mirror of
https://github.com/tuxbox-fork-migrations/recycled-ni-libstb-hal.git
synced 2025-08-26 23:12:44 +02:00
move libeplayer3-sh4 code to libeplayer3-sh4 directory; ...
rename library to libeplayer3_sh4.la
Origin commit data
------------------
Branch: master
Commit: e97bae99fc
Author: vanhofen <vanhofen@gmx.de>
Date: 2018-12-23 (Sun, 23 Dec 2018)
Origin message was:
------------------
- move libeplayer3-sh4 code to libeplayer3-sh4 directory; ...
rename library to libeplayer3_sh4.la
------------------
This commit was generated by Migit
This commit is contained in:
vanhofen
188
libeplayer3-sh4/writer/vc1.cpp
Normal file
188
libeplayer3-sh4/writer/vc1.cpp
Normal file
@@ -0,0 +1,188 @@
|
||||
/*
|
||||
* linuxdvb output/writer handling
|
||||
*
|
||||
* Copyright (C) 2010 konfetti (based on code from libeplayer2)
|
||||
* Copyright (C) 2014 martii (based on code from libeplayer3)
|
||||
*
|
||||
* 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
|
||||
* of the License, 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 this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <sys/uio.h>
|
||||
#include <errno.h>
|
||||
|
||||
#include <algorithm>
|
||||
|
||||
#include "misc.h"
|
||||
#include "pes.h"
|
||||
#include "writer.h"
|
||||
|
||||
#define WMV3_PRIVATE_DATA_LENGTH 4
|
||||
|
||||
#define METADATA_STRUCT_A_START 12
|
||||
#define METADATA_STRUCT_B_START 24
|
||||
#define METADATA_STRUCT_B_FRAMERATE_START 32
|
||||
#define METADATA_STRUCT_C_START 8
|
||||
|
||||
|
||||
#define VC1_SEQUENCE_LAYER_METADATA_START_CODE 0x80
|
||||
#define VC1_FRAME_START_CODE 0x0d
|
||||
|
||||
class WriterVC1 : public Writer
|
||||
{
|
||||
private:
|
||||
bool initialHeader;
|
||||
uint8_t FrameHeaderSeen;
|
||||
AVStream *stream;
|
||||
public:
|
||||
bool Write(AVPacket *packet, int64_t pts);
|
||||
void Init(int _fd, AVStream *_stream, Player *_player);
|
||||
WriterVC1();
|
||||
};
|
||||
|
||||
void WriterVC1::Init(int _fd, AVStream *_stream, Player *_player)
|
||||
{
|
||||
fd = _fd;
|
||||
stream = _stream;
|
||||
player = _player;
|
||||
initialHeader = true;
|
||||
}
|
||||
|
||||
bool WriterVC1::Write(AVPacket *packet, int64_t pts)
|
||||
{
|
||||
if (!packet || !packet->data)
|
||||
return false;
|
||||
|
||||
if (initialHeader) {
|
||||
initialHeader = false;
|
||||
FrameHeaderSeen = false;
|
||||
|
||||
const uint8_t SequenceLayerStartCode[] =
|
||||
{ 0x00, 0x00, 0x01, VC1_SEQUENCE_LAYER_METADATA_START_CODE };
|
||||
|
||||
|
||||
const uint8_t Metadata[] = {
|
||||
0x00, 0x00, 0x00, 0xc5,
|
||||
0x04, 0x00, 0x00, 0x00,
|
||||
0xc0, 0x00, 0x00, 0x00, /* Struct C set for for advanced profile */
|
||||
0x00, 0x00, 0x00, 0x00, /* Struct A */
|
||||
0x00, 0x00, 0x00, 0x00,
|
||||
0x0c, 0x00, 0x00, 0x00,
|
||||
0x60, 0x00, 0x00, 0x00, /* Struct B */
|
||||
0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00
|
||||
};
|
||||
|
||||
uint8_t PesHeader[PES_MAX_HEADER_SIZE];
|
||||
uint8_t PesPayload[128];
|
||||
uint8_t *PesPtr;
|
||||
unsigned int usecPerFrame = av_rescale(AV_TIME_BASE, stream->r_frame_rate.den, stream->r_frame_rate.num);
|
||||
struct iovec iov[2];
|
||||
|
||||
|
||||
memset(PesPayload, 0, sizeof(PesPayload));
|
||||
|
||||
PesPtr = PesPayload;
|
||||
|
||||
memcpy(PesPtr, SequenceLayerStartCode, sizeof(SequenceLayerStartCode));
|
||||
PesPtr += sizeof(SequenceLayerStartCode);
|
||||
|
||||
memcpy(PesPtr, Metadata, sizeof(Metadata));
|
||||
PesPtr += METADATA_STRUCT_C_START;
|
||||
PesPtr += WMV3_PRIVATE_DATA_LENGTH;
|
||||
|
||||
/* Metadata Header Struct A */
|
||||
*PesPtr++ = (stream->codec->height >> 0) & 0xff;
|
||||
*PesPtr++ = (stream->codec->height >> 8) & 0xff;
|
||||
*PesPtr++ = (stream->codec->height >> 16) & 0xff;
|
||||
*PesPtr++ = stream->codec->height >> 24;
|
||||
*PesPtr++ = (stream->codec->width >> 0) & 0xff;
|
||||
*PesPtr++ = (stream->codec->width >> 8) & 0xff;
|
||||
*PesPtr++ = (stream->codec->width >> 16) & 0xff;
|
||||
*PesPtr++ = stream->codec->width >> 24;
|
||||
|
||||
PesPtr += 12; /* Skip flag word and Struct B first 8 bytes */
|
||||
|
||||
*PesPtr++ = (usecPerFrame >> 0) & 0xff;
|
||||
*PesPtr++ = (usecPerFrame >> 8) & 0xff;
|
||||
*PesPtr++ = (usecPerFrame >> 16) & 0xff;
|
||||
*PesPtr++ = usecPerFrame >> 24;
|
||||
|
||||
iov[0].iov_base = PesHeader;
|
||||
iov[1].iov_base = PesPayload;
|
||||
iov[1].iov_len = PesPtr - PesPayload;
|
||||
iov[0].iov_len = InsertPesHeader(PesHeader, iov[1].iov_len, VC1_VIDEO_PES_START_CODE, INVALID_PTS_VALUE, 0);
|
||||
if (writev(fd, iov, 2) < 0)
|
||||
return false;
|
||||
|
||||
/* For VC1 the codec private data is a standard vc1 sequence header so we just copy it to the output */
|
||||
iov[0].iov_base = PesHeader;
|
||||
iov[1].iov_base = stream->codec->extradata;
|
||||
iov[1].iov_len = stream->codec->extradata_size;
|
||||
iov[0].iov_len = InsertPesHeader(PesHeader, iov[1].iov_len, VC1_VIDEO_PES_START_CODE, INVALID_PTS_VALUE, 0);
|
||||
if (writev(fd, iov, 2) < 0)
|
||||
return false;
|
||||
|
||||
initialHeader = false;
|
||||
}
|
||||
|
||||
if (packet->size > 0) {
|
||||
int Position = 0;
|
||||
bool insertSampleHeader = true;
|
||||
|
||||
while (Position < packet->size) {
|
||||
int PacketLength = std::min(packet->size - Position, MAX_PES_PACKET_SIZE);
|
||||
uint8_t PesHeader[PES_MAX_HEADER_SIZE];
|
||||
int HeaderLength = InsertPesHeader(PesHeader, PacketLength, VC1_VIDEO_PES_START_CODE, pts, 0);
|
||||
|
||||
if (insertSampleHeader) {
|
||||
const uint8_t Vc1FrameStartCode[] = { 0, 0, 1, VC1_FRAME_START_CODE };
|
||||
|
||||
if (!FrameHeaderSeen && (packet->size > 3) && (memcmp(packet->data, Vc1FrameStartCode, 4) == 0))
|
||||
FrameHeaderSeen = true;
|
||||
if (!FrameHeaderSeen) {
|
||||
memcpy(&PesHeader[HeaderLength], Vc1FrameStartCode, sizeof(Vc1FrameStartCode));
|
||||
HeaderLength += sizeof(Vc1FrameStartCode);
|
||||
}
|
||||
insertSampleHeader = false;
|
||||
}
|
||||
|
||||
struct iovec iov[2];
|
||||
iov[0].iov_base = PesHeader;
|
||||
iov[0].iov_len = HeaderLength;
|
||||
iov[1].iov_base = packet->data + Position;
|
||||
iov[1].iov_len = PacketLength;
|
||||
|
||||
ssize_t l = writev(fd, iov, 2);
|
||||
if (l < 0)
|
||||
return false;
|
||||
|
||||
Position += PacketLength;
|
||||
pts = INVALID_PTS_VALUE;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
WriterVC1::WriterVC1()
|
||||
{
|
||||
Register(this, AV_CODEC_ID_VC1, VIDEO_ENCODING_VC1);
|
||||
}
|
||||
|
||||
static WriterVC1 writer_vc1 __attribute__ ((init_priority (300)));
|
||||
Reference in New Issue
Block a user