libeplayer3: rename files

libeplayer3/writer/wmv.cpp

@@ -0,0 +1,169 @@
+/*
+ * linuxdvb output/writer handling.
+ *
+ * konfetti 2010 based on linuxdvb.c code from libeplayer2
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/uio.h>
+#include <errno.h>
+
+#include "misc.h"
+#include "pes.h"
+#include "writer.h"
+
+#include <algorithm>
+
+#define WMV3_PRIVATE_DATA_LENGTH        4
+
+static const unsigned char Metadata[] = {
+    0x00, 0x00, 0x00, 0xc5,
+    0x04, 0x00, 0x00, 0x00,
+#define METADATA_STRUCT_C_START			8
+    0xc0, 0x00, 0x00, 0x00,	/* Struct C set for for advanced profile */
+#define METADATA_STRUCT_A_START			12
+    0x00, 0x00, 0x00, 0x00,	/* Struct A */
+    0x00, 0x00, 0x00, 0x00,
+    0x0c, 0x00, 0x00, 0x00,
+#define METADATA_STRUCT_B_START			24
+    0x60, 0x00, 0x00, 0x00,	/* Struct B */
+    0x00, 0x00, 0x00, 0x00,
+#define METADATA_STRUCT_B_FRAMERATE_START	32
+    0x00, 0x00, 0x00, 0x00
+};
+
+class WriterWMV : public Writer
+{
+	private:
+		bool initialHeader;
+	public:
+		bool Write(int fd, AVFormatContext *avfc, AVStream *stream, AVPacket *packet, int64_t &pts);
+		void Init();
+		WriterWMV();
+};
+
+void WriterWMV::Init()
+{
+    initialHeader = 1;
+}
+
+bool WriterWMV::Write(int fd, AVFormatContext * /* avfc */, AVStream *stream, AVPacket *packet, int64_t &pts)
+{
+	if (fd < 0 || !packet)
+		return false;
+
+    if (initialHeader) {
+#define PES_MIN_HEADER_SIZE 9
+	unsigned char PesPacket[PES_MIN_HEADER_SIZE + 128];
+	unsigned char *PesPtr;
+	unsigned int MetadataLength;
+	unsigned int usecPerFrame = ((10000000.0 / av_q2d(stream->r_frame_rate)));
+
+	PesPtr = &PesPacket[PES_MIN_HEADER_SIZE];
+
+	memcpy(PesPtr, Metadata, sizeof(Metadata));
+	PesPtr += METADATA_STRUCT_C_START;
+
+	unsigned char privateData[WMV3_PRIVATE_DATA_LENGTH] = { 0 };
+	memcpy(privateData, stream->codec->extradata, stream->codec->extradata_size > WMV3_PRIVATE_DATA_LENGTH ? WMV3_PRIVATE_DATA_LENGTH : stream->codec->extradata_size);
+
+	memcpy(PesPtr, privateData, WMV3_PRIVATE_DATA_LENGTH);
+	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;
+
+	MetadataLength = PesPtr - &PesPacket[PES_MIN_HEADER_SIZE];
+
+	int HeaderLength = InsertPesHeader(PesPacket, MetadataLength, VC1_VIDEO_PES_START_CODE, INVALID_PTS_VALUE, 0);
+
+	if (write(fd, PesPacket, HeaderLength + MetadataLength) < 0)
+		return false;
+
+	initialHeader = false;
+    }
+
+    if (packet->size > 0 && packet->data) {
+	int Position = 0;
+	bool insertSampleHeader = true;
+
+	uint64_t _pts = pts;
+
+	while (Position < packet->size) {
+
+	    int PacketLength = std::min(packet->size - Position, MAX_PES_PACKET_SIZE);
+
+	    unsigned char PesHeader[PES_MAX_HEADER_SIZE] = { 0 };
+	    int HeaderLength = InsertPesHeader(PesHeader, PacketLength, VC1_VIDEO_PES_START_CODE, _pts, 0);
+
+	    if (insertSampleHeader) {
+		unsigned int PesLength;
+		unsigned int PrivateHeaderLength;
+
+		PrivateHeaderLength = InsertVideoPrivateDataHeader(&PesHeader[HeaderLength], packet->size);
+		/* Update PesLength */
+		PesLength = PesHeader[PES_LENGTH_BYTE_0] + (PesHeader[PES_LENGTH_BYTE_1] << 8) + PrivateHeaderLength;
+		PesHeader[PES_LENGTH_BYTE_0] = PesLength & 0xff;
+		PesHeader[PES_LENGTH_BYTE_1] = (PesLength >> 8) & 0xff;
+		PesHeader[PES_HEADER_DATA_LENGTH_BYTE] += PrivateHeaderLength;
+		PesHeader[PES_FLAGS_BYTE] |= PES_EXTENSION_DATA_PRESENT;
+
+		HeaderLength += PrivateHeaderLength;
+		insertSampleHeader = false;
+	    }
+
+	    uint8_t PacketStart[packet->size + HeaderLength];
+	    memcpy(PacketStart, PesHeader, HeaderLength);
+	    memcpy(PacketStart + HeaderLength, packet->data + Position, PacketLength);
+	    if (write(fd, PacketStart, PacketLength + HeaderLength) < 0)
+		return false;
+
+	    Position += PacketLength;
+	    _pts = INVALID_PTS_VALUE;
+	}
+    }
+
+    return true;
+}
+
+WriterWMV::WriterWMV()
+{
+	Register(this, AV_CODEC_ID_WMV1, VIDEO_ENCODING_WMV);
+	Register(this, AV_CODEC_ID_WMV2, VIDEO_ENCODING_WMV);
+	Register(this, AV_CODEC_ID_WMV3, VIDEO_ENCODING_WMV);
+}
+
+static WriterWMV writer_wmv __attribute__ ((init_priority (300)));