# 示例:打印音频包的大小和时长ifpacket:print("Packet size:",packet.size)print("Packet duration:",packet.duration)# 释放数据包 packet.close()except ffmpeg.Errorase:ife.errno==ffmpeg.AVERROR_EAGAIN:continueelse:raise # 判断是否解码结束ifpacket is None:break# 关闭解码器 codec_context.close() 在...
在循环解码过程中,我们捕获ffmpeg.Error异常,并判断其错误代码是否为AVERROR(EAGAIN),如果是的话,我们继续循环。这样可以保证在解码器内部有可用数据包时及时获取。 总结:avcodec_receive_packet返回AVERROR(EAGAIN)可能是因为解码器内部缓冲区没有可用的数据包。通过适当地处理该错误,如继续调用avcodec_receive_packet函数...
AVERROR(EAGAIN): 表示输出缓冲区中没有可用的数据包,需要继续调用avcodec_receive_packet。 AVERROR_EOF: 表示输入的数据已经全部处理完毕,不再有新的输出数据包。 其他负数值: 表示发生了错误。 使用示例 下面我们以一个简单的音视频编码示例来演示avcodec_receive_packet函数的使用方法。 cCopy code AVCodecContext*...
avctx:编码器上下文,用于指定要接收数据包的编码器。 avpkt:输出的数据包,通过该参数返回编码器输出的数据。 返回值说明: 返回0表示成功接收到一个数据包。 返回AVERROR(EAGAIN)表示需要更多数据才能接收到数据包。 返回AVERROR_EOF表示已经接收到了所有的数据包。 在使用avcodec_receive_packet函数时,一般需要配合av...
* @return 0 on success, otherwise negative error code: * AVERROR(EAGAIN): input is not accepted right now - the packet must be * resent after trying to read output * AVERROR_EOF: the decoder has been flushed, and no new packets can ...
ret= decode_receive_frame_internal(avctx, avci->buffer_frame);if(ret <0&& ret != AVERROR(EAGAIN) && ret !=AVERROR_EOF)returnret; }return0; } avcodec_receive_frame函数 intattribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame) ...
std::cerr<<"Error sending a frame for encoding: "<<av_err2str(ret)<<std::endl; returnret; } while(ret>=0){ ret=avcodec_receive_packet(codec_context,packet); if(ret==AVERROR(EAGAIN)||ret==AVERROR_EOF) break; elseif(ret<0){ ...
* unnecessary and will return AVERROR_EOF. If the decoder * still has frames buffered, it will return them after sending * a flush packet. * * @return 0 on success, otherwise negative error code: * AVERROR(EAGAIN): input is not accepted right now - the packet must be ...
* @return 0 on success, otherwise negative error code: * AVERROR(EAGAIN): input is not accepted right now - the packet must be * resent after trying to read output * AVERROR_EOF: the decoder has been flushed, and no new packets can ...
* @return 0 on success, otherwise negative error code: * AVERROR(EAGAIN): input is not accepted right now - the packet must be * resent after trying to read output * AVERROR_EOF: the decoder has been flushed, and no new packets can ...