /// @returns number of bytes consumed from buffer. /// int TsDemuxer(TsDemux * tsdx, const uint8_t * data, int size) { const uint8_t *p; p = data; while (size >= TS_PACKET_SIZE) { int pid; int payload; if (p[0] != TS_PACKET_SYNC) { Error(_("tsdemux: transport stream out of sync\n")); // FIXME: kill all buffers return size; } ++tsdx->Packets; if (p[1] & 0x80) { // error indicator Debug(3, "tsdemux: transport error\n"); // FIXME: kill all buffers goto next_packet; } pid = (p[1] & 0x1F) << 8 | p[2]; Debug(4, "tsdemux: PID: %#04x%s%s\n", pid, p[1] & 0x40 ? " start" : "", p[3] & 0x10 ? " payload" : ""); // skip adaptation field switch (p[3] & 0x30) { // adaption field case 0x00: // reserved case 0x20: // adaptation field only default: goto next_packet; case 0x10: // only payload payload = 4; break; case 0x30: // skip adapation field payload = 5 + p[4]; // illegal length, ignore packet if (payload >= TS_PACKET_SIZE) { Debug(3, "tsdemux: illegal adaption field length\n"); goto next_packet; } break; } PesParse(PesDemuxAudio, p + payload, TS_PACKET_SIZE - payload, p[1] & 0x40); #if 0 int tmp; // check continuity tmp = p[3] & 0x0F; // continuity counter if (((tsdx->CC + 1) & 0x0F) != tmp) { Debug(3, "tsdemux: OUT OF SYNC: %d %d\n", tmp, tsdx->CC); //TS discontinuity (received 8, expected 0) for PID } tsdx->CC = tmp; #endif next_packet: p += TS_PACKET_SIZE; size -= TS_PACKET_SIZE; } return p - data; } #endif /** ** Play audio packet. ** ** @param data data of exactly one complete PES packet ** @param size size of PES packet ** @param id PES packet type */ int PlayAudio(const uint8_t * data, int size, uint8_t id) { int n; const uint8_t *p; // channel switch: SetAudioChannelDevice: SetDigitalAudioDevice: if (StreamFreezed) { // stream freezed return 0; } if (SkipAudio || !MyAudioDecoder) { // skip audio return size; } if (NewAudioStream) { // FIXME: does this clear the audio ringbuffer? CodecAudioClose(MyAudioDecoder); AudioSetBufferTime(0); AudioCodecID = CODEC_ID_NONE; AudioChannelID = -1; NewAudioStream = 0; } // Don't overrun audio buffers on replay if (AudioFreeBytes() < AUDIO_MIN_BUFFER_FREE) { return 0; } // PES header 0x00 0x00 0x01 ID // ID 0xBD 0xC0-0xCF // must be a PES start code if (size < 9 || !data || data[0] || data[1] || data[2] != 0x01) { Error(_("[softhddev] invalid PES audio packet\n")); return size; } n = data[8]; // header size if (size < 9 + n + 4) { // wrong size if (size == 9 + n) { Warning(_("[softhddev] empty audio packet\n")); } else { Error(_("[softhddev] invalid audio packet %d bytes\n"), size); } return size; } if (data[7] & 0x80 && n >= 5) { AudioAvPkt->pts = (int64_t) (data[9] & 0x0E) << 29 | data[10] << 22 | (data[11] & 0xFE) << 14 | data[12] << 7 | (data[13] & 0xFE) >> 1; //Debug(3, "audio: pts %#012" PRIx64 "\n", AudioAvPkt->pts); } if (0) { // dts is unused if (data[7] & 0x40) { AudioAvPkt->dts = (int64_t) (data[14] & 0x0E) << 29 | data[15] << 22 | (data[16] & 0xFE) << 14 | data[17] << 7 | (data[18] & 0xFE) >> 1; Debug(3, "audio: dts %#012" PRIx64 "\n", AudioAvPkt->dts); } } p = data + 9 + n; n = size - 9 - n; // skip pes header if (n + AudioAvPkt->stream_index > AudioAvPkt->size) { Fatal(_("[softhddev] audio buffer too small\n")); AudioAvPkt->stream_index = 0; } if (AudioChannelID != id) { AudioChannelID = id; AudioCodecID = CODEC_ID_NONE; } // Private stream + LPCM ID if ((id & 0xF0) == 0xA0) { if (n < 7) { Error(_("[softhddev] invalid LPCM audio packet %d bytes\n"), size); return size; } if (AudioCodecID != CODEC_ID_PCM_DVD) { static int samplerates[] = { 48000, 96000, 44100, 32000 }; int samplerate; int channels; int bits_per_sample; Debug(3, "[softhddev]%s: LPCM %d sr:%d bits:%d chan:%d\n", __FUNCTION__, id, p[5] >> 4, (((p[5] >> 6) & 0x3) + 4) * 4, (p[5] & 0x7) + 1); CodecAudioClose(MyAudioDecoder); bits_per_sample = (((p[5] >> 6) & 0x3) + 4) * 4; if (bits_per_sample != 16) { Error(_ ("[softhddev] LPCM %d bits per sample aren't supported\n"), bits_per_sample); // FIXME: handle unsupported formats. } samplerate = samplerates[p[5] >> 4]; channels = (p[5] & 0x7) + 1; AudioSetBufferTime(400); AudioSetup(&samplerate, &channels, 0); if (samplerate != samplerates[p[5] >> 4]) { Error(_("[softhddev] LPCM %d sample-rate is unsupported\n"), samplerates[p[5] >> 4]); // FIXME: support resample } if (channels != (p[5] & 0x7) + 1) { Error(_("[softhddev] LPCM %d channels are unsupported\n"), (p[5] & 0x7) + 1); // FIXME: support resample } //CodecAudioOpen(MyAudioDecoder, NULL, CODEC_ID_PCM_DVD); AudioCodecID = CODEC_ID_PCM_DVD; } if (AudioAvPkt->pts != (int64_t) AV_NOPTS_VALUE) { AudioSetClock(AudioAvPkt->pts); AudioAvPkt->pts = AV_NOPTS_VALUE; } swab(p + 7, AudioAvPkt->data, n - 7); AudioEnqueue(AudioAvPkt->data, n - 7); return size; } // DVD track header if ((id & 0xF0) == 0x80 && (p[0] & 0xF0) == 0x80) { p += 4; n -= 4; // skip track header if (AudioCodecID == CODEC_ID_NONE) { AudioSetBufferTime(400); } } // append new packet, to partial old data memcpy(AudioAvPkt->data + AudioAvPkt->stream_index, p, n); AudioAvPkt->stream_index += n; n = AudioAvPkt->stream_index; p = AudioAvPkt->data; while (n >= 5) { int r; unsigned codec_id; // 4 bytes 0xFFExxxxx Mpeg audio // 3 bytes 0x56Exxx AAC LATM audio // 5 bytes 0x0B77xxxxxx AC3 audio // PCM audio can't be found r = 0; codec_id = CODEC_ID_NONE; // keep compiler happy if (id != 0xbd && FastMpegCheck(p)) { r = MpegCheck(p, n); codec_id = CODEC_ID_MP2; } if (id != 0xbd && !r && FastLatmCheck(p)) { r = LatmCheck(p, n); codec_id = CODEC_ID_AAC_LATM; } if ((id == 0xbd || (id & 0xF0) == 0x80) && !r && FastAc3Check(p)) { r = Ac3Check(p, n); codec_id = CODEC_ID_AC3; /* faster ac3 detection at end of pes packet (no improvemnts) if (AudioCodecID == codec_id && -r - 2 == n) { r = n; } */ } if (r < 0) { // need more bytes break; } if (r > 0) { AVPacket avpkt[1]; // new codec id, close and open new if (AudioCodecID != codec_id) { CodecAudioClose(MyAudioDecoder); CodecAudioOpen(MyAudioDecoder, NULL, codec_id); AudioCodecID = codec_id; } av_init_packet(avpkt); avpkt->data = (void *)p; avpkt->size = r; avpkt->pts = AudioAvPkt->pts; avpkt->dts = AudioAvPkt->dts; CodecAudioDecode(MyAudioDecoder, avpkt); AudioAvPkt->pts = AV_NOPTS_VALUE; AudioAvPkt->dts = AV_NOPTS_VALUE; p += r; n -= r; continue; } ++p; --n; } // copy remaining bytes to start of packet if (n) { memmove(AudioAvPkt->data, p, n); } AudioAvPkt->stream_index = n; return size; } #ifndef NO_TS_AUDIO /** ** Play transport stream audio packet. ** ** @param data data of exactly one complete TS packet ** @param size size of TS packet (always TS_PACKET_SIZE) ** ** @returns number of bytes consumed; */ int PlayTsAudio(const uint8_t * data, int size) { static TsDemux tsdx[1]; if (StreamFreezed) { // stream freezed return 0; } if (SkipAudio || !MyAudioDecoder) { // skip audio return size; } // Don't overrun audio buffers on replay if (AudioFreeBytes() < AUDIO_MIN_BUFFER_FREE) { return 0; } if (NewAudioStream) { // FIXME: does this clear the audio ringbuffer? CodecAudioClose(MyAudioDecoder); // max time between audio packets 200ms + 24ms hw buffer AudioSetBufferTime(264); AudioCodecID = CODEC_ID_NONE; NewAudioStream = 0; PesReset(PesDemuxAudio); } return TsDemuxer(tsdx, data, size); } #endif /** ** Set volume of audio device. ** ** @param volume VDR volume (0 .. 255) */ void SetVolumeDevice(int volume) { AudioSetVolume((volume * 100) / 255); } ////////////////////////////////////////////////////////////////////////////// // Video ////////////////////////////////////////////////////////////////////////////// #include // portable atomic_t uint32_t VideoSwitch; ///< debug video switch ticks static volatile char NewVideoStream; ///< flag new video stream static VideoHwDecoder *MyHwDecoder; ///< video hw decoder static VideoDecoder *MyVideoDecoder; ///< video decoder static enum CodecID VideoCodecID; ///< current codec id static const char *X11DisplayName; ///< x11 display name static volatile char Usr1Signal; ///< true got usr1 signal #define VIDEO_BUFFER_SIZE (512 * 1024) ///< video PES buffer default size #define VIDEO_PACKET_MAX 192 ///< max number of video packets /// video PES packet ring buffer static AVPacket VideoPacketRb[VIDEO_PACKET_MAX]; static int VideoPacketWrite; ///< write pointer static int VideoPacketRead; ///< read pointer static atomic_t VideoPacketsFilled; ///< how many of the buffer is used static volatile char VideoClearBuffers; ///< clear video buffers static volatile char SkipVideo; ///< skip video static volatile char VideoTrickSpeed; ///< current trick speed static volatile char VideoTrickCounter; ///< current trick speed counter #ifdef DEBUG static int VideoMaxPacketSize; ///< biggest used packet buffer #endif /** ** Initialize video packet ringbuffer. */ static void VideoPacketInit(void) { int i; for (i = 0; i < VIDEO_PACKET_MAX; ++i) { AVPacket *avpkt; avpkt = &VideoPacketRb[i]; // build a clean ffmpeg av packet if (av_new_packet(avpkt, VIDEO_BUFFER_SIZE)) { Fatal(_("[softhddev] out of memory\n")); } avpkt->priv = NULL; } atomic_set(&VideoPacketsFilled, 0); VideoPacketRead = VideoPacketWrite = 0; } /** ** Cleanup video packet ringbuffer. */ static void VideoPacketExit(void) { int i; atomic_set(&VideoPacketsFilled, 0); for (i = 0; i < VIDEO_PACKET_MAX; ++i) { av_free_packet(&VideoPacketRb[i]); } } /** ** Place video data in packet ringbuffer. ** ** @param pts presentation timestamp of pes packet ** @param data data of pes packet ** @param data size of pes packet */ static void VideoEnqueue(int64_t pts, const void *data, int size) { AVPacket *avpkt; // Debug(3, "video: enqueue %d\n", size); avpkt = &VideoPacketRb[VideoPacketWrite]; if (!avpkt->stream_index) { // add pts only for first added avpkt->pts = pts; } if (avpkt->stream_index + size >= avpkt->size) { Warning(_("video: packet buffer too small for %d\n"), avpkt->stream_index + size); // new + grow reserves FF_INPUT_BUFFER_PADDING_SIZE av_grow_packet(avpkt, ((size + VIDEO_BUFFER_SIZE / 2) / (VIDEO_BUFFER_SIZE / 2)) * (VIDEO_BUFFER_SIZE / 2)); // FIXME: out of memory! #ifdef DEBUG if (avpkt->size <= avpkt->stream_index + size) { fprintf(stderr, "%d %d %d\n", avpkt->size, avpkt->stream_index, size); fflush(stderr); abort(); } #endif } memcpy(avpkt->data + avpkt->stream_index, data, size); avpkt->stream_index += size; #ifdef DEBUG if (avpkt->stream_index > VideoMaxPacketSize) { VideoMaxPacketSize = avpkt->stream_index; Debug(3, "video: max used PES packet size: %d\n", VideoMaxPacketSize); } #endif } /** ** Reset current packet. */ static void VideoResetPacket(void) { AVPacket *avpkt; avpkt = &VideoPacketRb[VideoPacketWrite]; avpkt->stream_index = 0; avpkt->pts = AV_NOPTS_VALUE; avpkt->dts = AV_NOPTS_VALUE; } /** ** Finish current packet advance to next. ** ** @param codec_id codec id of packet (MPEG/H264) */ static void VideoNextPacket(int codec_id) { AVPacket *avpkt; avpkt = &VideoPacketRb[VideoPacketWrite]; if (!avpkt->stream_index) { // ignore empty packets if (codec_id != CODEC_ID_NONE) { return; } Debug(3, "video: possible stream change loss\n"); } if (atomic_read(&VideoPacketsFilled) >= VIDEO_PACKET_MAX - 1) { // no free slot available drop last packet Error(_("video: no empty slot in packet ringbuffer\n")); avpkt->stream_index = 0; if (codec_id == CODEC_ID_NONE) { Debug(3, "video: possible stream change loss\n"); } return; } // clear area for decoder, always enough space allocated memset(avpkt->data + avpkt->stream_index, 0, FF_INPUT_BUFFER_PADDING_SIZE); avpkt->priv = (void *)(size_t) codec_id; // advance packet write VideoPacketWrite = (VideoPacketWrite + 1) % VIDEO_PACKET_MAX; atomic_inc(&VideoPacketsFilled); VideoDisplayWakeup(); // intialize next package to use VideoResetPacket(); } /** ** Fix packet for FFMpeg. ** ** Some tv-stations sends mulitple pictures in a singe PES packet. ** Current ffmpeg 0.10 and libav-0.8 has problems with this. ** Split the packet into single picture packets. */ void FixPacketForFFMpeg(VideoDecoder * MyVideoDecoder, AVPacket * avpkt) { uint8_t *p; int n; AVPacket tmp[1]; int first; p = avpkt->data; n = avpkt->size; *tmp = *avpkt; first = 1; while (n > 4) { // scan for picture header 0x00000100 if (!p[0] && !p[1] && p[2] == 0x01 && !p[3]) { if (first) { first = 0; n -= 4; p += 4; continue; } // packet has already an picture header tmp->size = p - tmp->data; CodecVideoDecode(MyVideoDecoder, tmp); // time-stamp only valid for first packet tmp->pts = AV_NOPTS_VALUE; tmp->dts = AV_NOPTS_VALUE; tmp->data = p; tmp->size = n; } --n; ++p; } CodecVideoDecode(MyVideoDecoder, tmp); } /** ** Decode from PES packet ringbuffer. */ int VideoDecode(void) { int filled; AVPacket *avpkt; int saved_size; static int last_codec_id = CODEC_ID_NONE; if (StreamFreezed) { // stream freezed return 1; } if (VideoClearBuffers) { atomic_set(&VideoPacketsFilled, 0); VideoPacketRead = VideoPacketWrite; if (MyVideoDecoder) { CodecVideoFlushBuffers(MyVideoDecoder); } VideoClearBuffers = 0; return 1; } if (VideoTrickSpeed) { if (VideoTrickCounter++ < VideoTrickSpeed * 2) { usleep(5 * 1000); return 1; } VideoTrickCounter = 0; } filled = atomic_read(&VideoPacketsFilled); if (!filled) { return -1; } #if 0 int f; // FIXME: flush buffers, if close is in the queue for (f = 0; f < filled; ++f) { avpkt = &VideoPacketRb[(VideoPacketRead + f) % VIDEO_PACKET_MAX]; if ((int)(size_t) avpkt->priv == CODEC_ID_NONE) { printf("video: close\n"); if (f) { atomic_sub(f, &VideoPacketsFilled); VideoPacketRead = (VideoPacketRead + f) % VIDEO_PACKET_MAX; } break; } } #endif avpkt = &VideoPacketRb[VideoPacketRead]; // // handle queued commands // switch ((int)(size_t) avpkt->priv) { case CODEC_ID_NONE: if (last_codec_id != CODEC_ID_NONE) { last_codec_id = CODEC_ID_NONE; CodecVideoClose(MyVideoDecoder); goto skip; } // size can be zero goto skip; case CODEC_ID_MPEG2VIDEO: if (last_codec_id != CODEC_ID_MPEG2VIDEO) { last_codec_id = CODEC_ID_MPEG2VIDEO; CodecVideoOpen(MyVideoDecoder, ConfigVdpauDecoder ? "mpegvideo_vdpau" : NULL, CODEC_ID_MPEG2VIDEO); } break; case CODEC_ID_H264: if (last_codec_id != CODEC_ID_H264) { last_codec_id = CODEC_ID_H264; CodecVideoOpen(MyVideoDecoder, ConfigVdpauDecoder ? "h264video_vdpau" : NULL, CODEC_ID_H264); } break; default: break; } // avcodec_decode_video2 needs size saved_size = avpkt->size; avpkt->size = avpkt->stream_index; avpkt->stream_index = 0; if (0) { static int done; if (done < 2) { int fildes; int who_designed_this_is____; if (done == 0) fildes = open("frame0.pes", O_WRONLY | O_TRUNC | O_CREAT, 0666); else if (done == 1) fildes = open("frame1.pes", O_WRONLY | O_TRUNC | O_CREAT, 0666); else fildes = open("frame2.pes", O_WRONLY | O_TRUNC | O_CREAT, 0666); done++; who_designed_this_is____ = write(fildes, avpkt->data, avpkt->size); close(fildes); } } if (last_codec_id == CODEC_ID_MPEG2VIDEO) { FixPacketForFFMpeg(MyVideoDecoder, avpkt); } else { CodecVideoDecode(MyVideoDecoder, avpkt); } avpkt->size = saved_size; skip: // advance packet read VideoPacketRead = (VideoPacketRead + 1) % VIDEO_PACKET_MAX; atomic_dec(&VideoPacketsFilled); return 0; } /** ** Get number of video buffers. */ int VideoGetBuffers(void) { return atomic_read(&VideoPacketsFilled); } /** ** Try video start. ** ** NOT TRUE: Could be called, when already started. */ static void StartVideo(void) { VideoInit(X11DisplayName); if (ConfigFullscreen) { // FIXME: not good looking, mapped and then resized. VideoSetFullscreen(1); } VideoOsdInit(); if (!MyVideoDecoder) { if ((MyHwDecoder = VideoNewHwDecoder())) { MyVideoDecoder = CodecVideoNewDecoder(MyHwDecoder); } VideoCodecID = CODEC_ID_NONE; } VideoPacketInit(); } /** ** Stop video. */ static void StopVideo(void) { VideoOsdExit(); VideoExit(); if (MyVideoDecoder) { // FIXME: this can crash, hw decoder released by video exit CodecVideoClose(MyVideoDecoder); CodecVideoDelDecoder(MyVideoDecoder); MyVideoDecoder = NULL; } if (MyHwDecoder) { // done by exit: VideoDelHwDecoder(MyHwDecoder); MyHwDecoder = NULL; } VideoPacketExit(); NewVideoStream = 1; } #ifdef DEBUG /** ** Validate mpeg video packet. ** ** Function to validate a mpeg packet, not needed. */ static int ValidateMpeg(const uint8_t * data, int size) { int pes_l; do { if (size < 9) { return -1; } if (data[0] || data[1] || data[2] != 0x01) { printf("%02x: %02x %02x %02x %02x %02x\n", data[-1], data[0], data[1], data[2], data[3], data[4]); return -1; } pes_l = (data[4] << 8) | data[5]; if (!pes_l) { // contains unknown length return 1; } if (6 + pes_l > size) { return -1; } data += 6 + pes_l; size -= 6 + pes_l; } while (size); return 0; } #endif /** ** Play video packet. ** ** @param data data of exactly one complete PES packet ** @param size size of PES packet ** ** @return number of bytes used, 0 if internal buffer are full. ** ** @note vdr sends incomplete packets, va-api h264 decoder only ** supports complete packets. ** We buffer here until we receive an complete PES Packet, which ** is no problem, the audio is always far behind us. ** cTsToPes::GetPes splits the packets. ** ** @todo FIXME: combine the 5 ifs at start of the function */ int PlayVideo(const uint8_t * data, int size) { const uint8_t *check; int64_t pts; int n; int z; int l; if (Usr1Signal) { // x11 server ready Usr1Signal = 0; StartVideo(); } if (!MyVideoDecoder) { // no x11 video started return size; } if (SkipVideo) { // skip video return size; } if (StreamFreezed) { // stream freezed return 0; } if (NewVideoStream) { // channel switched Debug(3, "video: new stream %d\n", GetMsTicks() - VideoSwitch); // FIXME: hack to test results if (atomic_read(&VideoPacketsFilled) >= VIDEO_PACKET_MAX - 1) { Debug(3, "video: new video stream lost\n"); NewVideoStream = 0; return 0; } VideoNextPacket(CODEC_ID_NONE); VideoCodecID = CODEC_ID_NONE; NewVideoStream = 0; } // must be a PES start code if (size < 9 || !data || data[0] || data[1] || data[2] != 0x01) { Error(_("[softhddev] invalid PES video packet\n")); return size; } n = data[8]; // header size if (size < 9 + n + 4) { // wrong size if (size == 9 + n) { Warning(_("[softhddev] empty video packet\n")); } else { Error(_("[softhddev] invalid video packet %d bytes\n"), size); } return size; } // buffer full: needed for replay if (atomic_read(&VideoPacketsFilled) >= VIDEO_PACKET_MAX - 1) { return 0; } // get pts/dts pts = AV_NOPTS_VALUE; if (data[7] & 0x80) { pts = (int64_t) (data[9] & 0x0E) << 29 | data[10] << 22 | (data[11] & 0xFE) << 14 | data[12] << 7 | (data[13] & 0xFE) >> 1; #ifdef DEBUG if (!(data[13] & 1) || !(data[11] & 1) || !(data[9] & 1)) { Error(_("[softhddev] invalid pts in video packet\n")); return size; } //Debug(3, "video: pts %#012" PRIx64 "\n", pts); if (data[13] != (((pts & 0x7F) << 1) | 1)) { abort(); } if (data[12] != ((pts >> 7) & 0xFF)) { abort(); } if (data[11] != ((((pts >> 15) & 0x7F) << 1) | 1)) { abort(); } if (data[10] != ((pts >> 22) & 0xFF)) { abort(); } if ((data[9] & 0x0F) != (((pts >> 30) << 1) | 1)) { abort(); } #endif } check = data + 9 + n; if (0) { printf("%02x: %02x %02x %02x %02x %02x %02x %02x\n", data[6], check[0], check[1], check[2], check[3], check[4], check[5], check[6]); } #if 1 // FIXME: test code for better h264 detection z = 0; l = size - 9 - n; while (!*check) { // count leading zeros if (--l < 4) { Warning(_("[softhddev] empty video packet %d bytes\n"), size); return size; } ++check; ++z; } // H264 Access Unit Delimiter 0x00 0x00 0x00 0x01 0x09 if ((data[6] & 0xC0) == 0x80 && z > 2 && check[0] == 0x01 && check[1] == 0x09) { if (VideoCodecID == CODEC_ID_H264) { VideoNextPacket(CODEC_ID_H264); } else { Debug(3, "video: h264 detected\n"); VideoCodecID = CODEC_ID_H264; } // SKIP PES header VideoEnqueue(pts, check - 3, l + 3); return size; } // PES start code 0x00 0x00 0x01 if (z > 1 && check[0] == 0x01) { if (VideoCodecID == CODEC_ID_MPEG2VIDEO) { VideoNextPacket(CODEC_ID_MPEG2VIDEO); } else { Debug(3, "video: mpeg2 detected ID %02x\n", check[3]); VideoCodecID = CODEC_ID_MPEG2VIDEO; } #ifdef DEBUG if (ValidateMpeg(data, size)) { Debug(3, "softhddev/video: invalid mpeg2 video packet\n"); } #endif // SKIP PES header VideoEnqueue(pts, check - 2, l + 2); return size; } // this happens when vdr sends incomplete packets if (VideoCodecID == CODEC_ID_NONE) { Debug(3, "video: not detected\n"); return size; } // SKIP PES header VideoEnqueue(pts, data + 9 + n, size - 9 - n); // incomplete packets produce artefacts after channel switch // packet < 65526 is the last split packet, detect it here for // better latency if (size < 65526 && VideoCodecID == CODEC_ID_MPEG2VIDEO) { // mpeg codec supports incomplete packets // waiting for a full complete packages, increases needed delays VideoNextPacket(CODEC_ID_MPEG2VIDEO); } return size; #else // FIXME: no valid mpeg2/h264 detection yet // FIXME: better skip all zero's >3 && 0x01 0x09 h264, >2 && 0x01 -> mpeg2 // PES_VIDEO_STREAM 0xE0 or PES start code //(data[6] & 0xC0) != 0x80 || if ((!check[0] && !check[1] && check[2] == 0x1)) { if (VideoCodecID == CODEC_ID_MPEG2VIDEO) { VideoNextPacket(CODEC_ID_MPEG2VIDEO); } else { Debug(3, "video: mpeg2 detected ID %02x\n", check[3]); VideoCodecID = CODEC_ID_MPEG2VIDEO; } #ifdef DEBUG if (ValidateMpeg(data, size)) { Debug(3, "softhddev/video: invalid mpeg2 video packet\n"); } #endif // Access Unit Delimiter } else if ((data[6] & 0xC0) == 0x80 && !check[0] && !check[1] && !check[2] && check[3] == 0x1 && check[4] == 0x09) { if (VideoCodecID == CODEC_ID_H264) { VideoNextPacket(CODEC_ID_H264); } else { Debug(3, "video: h264 detected\n"); VideoCodecID = CODEC_ID_H264; } // Access Unit Delimiter (BBC-HD) // FIXME: the 4 offset are try & error selected } else if ((data[6] & 0xC0) == 0x80 && !check[4 + 0] && !check[4 + 1] && !check[4 + 2] && check[4 + 3] == 0x1 && check[4 + 4] == 0x09) { if (VideoCodecID == CODEC_ID_H264) { VideoNextPacket(CODEC_ID_H264); } else { Debug(3, "video: h264 detected\n"); VideoCodecID = CODEC_ID_H264; } } else { // this happens when vdr sends incomplete packets if (VideoCodecID == CODEC_ID_NONE) { Debug(3, "video: not detected\n"); return size; } // incomplete packets produce artefacts after channel switch // packet < 65526 is the last split packet, detect it here for // better latency if (size < 65526 && VideoCodecID == CODEC_ID_MPEG2VIDEO) { // mpeg codec supports incomplete packets // waiting for a full complete packages, increases needed delays VideoEnqueue(pts, check, size - 9 - n); VideoNextPacket(CODEC_ID_MPEG2VIDEO); return size; } } // SKIP PES header VideoEnqueue(pts, check, size - 9 - n); return size; #endif } /// call VDR support function extern uint8_t *CreateJpeg(uint8_t *, int *, int, int, int); #if defined(USE_JPEG) && JPEG_LIB_VERSION >= 80 /** ** Create a jpeg image in memory. ** ** @param image raw RGB image ** @param raw_size size of raw image ** @param size[out] size of jpeg image ** @param quality jpeg quality ** @param width number of horizontal pixels in image ** @param height number of vertical pixels in image ** ** @returns allocated jpeg image. */ uint8_t *CreateJpeg(uint8_t * image, int raw_size, int *size, int quality, int width, int height) { struct jpeg_compress_struct cinfo; struct jpeg_error_mgr jerr; JSAMPROW row_ptr[1]; int row_stride; uint8_t *outbuf; long unsigned int outsize; outbuf = NULL; outsize = 0; cinfo.err = jpeg_std_error(&jerr); jpeg_create_compress(&cinfo); jpeg_mem_dest(&cinfo, &outbuf, &outsize); cinfo.image_width = width; cinfo.image_height = height; cinfo.input_components = raw_size / height / width; cinfo.in_color_space = JCS_RGB; jpeg_set_defaults(&cinfo); jpeg_set_quality(&cinfo, quality, TRUE); jpeg_start_compress(&cinfo, TRUE); row_stride = width * 3; while (cinfo.next_scanline < cinfo.image_height) { row_ptr[0] = &image[cinfo.next_scanline * row_stride]; jpeg_write_scanlines(&cinfo, row_ptr, 1); } jpeg_finish_compress(&cinfo); jpeg_destroy_compress(&cinfo); *size = outsize; return outbuf; } #endif /** ** Grabs the currently visible screen image. ** ** @param size size of the returned data ** @param jpeg flag true, create JPEG data ** @param quality JPEG quality ** @param width number of horizontal pixels in the frame ** @param height number of vertical pixels in the frame */ uint8_t *GrabImage(int *size, int jpeg, int quality, int width, int height) { if (jpeg) { uint8_t *image; int raw_size; raw_size = 0; image = VideoGrab(&raw_size, &width, &height, 0); if (image) { // can fail, suspended, ... uint8_t *jpg_image; jpg_image = CreateJpeg(image, size, quality, width, height); free(image); return jpg_image; } return NULL; } if (width != -1 && height != -1) { Warning(_("softhddev: scaling unsupported\n")); } return VideoGrab(size, &width, &height, 1); } ////////////////////////////////////////////////////////////////////////////// /** ** Set play mode, called on channel switch. ** ** @param play_mode play mode (none, video+audio, audio-only, ...) */ int SetPlayMode(int play_mode) { VideoDisplayWakeup(); if (MyVideoDecoder) { // tell video parser we have new stream if (VideoCodecID != CODEC_ID_NONE) { NewVideoStream = 1; VideoSwitch = GetMsTicks(); } } if (MyAudioDecoder) { // tell audio parser we have new stream if (AudioCodecID != CODEC_ID_NONE) { NewAudioStream = 1; } } if (play_mode == 2 || play_mode == 3) { Debug(3, "softhddev: FIXME: audio only, silence video errors\n"); } Play(); return 1; } /** ** Set trick play speed. ** ** Every single frame shall then be displayed the given number of ** times. ** ** @param speed trick speed */ void TrickSpeed(int speed) { VideoTrickSpeed = speed; VideoTrickCounter = 0; StreamFreezed = 0; } /** ** Clears all video and audio data from the device. */ void Clear(void) { int i; VideoResetPacket(); // terminate work VideoClearBuffers = 1; AudioFlushBuffers(); //NewAudioStream = 1; // FIXME: audio avcodec_flush_buffers, video is done by VideoClearBuffers for (i = 0; VideoClearBuffers && i < 20; ++i) { usleep(1 * 1000); } } /** ** Sets the device into play mode. */ void Play(void) { VideoTrickSpeed = 0; VideoTrickCounter = 0; StreamFreezed = 0; SkipAudio = 0; AudioPlay(); } /** ** Sets the device into "freeze frame" mode. */ void Freeze(void) { StreamFreezed = 1; AudioPause(); } /** ** Turns off audio while replaying. */ void Mute(void) { SkipAudio = 1; AudioFlushBuffers(); //AudioSetVolume(0); } /** ** Display the given I-frame as a still picture. ** ** @param data pes frame data ** @param size number of bytes in frame */ void StillPicture(const uint8_t * data, int size) { int i; static uint8_t seq_end_mpeg[] = { 0x00, 0x00, 0x01, 0xB7 }; static uint8_t seq_end_h264[] = { 0x00, 0x00, 0x00, 0x01, 0x10 }; // must be a PES start code if (size < 9 || !data || data[0] || data[1] || data[2] != 0x01) { Error(_("[softhddev] invalid still video packet\n")); return; } if (VideoCodecID == CODEC_ID_NONE) { // FIXME: should detect codec, see PlayVideo Error(_("[softhddev] no codec known for still picture\n")); } //Clear(); // flush video buffers // +1 future for deinterlace for (i = -1; i < (VideoCodecID == CODEC_ID_MPEG2VIDEO ? 3 : 17); ++i) { //if ( 1 ) { const uint8_t *split; int n; if ((data[3] & 0xF0) == 0xE0) { // PES packet split = data; n = size; // split the I-frame into single pes packets do { int len; len = (split[4] << 8) + split[5]; if (!len || len + 6 > n) { PlayVideo(split, n); // feed remaining bytes break; } PlayVideo(split, len + 6); // feed it split += 6 + len; n -= 6 + len; } while (n > 6); VideoNextPacket(VideoCodecID); // terminate last packet if (VideoCodecID == CODEC_ID_H264) { VideoEnqueue(AV_NOPTS_VALUE, seq_end_h264, sizeof(seq_end_h264)); } else { VideoEnqueue(AV_NOPTS_VALUE, seq_end_mpeg, sizeof(seq_end_mpeg)); } VideoNextPacket(VideoCodecID); // terminate last packet } else { // ES packet if (VideoCodecID != CODEC_ID_MPEG2VIDEO) { VideoNextPacket(CODEC_ID_NONE); // close last stream VideoCodecID = CODEC_ID_MPEG2VIDEO; } VideoEnqueue(AV_NOPTS_VALUE, data, size); VideoEnqueue(AV_NOPTS_VALUE, seq_end_mpeg, sizeof(seq_end_mpeg)); VideoNextPacket(VideoCodecID); // terminate last packet } } } /** ** Poll if device is ready. Called by replay. ** ** @param timeout timeout to become ready in ms */ int Poll(int timeout) { // buffers are too full if (atomic_read(&VideoPacketsFilled) >= VIDEO_PACKET_MAX * 2 / 3 || AudioFreeBytes() < AUDIO_MIN_BUFFER_FREE * 2) { if (timeout) { // let display thread work usleep(timeout * 1000); } return atomic_read(&VideoPacketsFilled) < VIDEO_PACKET_MAX * 2 / 3 && AudioFreeBytes() > AUDIO_MIN_BUFFER_FREE; } return 1; } /** ** Flush the device output buffers. ** ** @param timeout timeout to flush in ms */ int Flush(int timeout) { if (atomic_read(&VideoPacketsFilled)) { if (timeout) { // let display thread work usleep(timeout * 1000); } return !atomic_read(&VideoPacketsFilled); } return 1; } ////////////////////////////////////////////////////////////////////////////// // OSD ////////////////////////////////////////////////////////////////////////////// /** ** Get OSD size and aspect. */ void GetOsdSize(int *width, int *height, double *aspect) { #ifdef DEBUG static int done_width; static int done_height; #endif VideoGetOsdSize(width, height); *aspect = 16.0 / 9.0 / (double)*width * (double)*height; #ifdef DEBUG if (done_width != *width || done_height != *height) { Debug(3, "[softhddev]%s: %dx%d %g\n", __FUNCTION__, *width, *height, *aspect); done_width = *width; done_height = *height; } #endif } /** ** Close OSD. */ void OsdClose(void) { VideoOsdClear(); } /** ** Draw an OSD pixmap. */ void OsdDrawARGB(int x, int y, int height, int width, const uint8_t * argb) { VideoOsdDrawARGB(x, y, height, width, argb); } ////////////////////////////////////////////////////////////////////////////// /** ** Return command line help string. */ const char *CommandLineHelp(void) { return " -a device\taudio device (fe. alsa: hw:0,0 oss: /dev/dsp)\n" " -p device\taudio device for pass-through (hw:0,1 or /dev/dsp1)\n" " -c channel\taudio mixer channel name (fe. PCM)\n" " -d display\tdisplay of x11 server (fe. :0.0)\n" " -f\t\tstart with fullscreen window (only with window manager)\n" " -g geometry\tx11 window geometry wxh+x+y\n" " -s\t\tstart in suspended mode\n" " -x\t\tstart x11 server\n" " -w workaround\tenable/disable workarounds\n" "\tno-hw-decoder\t\tdisable hw decoder, use software decoder only\n" "\tno-mpeg-hw-decoder\tdisable hw decoder for mpeg only\n" "\talsa-driver-broken\tdisable broken alsa driver message\n" "\tignore-repeat-pict\tdisable repeat pict message\n"; } /** ** Process the command line arguments. ** ** @param argc number of arguments ** @param argv arguments vector */ int ProcessArgs(int argc, char *const argv[]) { // // Parse arguments. // for (;;) { switch (getopt(argc, argv, "-a:c:d:fg:p:sw:x")) { case 'a': // audio device for pcm AudioSetDevice(optarg); continue; case 'c': // channel of audio mixer AudioSetChannel(optarg); continue; case 'p': // pass-through audio device AudioSetDeviceAC3(optarg); continue; case 'd': // x11 display name X11DisplayName = optarg; continue; case 'f': // fullscreen mode ConfigFullscreen = 1; continue; case 'g': // geometry if (VideoSetGeometry(optarg) < 0) { fprintf(stderr, _ ("Bad formated geometry please use: [=][{xX}][{+-}{+-}]\n")); return 0; } continue; case 'x': // x11 server ConfigStartX11Server = 1; continue; case 's': // start in suspend mode ConfigStartSuspended = 1; continue; case 'w': // workarounds if (!strcasecmp("no-hw-decoder", optarg)) { } else if (!strcasecmp("no-mpeg-hw-decoder", optarg)) { } else if (!strcasecmp("alsa-driver-broken", optarg)) { AudioAlsaDriverBroken = 1; } else if (!strcasecmp("ignore-repeat-pict", optarg)) { VideoIgnoreRepeatPict = 1; } else { fprintf(stderr, _("Workaround '%s' unsupported\n"), optarg); return 0; } continue; case EOF: break; case '-': fprintf(stderr, _("We need no long options\n")); return 0; case ':': fprintf(stderr, _("Missing argument for option '%c'\n"), optopt); return 0; default: fprintf(stderr, _("Unkown option '%c'\n"), optopt); return 0; } break; } while (optind < argc) { fprintf(stderr, _("Unhandled argument '%s'\n"), argv[optind++]); } return 1; } ////////////////////////////////////////////////////////////////////////////// // Init/Exit ////////////////////////////////////////////////////////////////////////////// #include #include #define XSERVER_MAX_ARGS 512 ///< how many arguments support static const char *X11Server = "/usr/bin/X"; ///< default x11 server static const char *X11ServerArguments; ///< default command arguments static pid_t X11ServerPid; ///< x11 server pid /** ** USR1 signal handler. ** ** @param sig signal number */ static void Usr1Handler(int __attribute__ ((unused)) sig) { ++Usr1Signal; Debug(3, "x-setup: got signal usr1\n"); } /** ** Start the X server */ static void StartXServer(void) { struct sigaction usr1; pid_t pid; const char *sval; const char *args[XSERVER_MAX_ARGS]; int argn; char *buf; // X server if (X11Server) { args[0] = X11Server; } else { Error(_("x-setup: No X server configured!\n")); return; } argn = 1; if (X11DisplayName) { // append display name args[argn++] = X11DisplayName; } // split X server arguments string into words if ((sval = X11ServerArguments)) { char *s; s = buf = strdupa(sval); while ((sval = strsep(&s, " \t"))) { args[argn++] = sval; if (argn == XSERVER_MAX_ARGS - 1) { // argument overflow Error(_("x-setup: too many arguments for xserver\n")); // argn = 1; break; } } } // FIXME: auth // FIXME: append VTxx args[argn] = NULL; // arm the signal memset(&usr1, 0, sizeof(struct sigaction)); usr1.sa_handler = Usr1Handler; sigaction(SIGUSR1, &usr1, NULL); Debug(3, "x-setup: Starting X server '%s' '%s'\n", args[0], X11ServerArguments); // fork if ((pid = vfork())) { // parent X11ServerPid = pid; Debug(3, "x-setup: Started x-server pid=%d\n", X11ServerPid); return; } // child signal(SIGUSR1, SIG_IGN); // ignore to force answer // start the X server execvp(args[0], (char *const *)args); Error(_("x-setup: Failed to start X server '%s'\n"), args[0]); } /** ** Exit + cleanup. */ void SoftHdDeviceExit(void) { // lets hope that vdr does a good thread cleanup AudioExit(); if (MyAudioDecoder) { CodecAudioClose(MyAudioDecoder); CodecAudioDelDecoder(MyAudioDecoder); MyAudioDecoder = NULL; } NewAudioStream = 0; av_free_packet(AudioAvPkt); StopVideo(); CodecExit(); //VideoPacketExit(); if (ConfigStartX11Server) { Debug(3, "x-setup: Stop x11 server\n"); if (X11ServerPid) { int waittime; int timeout; pid_t wpid; int status; kill(X11ServerPid, SIGTERM); waittime = 0; timeout = 500; // 0.5s // wait for x11 finishing, with timeout do { wpid = waitpid(X11ServerPid, &status, WNOHANG); if (wpid) { break; } if (waittime++ < timeout) { usleep(1 * 1000); continue; } kill(X11ServerPid, SIGKILL); } while (waittime < timeout); if (wpid && WIFEXITED(status)) { Debug(3, "x-setup: x11 server exited (%d)\n", WEXITSTATUS(status)); } if (wpid && WIFSIGNALED(status)) { Debug(3, "x-setup: x11 server killed (%d)\n", WTERMSIG(status)); } } } pthread_mutex_destroy(&SuspendLockMutex); } /** ** Prepare plugin. */ int Start(void) { if (ConfigStartX11Server) { StartXServer(); } CodecInit(); if (!ConfigStartSuspended) { // FIXME: AudioInit for HDMI after X11 startup // StartAudio(); AudioInit(); av_new_packet(AudioAvPkt, AUDIO_BUFFER_SIZE); MyAudioDecoder = CodecAudioNewDecoder(); AudioCodecID = CODEC_ID_NONE; AudioChannelID = -1; if (!ConfigStartX11Server) { StartVideo(); } } else { SkipVideo = 1; SkipAudio = 1; } pthread_mutex_init(&SuspendLockMutex, NULL); #ifndef NO_TS_AUDIO PesInit(PesDemuxAudio); #endif Info(_("[softhddev] ready%s\n"), ConfigStartSuspended ? " suspended" : ""); return !ConfigStartSuspended; } /** ** Stop plugin. ** ** @note stop everything, but don't cleanup, module is still called. */ void Stop(void) { #ifdef DEBUG Debug(3, "video: max used PES packet size: %d\n", VideoMaxPacketSize); #endif } /** ** Main thread hook, periodic called from main thread. */ void MainThreadHook(void) { } ////////////////////////////////////////////////////////////////////////////// // Suspend/Resume ////////////////////////////////////////////////////////////////////////////// /** ** Suspend plugin. ** ** @param video suspend closes video ** @param audio suspend closes audio ** @param dox11 suspend closes x11 server */ void Suspend(int video, int audio, int dox11) { pthread_mutex_lock(&SuspendLockMutex); if (SkipVideo && SkipAudio) { // already suspended pthread_mutex_unlock(&SuspendLockMutex); return; } Debug(3, "[softhddev]%s:\n", __FUNCTION__); SkipVideo = 1; SkipAudio = 1; pthread_mutex_unlock(&SuspendLockMutex); if (audio || video) { pthread_mutex_lock(&SuspendLockMutex); if (audio) { AudioExit(); if (MyAudioDecoder) { CodecAudioClose(MyAudioDecoder); CodecAudioDelDecoder(MyAudioDecoder); MyAudioDecoder = NULL; } NewAudioStream = 0; av_free_packet(AudioAvPkt); } if (video) { StopVideo(); } pthread_mutex_unlock(&SuspendLockMutex); } if (dox11) { // FIXME: stop x11, if started } } /** ** Resume plugin. */ void Resume(void) { if (!SkipVideo && !SkipAudio) { // we are not suspended return; } Debug(3, "[softhddev]%s:\n", __FUNCTION__); pthread_mutex_lock(&SuspendLockMutex); // FIXME: start x11 if (!MyHwDecoder) { // video not running StartVideo(); } if (!MyAudioDecoder) { // audio not running // StartAudio(); AudioInit(); av_new_packet(AudioAvPkt, AUDIO_BUFFER_SIZE); MyAudioDecoder = CodecAudioNewDecoder(); AudioCodecID = CODEC_ID_NONE; AudioChannelID = -1; } SkipVideo = 0; SkipAudio = 0; pthread_mutex_unlock(&SuspendLockMutex); }