137     int ret = -1;  in lv_ffmpeg_get_frame_num()  local
141         ret = ffmpeg_ctx->video_stream->nb_frames;  in lv_ffmpeg_get_frame_num()
145     return ret;  in lv_ffmpeg_get_frame_num()
382     int ret = -1;  in ffmpeg_output_video_frame()  local
456     ret = sws_scale(  in ffmpeg_output_video_frame()
466     return ret;  in ffmpeg_output_video_frame()
472     int ret = 0;  in ffmpeg_decode_packet()  local
475     ret = avcodec_send_packet(dec, pkt);  in ffmpeg_decode_packet()
476     if(ret < 0) {  in ffmpeg_decode_packet()
478                      av_err2str(ret));  in ffmpeg_decode_packet()
479         return ret;  in ffmpeg_decode_packet()
483     while(ret >= 0) {  in ffmpeg_decode_packet()
484         ret = avcodec_receive_frame(dec, ffmpeg_ctx->frame);  in ffmpeg_decode_packet()
485         if(ret < 0) {  in ffmpeg_decode_packet()
491             if(ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {  in ffmpeg_decode_packet()
495             LV_LOG_ERROR("Error during decoding (%s)", av_err2str(ret));  in ffmpeg_decode_packet()
496             return ret;  in ffmpeg_decode_packet()
501             ret = ffmpeg_output_video_frame(ffmpeg_ctx);  in ffmpeg_decode_packet()
505         if(ret < 0) {  in ffmpeg_decode_packet()
506             LV_LOG_WARN("ffmpeg_decode_packet ended %d", ret);  in ffmpeg_decode_packet()
507             return ret;  in ffmpeg_decode_packet()
518     int ret;  in ffmpeg_open_codec_context()  local
524     ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);  in ffmpeg_open_codec_context()
525     if(ret < 0) {  in ffmpeg_open_codec_context()
528         return ret;  in ffmpeg_open_codec_context()
531         stream_index = ret;  in ffmpeg_open_codec_context()
551         if((ret = avcodec_parameters_to_context(*dec_ctx, st->codecpar)) < 0) {  in ffmpeg_open_codec_context()
555             return ret;  in ffmpeg_open_codec_context()
559         if((ret = avcodec_open2(*dec_ctx, dec, &opts)) < 0) {  in ffmpeg_open_codec_context()
562             return ret;  in ffmpeg_open_codec_context()
574     int ret = -1;  in ffmpeg_get_image_header()  local
584         return ret;  in ffmpeg_get_image_header()
618         ret = 0;  in ffmpeg_get_image_header()
628     return ret;  in ffmpeg_get_image_header()
645     int ret = 0;  in ffmpeg_update_next_frame()  local
657                 ret = ffmpeg_decode_packet(ffmpeg_ctx->video_dec_ctx,  in ffmpeg_update_next_frame()
664             if(ret < 0) {  in ffmpeg_update_next_frame()
665                 LV_LOG_WARN("video frame is empty %d", ret);  in ffmpeg_update_next_frame()
675             ret = -1;  in ffmpeg_update_next_frame()
680     return ret;  in ffmpeg_update_next_frame()
802     int ret;  in ffmpeg_image_allocate()  local
805     ret = av_image_alloc(  in ffmpeg_image_allocate()
813     if(ret < 0) {  in ffmpeg_image_allocate()
815         return ret;  in ffmpeg_image_allocate()
818     LV_LOG_INFO("alloc video_src_bufsize = %d", ret);  in ffmpeg_image_allocate()
820     ret = av_image_alloc(  in ffmpeg_image_allocate()
828     if(ret < 0) {  in ffmpeg_image_allocate()
830         return ret;  in ffmpeg_image_allocate()
833     LV_LOG_INFO("allocate video_dst_bufsize = %d", ret);  in ffmpeg_image_allocate()