avcodec_receive_frame return error, error code is AVERROR(EAGAIN)

[lpz]

i want to use ffmpeg to decode a video file. but when i use avcodec_receive_frame, it return -35, pls help me.

[lpz]

this is the program output:
➜ splayer git:(master) ✗ gcc av.c -lavcodec -lavformat && ./a.out
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/lpz/splayer/splayer/splayer/ii.mp4':

Metadata:

major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.76.100
comment : vid:v02004c20000bclgv09q4do2tlivhiag

Duration: 00:01:44.67, start: 0.000000, bitrate: 308 kb/s

Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 854x480 [SAR 1280:1281 DAR 16:9], 239 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:

handler_name : VideoHandler

Stream #0:1(und): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 64 kb/s (default)
Metadata:

handler_name : SoundHandler

videoStream = 0
pkt->size = 371. 1
pkt->size = 23171. 0
err ret = -35.-35, -541478725
pkt->size = 372. 1
pkt->size = 4253. 0
err ret = -35.-35, -541478725
pkt->size = 588. 1
pkt->size = 410. 0
err ret = -35.-35, -541478725

[Marton Balint]

It is perfectly normal if avcodec_receive_frame returns EAGAIN, it only means you must feed additional packets to the decoder with avcodec_send_packet before you can receive frames.

Please read the API docs.