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Code Issues Releases Wiki Activity

use unique_ptr instead

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This commit is contained in:
Evil Eye 2021-05-13 14:02:36 +02:00
parent 3b7cef9e88
commit ed118537a8
1 changed files with 16 additions and 35 deletions
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51
extern/osg-ffmpeg-videoplayer/videostate.cpp vendored
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@ -38,36 +38,11 @@ namespace
const int MAX_AUDIOQ_SIZE = (5 * 16 * 1024);
const int MAX_VIDEOQ_SIZE = (5 * 256 * 1024);
class PacketGuard
struct AVPacketUnref
{
AVPacket mPacket;
bool mReleased;
public:
PacketGuard() : mReleased(false)
void operator()(AVPacket* packet) const
{
av_init_packet(&mPacket);
}
AVPacket* operator->()
{
return &mPacket;
}
AVPacket* operator*()
{
return &mPacket;
}
AVPacket* release()
{
mReleased = true;
return &mPacket;
}
~PacketGuard()
{
if(!mReleased)
av_packet_unref(&mPacket);
av_packet_unref(packet);
}
};
}
@ -438,10 +413,12 @@ public:
void run()
{
VideoState* self = mVideoState;
PacketGuard packet;
AVPacket packetData;
av_init_packet(&packetData);
std::unique_ptr<AVPacket, AVPacketUnref> packet(&packetData, AVPacketUnref{});
std::unique_ptr<AVFrame, VideoPicture::AVFrameDeleter> pFrame{av_frame_alloc()};
while(self->videoq.get(*packet, self) >= 0)
while(self->videoq.get(packet.get(), self) >= 0)
{
if(packet->data == flush_pkt.data)
{
@ -458,7 +435,7 @@ public:
}
// Decode video frame
int ret = avcodec_send_packet(self->video_ctx, *packet);
int ret = avcodec_send_packet(self->video_ctx, packet.get());
// EAGAIN is not expected
if (ret < 0)
throw std::runtime_error("Error decoding video frame");
@ -504,7 +481,9 @@ public:
VideoState* self = mVideoState;
AVFormatContext *pFormatCtx = self->format_ctx;
PacketGuard packet;
AVPacket packetData;
av_init_packet(&packetData);
std::unique_ptr<AVPacket, AVPacketUnref> packet(&packetData, AVPacketUnref{});
try
{
@ -587,7 +566,7 @@ public:
continue;
}
if(av_read_frame(pFormatCtx, *packet) < 0)
if(av_read_frame(pFormatCtx, packet.get()) < 0)
{
if (self->audioq.nb_packets == 0 && self->videoq.nb_packets == 0 && self->pictq_size == 0)
self->mVideoEnded = true;
@ -598,9 +577,11 @@ public:
// Is this a packet from the video stream?
if(self->video_st && packet->stream_index == self->video_st-pFormatCtx->streams)
self->videoq.put(packet.release());
self->videoq.put(packet.get());
else if(self->audio_st && packet->stream_index == self->audio_st-pFormatCtx->streams)
self->audioq.put(packet.release());
self->audioq.put(packet.get());
else
av_packet_unref(packet.get());
}
}
catch(std::exception& e) {